Дисертації з теми "Motion Capture Analysis Optimization"
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Cockcroft, Stephen John. "An evaluation of inertial motion capture technology for use in the analysis and optimization of road cycling kinematics." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6760.
Повний текст джерелаENGLISH ABSTRACT: Optical motion capture (Mocap) systems measure 3D human kinematics accurately and at high sample rates. One of the limitations of these systems is that they can only be used indoors. However, advances in inertial sensing have led to the development of inertial Mocap technology (IMCT). IMCT measures kinematics using inertial measurement units (IMUs) attached to a subject's body without the need for external sensors. It is thus completely portable which opens up new horizons for clinical Mocap. This study evaluates the use of IMCT for improving road cycling kinematics. Ten male sub-elite cyclists were recorded with an IMCT system for one minute while cycling at 2, 3.5 and 5.5 W.kg-1 on a stretch of road and on a stationary trainer. A benchmark test was also done where cycling kinematics was measured simultaneously with the IMCT and a gold-standard Vicon optical system. The first goal was to assess the feasibility of conducting field measurements of cycling kinematics. Magnetic analysis results showed that the IMUs near the pedals and handlebars experienced significant magnetic interference (up to 50% deviation in intensity) from ferrous materials in the road bicycles, causing significant errors in kinematic measurement. Therefore, it was found that the IMCT cannot measure accurate full-body kinematics with the subject on a road bicycle. However, the results of the benchmark test with the Vicon showed that the IMCT can still measure accurate hip (root mean square error (RMSE) < 1°), knee (RMSE < 3.5°) and ankle (RMSE < 3°) flexion using its Kinematic Coupling algorithm. The second goal was to determine whether there is a significant difference between road cycling kinematics captured on the road and in a laboratory. The outdoor flexion results were significantly different to the indoor results, especially for minimum flexion (P < 0.05 for all joints). Changes in rider kinematics between high and low power were also found to have significantly more variability on the road (R2 = 0.36, 0.61, 0.08) than on the trainer (R2 = 0.93, 0.89, 0.56) for the hip, knee and ankle joints respectively. These results bring into question the ecological validity of laboratory cycling. Lastly, applications of IMCT for optimizing cycling performance were to be identified. Several aspects of kinematic analysis and performance optimization using the IMCT were evaluated. It was determined that IMCT is most suited for use as a dynamic bicycle fitting tool for analysis of biomechanical efficiency, bilateral asymmetry and prevention of overuse injuries. Recommendations for future work include the elimination of the magnetic interference and integration of the IMCT data with kinetic measurements to develop an outdoor dynamic fitting protocol.
AFRIKAANSE OPSOMMING: Optiese bewegingswaarnemingstelsels (BWS) meet drie-dimensionele menslike kinematika met hoë akkuraatheid en teen hoë monstertempo's. Een van die nadele van BWS is dat hulle slegs binnenshuis gebruik kan word. Onlangse ontwikkelings in sensor tegnologie het egter gelei na die beskikbaarheid van traagheids-BWS-tegnologie (TBT). TBT gebruik traagheidsmetingseenhede (TMEs) wat aan 'n persoon se liggaam aangeheg kan word om die kinematika te verkry sonder enige eksterne sensore. TBT is dus volkome draagbaar, wat nuwe geleenthede skep vir kliniese bewingsanalises. Hierdie projek evalueer die gebruik van TBT vir die verbetering van fietsry kinematika. Tien kompeterende fietsryers (manlik) was getoets met 'n TBT terwyl hulle teen 2, 3.5 and 5.5 W.kg-1 gery het op 'n pad, en op 'n stilstaande oefenfietsraam. 'n Maatstaftoets was ook uitgevoer waar fietsry-kinematika gelyktydig met die TBT en die Vicon optiese BWS opgeneem was. Die eerste doel van die navorsing was om die moontlikheid te ondersoek of fietsryer kinematika op die pad gemeet kan word. Die resultate toon dat die ferro-magnetiese materiale wat in meeste padfietse voorkom, 'n beduidende magnetiese steuring (tot 50% afwyking in intensiteit) op die TMEs naby die pedale en handvatsels veroorsaak, wat lei tot aansienlike foute in die kinematiese metings. Gevolglik was dit gevind dat die TBT nie volle-liggaam kinematika op 'n fiets kan meet nie. Nogtans, het die resultate van die Vicon maatstaftoets bewys dat die TBT nog steeds akkurate heup (wortel van die gemiddelde kwadraad fout (WGKF) < 1°), knie (WGKF < 4°) en enkel (WGKF < 3°) fleksie kan meet met die “Kinematiese Koppeling” algoritme. Die tweede doel was om te bepaal of daar 'n beduidende verskil tussen die laboratorium en pad fietsry-kinematika is. Die buitelug fleksie data het beduidend verskil van die binnenshuise resultate, veral vir minimum fleksie (P < 0.05 vir alle gewrigte). Veranderinge in fietsryer kinematika tussen hoë en lae krag het ook beduidend meer variasie op die pad (R2 = 0.36, 0.61, 0.08) as op die oefenfietsraam (R2 = 0.93, 0.89, 0.56) vir die heup, knie en enkel gewrigte, onderskeidelik, gehad. Hierdie resultate bevraagteken die ekologiese geldigheid van kinematiese toetse op fietsryers in 'n laboratorium. 'n Laaste doel was om die toepassings van TBT vir die optimering van fietsry kinematika te ondersoek. 'n Verskeidenheid aspekte van die analise en verbetering van fietsry kinematika met die TBT word bespreek. Die gevolgtrekking is dat TBT geskik is vir gebruik as 'n dinamiese instrument vir die analise van biomeganiese doetreffendheid, bilaterale asimmetrie en die voorkoming van beserings. Aanbevelings vir toekomstige werk, sluit in die uitskakeling van die magnetiese inmenging, asook die integrasie van die TBT data met kinetiese metings.
Xiao, Zhidong. "Motion capture based motion analysis and motion synthesis for human-like character animation." Thesis, Bournemouth University, 2009. http://eprints.bournemouth.ac.uk/14590/.
Повний текст джерелаFrick, Eric. "Joint center estimation by single-frame optimization." Diss., University of Iowa, 2018. https://ir.uiowa.edu/etd/6575.
Повний текст джерелаLindequist, Jonas, and Daniel Lönnblom. "Construction of a Motion Capture System." Thesis, Växjö University, School of Mathematics and Systems Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-24.
Повний текст джерелаMotion capture is the process of capturing movements from real life into a computer. Existing motion capture systems are often very expensive and require advanced hardware that makes the process complex. This thesis will answer the following question: is it possible to create an optical motion capture system using only a single low cost Dvcamera (Digital Video Camera), that still will produce accurate motion capture data? To answer this question and construct our motion capture system we need to complete these following steps:
• Create a usable film sequence.
• Analyze the sequence.
• Create motion capture data.
• Apply the motion capture data for 3D character and analyze the outcome.
The method chosen for this thesis is constructive research. In short terms it is the study of whether we can or cannot build a new artifact. The following theoretic tools were used in the process of creating a motion capture system: Color theory, RGB, Connected component labeling, Skeletons in 3D animation, Calculating angels using trigonometry, .x files and Quaternions. We have found that an optical motion capture system is very complex and it is hard to produce as a low budget system. Our attempt did not live up to our expectations. The idea with using only one DV camera was to simplify the system since it would require no calibration or syncronisation. It would also make the system cost efficient and more available to the general public. The single camera solution unfortunatly created a number of problems in our system. Our system does however work with less complex movements. It can produce motion capture data that is accurate enough to be used in low budget games. It is also cost effective compared to other systems on the market. The system has a very easy setup and does not need any calibration in addition to the init position.
Cloete, Teunis. "Benchmarking full-body inertial motion capture for clinical gait analysis." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/2922.
Повний текст джерелаThesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2009.
Clinical gait analysis has been proven to greatly improve treatment planning and monitoring of patients suffering from neuromuscular disorders. Despite this fact, it was found that gait analysis is still largely underutilised in general patient-care due to limitations of gait measurement equipment. Inertial motion capture (IMC) is able to overcome many of these limitations, but this technology is relatively untested and is therefore viewed as adolescent. This study addresses this problem by evaluating the validity and repeatability of gait parameters measured with a commercially available, full-body IMC system by comparing the results to those obtained with alternative methods of motion capture. The IMC system’s results were compared to a trusted optical motion capture (OMC) system’s results to evaluate validity. The results show that the measurements for the hip and knee obtained with IMC compares well with those obtained using OMC – with coefficient-of-correlation (R) values as high as 0.99. Some discrepancies were identified in the ankle-joint validity results. These were attributed to differences between the two systems with regard to the definition of ankle joint and to non-ideal IMC system foot-sensor design. The repeatability, using the IMC system, was quantified using the coefficient of variance (CV), the coefficient of multiple determination (CMD) and the coefficient of multiple correlation (CMC). Results show that IMC-recorded gait patterns have high repeatability for within-day tests (CMD: 0.786-0.984; CMC: 0.881-0.992) and between-day tests (CMD: 0.771-0.991; CMC: 0.872-0.995). These results compare well with those from similar studies done using OMC and electromagnetic motion capture (EMC), especially when comparing between-day results. Finally, to evaluate the measurements from the IMC system in a clinically useful application, a neural network was employed to distinguish between gait strides of stroke patients and those of able-bodied controls. The network proved to be very successful with a repeatable accuracy of 99.4% (1/166 misclassified). The study concluded that the full-body IMC system produces sufficiently valid and repeatable gait data to be used in clinical gait analysis, but that further refinement of the ankle-joint definition and improvements to the foot sensor are required.
Dagnes, Nicole. "3D human face analysis for recognition applications and motion capture." Thesis, Compiègne, 2020. http://www.theses.fr/2020COMP2542.
Повний текст джерелаThis thesis is intended as a geometrical study of the three-dimensional facial surface, whose aim is to provide an application framework of entities coming from Differential Geometry context to use as facial descriptors in face analysis applications, like FR and FER fields. Indeed, although every visage is unique, all faces are similar and their morphological features are the same for all mankind. Hence, it is primary for face analysis to extract suitable features. All the facial features, proposed in this study, are based only on the geometrical properties of the facial surface. Then, these geometrical descriptors and the related entities proposed have been applied in the description of facial surface in pattern recognition contexts. Indeed, the final goal of this research is to prove that Differential Geometry is a comprehensive tool oriented to face analysis and geometrical features are suitable to describe and compare faces and, generally, to extract relevant information for human face analysis in different practical application fields. Finally, since in the last decades face analysis has gained great attention also for clinical application, this work focuses on musculoskeletal disorders analysis by proposing an objective quantification of facial movements for helping maxillofacial surgery and facial motion rehabilitation. At this time, different methods are employed for evaluating facial muscles function. This research work investigates the 3D motion capture system, adopting the Technology, Sport and Health platform, located in the Innovation Centre of the University of Technology of Compiègne, in the Biomechanics and Bioengineering Laboratory (BMBI)
Agarwal, Ankur. "Machine Learning for Image Based Motion Capture." Phd thesis, Grenoble INPG, 2006. http://tel.archives-ouvertes.fr/tel-00390301.
Повний текст джерелаBrownridge, Adam Mark. "Real-time motion capture for analysis and presentation within virtual environments." Thesis, Manchester Metropolitan University, 2014. http://e-space.mmu.ac.uk/326218/.
Повний текст джерелаLewis, Robert Alan. "Analysis of a self-contained motion capture garment for e-textiles." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/32529.
Повний текст джерелаMaster of Science
Hanson, Andrew Todd. "Markerless Motion Capture and Analysis System to Enhance Exercise Professional Effectiveness: Preliminary Study." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1481223866357858.
Повний текст джерелаAlcoverro, Vidal Marcel. "Stochastic optimization and interactive machine learning for human motion analysis." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/285337.
Повний текст джерелаL'anàlisi del moviment humà a partir de dades visuals és un tema central en la recerca en visió per computador, per una banda perquè habilita un ampli espectre d'aplicacions i per altra perquè encara és un problema no resolt quan és aplicat en escenaris no controlats. L'analisi del moviment humà s'utilitza a l'indústria de l'entreteniment per la producció de pel·lícules i videojocs, en aplicacions mèdiques per rehabilitació o per estudis bio-mecànics. També s'utilitza en el camp de la interacció amb computadors o també per l'analisi de grans volums de dades de xarxes socials com Youtube o Flickr, per mencionar alguns exemples. En aquesta tesi s'han estudiat tècniques per l'anàlisi de moviment humà enfocant la seva aplicació en entorns de sales intel·ligents. És a dir, s'ha enfocat a mètodes que puguin permetre l'anàlisi del comportament de les persones a la sala, que permetin la interacció amb els dispositius d'una manera natural i, en general, mètodes que incorporin les computadores en espais on hi ha activitat de persones, per habilitar nous serveis de manera que no interfereixin en la activitat. A la primera part, es proposa un marc genèric per l'ús de filtres de partícules jeràrquics (HPF) especialment adequat per tasques de captura de moviment humà. La captura de moviment humà generalment implica seguiment i optimització de vectors d'estat de molt alta dimensió on a la vegada també s'han de tractar pdf's multi-modals. Els HPF permeten tractar aquest problema mitjançant multiples passades en subdivisions del vector d'estat. Basant-nos en el marc dels HPF, es proposa un mètode per estimar l'antropometria del subjecte, que a la vegada permet obtenir un model acurat del subjecte. També proposem dos nous mètodes per la captura de moviment humà. Per una banda, el APO es basa en una nova estratègia per les funcions de cost basada en la partició de les observacions. Per altra, el DD-HPF utilitza deteccions de parts del cos per millorar la propagació de partícules i l'avaluació de pesos. Ambdós mètodes són integrats dins el marc dels HPF. La segona part de la tesi es centra en la detecció de gestos, i s'ha enfocat en el problema de reduir els esforços d'anotació i entrenament requerits per entrenar un detector per un gest concret. Per tal de reduir els esforços requerits per entrenar un detector de gestos, proposem una solució basada en online random forests que permet l'entrenament en temps real, mentre es reben noves dades sequencialment. El principal aspecte que fa la solució efectiva és el mètode que proposem per obtenir mostres negatives rellevants, mentre s'entrenen els arbres de decisió. El mètode utilitza el detector entrenat fins al moment per recollir mostres basades en la resposta del detector, de manera que siguin més rellevants per l'entrenament. D'aquesta manera l'entrenament és més efectiu pel que fa al nombre de mostres anotades que es requereixen.
Iloeje, Chukwunwike Ogbonnia. "Rotary (redox) reactor-based oxy combustion chemical looping power cycles for CO₂ capture : analysis and optimization." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/104249.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (pages 224-229).
A number of CO₂ capture-enabled power generation technologies have been proposed to address the negative environmental impact of CO₂ emission. An important barrier to adopting these technologies is the associated energy and economic penalties. Chemical-looping (CLC) is an oxycombustion technology that can significantly lower such penalties, utilizing a redox process to eliminate the need for an air separation unit and enable better energy integration. Conventional CLC employs two separate reactors, with metal oxide particles circulating pneumatically in-between, leading to significant irreversibility associated with reactor temperature difference. A rotary reactor, on the other hand, maintains near-thermal equilibrium between the two stages by thermally coupling channels undergoing oxidation and reduction. In this thesis, a multiscale analysis for assessing the integration of the rotary CLC reactor technology in power generation systems is presented. This approach employs a sequence of models that successively increase the resolution of the rotary reactor representation, ranging from interacting thermal reservoirs to higher fidelity quasi-steady state models, in order to assess the efficiency potential and perform a robust optimization of the integrated system. Analytical thermodynamic availability and ideal cycles are used to demonstrate the positive impact of reactor thermal coupling on system efficiency. Next, detailed process flow-sheet models in which the rotary reactor is modeled as a set of interacting equilibrium reactors are used to validate the analytical model results, identify best cycle configurations and perform preliminary parametric analysis for between the reactor and the system while maintaining computational efficiency, an intermediate fidelity model is developed, retaining finite rate surface kinetics and internal heat transfer within the reactor. This model is integrated with a detailed system model and used for optimization, parametric analysis and characterization of the relative techno-economic performance of different oxygen carrier options for thermal plants integrated with the rotary CLC reactor. Results show that thermal coupling in the redox process increases the efficiency by up to 2% points for combined, recuperative and hybrid cycles. The studies also show that the thermal efficiency is a function of the reactor purge steam demand, which depends on the reactivity of the oxygen carrier. While purge steam constitutes a monotonic parasitic loss for the combined cycle, for recuperative and hybrid cycles, it raises the efficiency as long as the steam demand is less than a threshold value. This relationship between reactivity and system efficiency provides a useful selection criteria for the oxygen carrier material. Optimization results based on efficiency and levelized cost of electricity (LCOE) identify nickel-based oxygen carriers as the most suitable for the rotary reactor because its high reactivity ensures low steam demand and reactor cost. Compared to nickel, maximum efficiency and minimum LCOE are respectively 7% lower and 40% higher for a copper-based system; iron-based systems have 4% higher maximum efficiency and 7% higher minimum LCOE. This study also showed that optimal efficiency generally has an inverse profile to that for the optimized LCOE.
by Chukwunwike Ogbonnia Iloeje.
Ph. D.
Magee, Patrick. "Whole-body predictors of wrist shot accuracy in ice hockey: a kinematic analysis by way of motion capture." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=67030.
Повний текст джерелаAbrégéL'objectif premier de cette étude était d'identifier les mouvements caractéristiques du corps des joueurs de hockey correspondant à la précision de tirs du poignet stationnaire à travers différents niveaux d'habiletés. Un total de vingt-quatre sujets ont fait partie de l'échantillon. Chacun d'eux ont dû réussir correctement dix lancers dans chacune des quatre différentes cibles. La performance des sujets a été évaluée en mesurant la cinématique du corps, du bâton et de la rondelle à l'aide de marqueur réfléchissants qui ont été filmé à l'aide d'un système d'analyse du mouvement composé de huit caméra infrarouge (Vicon®), le tout étant enregistré à 240 Hz. Avec le niveau de précision comme variable dépendante, une analyse de régression multiple a été effectuée avec les variables cinématiques de toutes les articulations. Les résultats ont démontrés qu'il n'y a pas de prédicteurs universels à travers les différentes cibles considérant qu'une ou plusieurs articulations peuvent ajuster leurs vitesses, amplitudes et séquences pour effectuer un lancer précis. Des prédicteurs important ont été identifiés dans les membres inférieurs, le tronc ainsi que dans les membres supérieur. Les membres inférieurs semblent permettent une base de support stable ainsi qu'un transfert de poids efficace en direction de la cible visée. De plus, la jambe arrière permettrait de contrer le momentum angulaire qui pourrait débalancé le système en équilibre. Le déplacement angulaire du tronc (pelvis, thorax et colonne lombaire) permet d'orienter de façon à ce que les membres supérieurs puissent bouger de façon optimale en plus de contribuer à la production de force transmisse à la rondelle. Pour terminer, la précision semble être associée à un contrôle plus dynamique du poignet et de l'épaule du membre supérieur contrôlant le haut du bâton.
Hannah, Iain. "Improving the validity of shod human footstrike modelling with dynamic loading conditions determined from biomechanical motion capture trials." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/14904.
Повний текст джерелаYazdi, Far Mahshid. "Studies of hip impingement diagnosis." Thesis, Brunel University, 2014. http://bura.brunel.ac.uk/handle/2438/13868.
Повний текст джерелаWang, Xianwang. "Single View Reconstruction for Human Face and Motion with Priors." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_diss/62.
Повний текст джерелаNutti, Björn. "Development and Evaluation of an Inertial Sensor for Gait Analysis." Thesis, Linköping University, Department of Electrical Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-7404.
Повний текст джерелаHasomed GmbH, a German company in the Field of medicine technology, intends to introduce a gait analysis system on the market. The system includes an inertial sensor which collects data used for generating movement patterns of the feet. This thesis describes the development and evaluation of a new version of the sensor, aimed at minimizing costs, maximizing performance and facilitating production.
Algorithms used in the gait analysis system are sensitive to noise. Noise sources and precautions taken in order to minimize noise levels are described and discussed. By minimizing the physical size of analogue electronics blocks, static noise and occasional high frequency components were substantially reduced.
New features including internal temperature sensors, firmware update via serial interface, self-test functions and a wireless link were implemented. Additional improvements are e.g. lower power consumption and an extension of the interface from 2 to 256 (theoretical limit) attached devices. By reducing the number of included components and PCB (Printed Circuit Board) layers, together with use of components that do not require advanced soldering techniques, easier and cheaper production was obtained.
Research and development presented in this thesis resulted in a sensor with overall good performance and new features.
Dai, Wei. "FPCA Based Human-like Trajectory Generating." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4811.
Повний текст джерелаNeninger, Carlos Rafael. "Robotic Hand Evaluation Based on Task Specific Kinematic Requirements." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3262.
Повний текст джерелаNorton, Brandon M. "Articulated Spine for a Robot to Assist Children with Autism." BYU ScholarsArchive, 2014. https://scholarsarchive.byu.edu/etd/5542.
Повний текст джерелаRondina, Mattia. "Studio di validità concorrente tra sistema indossabile basato su IMU e stereofotogrammetria usata come gold standard." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8641/.
Повний текст джерелаZhou, Wei, and 周硙. "Topics in optimal stopping with applications in mathematical finance." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B46582046.
Повний текст джерелаFernando, W. K. Ganga Sripali Sharmen. "Development and optimization of On-Probe Affinty Capture (OPAC) MALDI mass spectrometry for the fractionation and analysis of complex protein mixtures /." Available to subscribers only, 2009. http://proquest.umi.com/pqdweb?did=1967938391&sid=1&Fmt=2&clientId=1509&RQT=309&VName=PQD.
Повний текст джерелаFernando, Ganga Sripali. "DEVELOPMENT AND OPTIMIZATION OF ON-PROBE AFFINTY CAPTURE (OPAC) MALDI MASS SPECTROMETRY FOR THE FRACTIONATION AND ANALYSIS OF COMPLEX PROTEIN MIXTURES." OpenSIUC, 2009. https://opensiuc.lib.siu.edu/dissertations/68.
Повний текст джерелаFoss, Kari D. "Kinetic and kinematic gait analysis in Doberman Pinschers with and without cervical spondylomyelopathy." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1337003842.
Повний текст джерелаGu, Tianyu. "Improved Trajectory Planning for On-Road Self-Driving Vehicles Via Combined Graph Search, Optimization & Topology Analysis." Research Showcase @ CMU, 2017. http://repository.cmu.edu/dissertations/794.
Повний текст джерелаCarter, Sarah Louise. "Lower leg and foot contributions to turnout in pre-professional female dancers: A clinical and kinematic analysis." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2018. https://ro.ecu.edu.au/theses/2101.
Повний текст джерелаOchs, Peter [Verfasser], and Thomas [Akademischer Betreuer] Brox. "Long term motion analysis for object level grouping and nonsmooth optimization methods = Langzeitanalyse von Bewegungen zur objektorientierten Gruppierung und nichglatte Optimierungsmethoden." Freiburg : Universität, 2015. http://d-nb.info/1123488894/34.
Повний текст джерелаDevos, Pierre. "Contribution biomécanique à l'analyse cinématique in vivo des mouvements de la main humaine." Thesis, Compiègne, 2017. http://www.theses.fr/2017COMP2359/document.
Повний текст джерелаThe human hand is a prehensile organ which allows people to handle objects with various sizes and shapes. It is wonderful tool that can be used to perform different simple or complex tasks with strength or great dexterity. It is also a crucial tool in the daily life, both at home and in the workspace, and loss of hand functionality may quickly become disabling for some people. There are few studies in the literature. However, motion capture and kinematic analysis of the hand is becoming more and more of an interest in different areas such as medicine, ergonomics, sport, robotics, virtual reality and video games. Results from these studies have improved knowledge about skills of the hand and how to preserve them. The studies have also improved interactions between people and computers in order to command robots or to progress in virtual reality. The aim of the thesis was to develop methods for an in vivo and subject-specific kinematic analysis in order to contribute to the improvement of knowledge about the human hand motion. A first part of this thesis was to develop a protocol for the motion capture of the hand for male and female subjects aged from 20 to 50 years old. The motion capture was performed using an optoelectronic system with passive markers glued on the skin of the hand. Two sorts of movements were captured. Firstly, functional movements like flexion-extension and abduction-adduction. Secondly, prehensile movements of cylindrical and spherical objects. Then, markers on the motion captures were identified in order to extract their trajectories. The second part of this thesis consisted in the development of a method for the kinematic analysis of external hand movements from the marker trajectories. Validation of this method was achieved using a model of the hand developed in silico. Since no noise was added to the marker trajectories in the silico model; kinematic parameters were estimated with precision. Moreover, assessment of the functional methods showed that the hand motions can be approximated by a plane, a circular arc or a spherical cap depending on the joint studied. After constructing the functional coordinate systems for each segment of the hand using the joint kinematic parameters, it was possible to decompose any joint rotation into three Cardan angles. This decomposition method was validated using the marker trajectories of the hand model, except for the trapeziometacarpal (TMC) and the metacarpophalangeal (MCP1) joints of the thumb which are more difficult to study. The last part of this thesis consisted in the analysis of the functional and the prehensile movements from the motion captures. The curves of the Cardan angles obtained from the functional movements are similar to those presented in the literature for all of the joints, except for the TMC joint. It was also noticed that the joint rotations do not occur around only one axis, but around one dominant axis and one or two secondary axes. However, some differences between the curves of the Cardan angles around the secondary axes obtained in this thesis and those presented in the literature were noticed for some joints. Despite only few prehensile grasps were analyzed, some interesting correlations were also found between the hand shape and the objects grasped, more particularly at the metacarpophalangeal (MCP) and the distal interphalangeal (DIP) joints
Visi, Federico. "Methods and technologies for the analysis and interactive use of body movements in instrumental music performance." Thesis, University of Plymouth, 2017. http://hdl.handle.net/10026.1/8805.
Повний текст джерелаKat, Bora. "Mathematical Modeling For Energy Policy Analysis." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613762/index.pdf.
Повний текст джерелаShublaq, Nour. "Use of inertial sensors to measure upper limb motion : application in stroke rehabilitation." Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:3b1709fb-8be6-4402-b846-096693fc75bc.
Повний текст джерелаCourtemanche, Simon. "Analyse et simulation des mouvements optimaux en escalade." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENM082/document.
Повний текст джерелаHow optimal are human movements ? This thesis tackles this issue by focusing especially on climbing movements, studied here under three complementary aspects which are the experimental gathering of climbing sequences, the biomechanical analysis of these data, and the synthesis of gestures by timing optimization. Walking has been largely studied, with good results in animation [Mordatch 2013]. We are interested here especially in the original question of climbing motions, whose diversity and multicontact aspect present an interesting complexity for the evaluation of the human motion characteristics. The heterogeneity of climbing gestures can be linked to several factors which are the variety of wall shapes, the multiplicity of climber skill levels, and different climbing categories, namely bouldering, route climbing or speed climbing. Our exploratory approach of this sport consists in three steps: the data collection by multicamera marker-based motion capture, combined with a set of force sensors mounted on an in-laboratory bouldering wall; a gesture analysis by inverse dynamics, taking only kinematic data as inputs, based on the minimization of internal torques to resolve the multicontact ambiguity, intrinsic to the climbing activity, validated by comparison with sensor measurements; and finally, the use of the energy efficiency criterion for synthesizing the best timing associated with a given sequence of movements. Experimental recordings were made at McGill University which has a climbing wall instrumented of 6 force sensors, and a motion capture device of 24 cameras, which allowed us to collect data on a population of nine subjects. The analysis of these data is the second part of this thesis. The addressed challenge is to find the external forces and internal torques from the climber's movements only. To this end we assume an optimal distribution of internal torques. After analysis, the distribution turns out to be rather uniform than proportional to the muscle capacity associated to each body joint. Finally, in a third and last part, we focus on the timing of climbing gestures, taking as input the path of the climber, possibly after inverse kinematics in order to overcome the need for a capture with markers and infrared cameras. As output, an optimal timing for this path is found. This timing is realistic, but lacks of a modelization for hesitation and decision making instants, as well as a model for the contact establishment, with the associated temporal delay currently not taken into account
Hassemer, Julius [Verfasser], Irene Akademischer Betreuer] Mittelberg, Klaus [Akademischer Betreuer] [Willmes, and Cornelia [Akademischer Betreuer] Müller. "Towards a theory of gesture form analysis : imaginary forms as part of gesture conceptualisation, with empirical support from motion-capture data / Julius Hassemer ; Irene Mittelberg, Klaus Willmes-von Hinckeldey, Cornelia Müller." Aachen : Universitätsbibliothek der RWTH Aachen, 2015. http://d-nb.info/1130792374/34.
Повний текст джерелаHassemer, Julius Verfasser], Irene [Akademischer Betreuer] Mittelberg, Klaus [Akademischer Betreuer] [Willmes, and Cornelia [Akademischer Betreuer] Müller. "Towards a theory of gesture form analysis : imaginary forms as part of gesture conceptualisation, with empirical support from motion-capture data / Julius Hassemer ; Irene Mittelberg, Klaus Willmes-von Hinckeldey, Cornelia Müller." Aachen : Universitätsbibliothek der RWTH Aachen, 2015. http://d-nb.info/1130792374/34.
Повний текст джерелаRopars, Mickaël. "Contribution clinique et biomécanique au diagnostic d’hyperlaxité de l’épaule." Thesis, Rennes 2, 2014. http://www.theses.fr/2014REN20010.
Повний текст джерелаThe aim of this study was to give a new definition to shoulder hyperlaxity. This work was conduced with clinical, surgical andmotion capture experimentations. We first gave a definition of hyperlaxity, as described actually in the literature, and its link with shoulder instability and treatment. Chapter 1 described also motion capture technics used along this work. Then, several studies were proposed. Study n°2 was a surgical one, and tempted to correlate peroperative capsular laxity and hyperlaxity. Therafter, study n°3 looked for an optimized way to examine external rotation of the shoulder. Studies N° 4 and 5 used motion capture analysis to assess clinical shoulder examination patterns and global reachable shoulder space volume. This volume was finally correlated to shoulder sign of hyperlaxity in study n°6. The last chapter, « general conclusions and perspectives » gather together conclusions of each study and redefine hyperlaxity. Finally, we report our prospect, giving first results of an anatomical study exploring the volumetric definition of shoulder range of motion described previously
Nilsson, Jeremias, and Markus Tinnfält. "Automatisk Identifiering av Nyckelpositioner i Golf – Med Xbox Kinect V2." Thesis, Högskolan i Borås, Akademin för bibliotek, information, pedagogik och IT, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-10460.
Повний текст джерелаThis study presents an artifact that is using Microsoft Kinect for motion capturing of golf swings, in order to identify key positions in an automatic fashion. The main method used is design science research. The Kinect sensor, which is developed for the Xbox video game console, can be used for general motion capture. It is, however, not tailored for golf swings and it also lacks the ability to track external objects such as the golf club. These problems were the main motivation for the purpose of this study, i.e. to develop an application to identify the five most important positions in the golf swing. The key positions were defined based on measurable traits, making it necessary to use the audio recording ability of the sensor for the impact position. The empirical investigation was performed at a driving range, and data from a total of 20 golf swings were gathered. In the next step, every key position was analyzed in a quantitative manner based on a number of criteria. The results show that the Kinect sensor may have some troubles recognizing certain positions, but still 87 % of the key positions captured were considered to be successfully identified. Specifically, 85 % of all impact positions were successfully identified. The study was limited to the chosen key positions, but shows good potential for automatic capturing of quantitative golf swing data, thus suggesting several possible directions for future research.
Kalawoun, Rawan. "Motion planning of multi-robot system for airplane stripping." Thesis, Université Clermont Auvergne (2017-2020), 2019. http://www.theses.fr/2019CLFAC008/document.
Повний текст джерелаThis PHD is a part of a French project named AEROSTRIP, (a partnership between Pascal Institute,Sigma, SAPPI, and Air-France industries), it is funded by the French Government through the FUIProgram (20th call). The AEROSTRIP project aims at developing the first automated system thatecologically cleans the airplanes surfaces using a process of soft projection of ecological media onthe surface (corn). My PHD aims at optimizing the trajectory of the whole robotic systems in orderto optimally strip the airplane. Since a large surface can not be totally covered by a single robot base placement, repositioning of the robots is necessary to ensure a complete stripping of the surface. The goal in this work is to find the optimal number of robots with their optimal positions required to totally strip the air-plane. Once found, we search for the trajectories of the robots of the multi-robot system between those poses. Hence, we define a general framework to solve this problem having four main steps: the pre-processing step, the optimization algorithm step, the generation of the end-effector trajectories step and the robot scheduling, assignment and control step.In my thesis, I present two contributions in two different steps of the general framework: the pre-processing step, the optimization algorithm step. The computation of the robot workspace is required in the pre-processing step: we proposed Interval Analysis to find this workspace since it guarantees finding solutions in a reasonable computation time. Though, our first contribution is a new inclusion function that reduces the pessimism, the overestimation of the solution, which is the main disadvantage of Interval Analysis. The proposed inclusion function is assessed on some Constraints Satisfaction Problems and Constraints Optimization problems. Furthermore, we propose an hybrid optimization algorithm in order to find the optimal number of robots with their optimal poses: it is our second contribution in the optimization algorithm step. To assess our hybrid optimization algorithm, we test the algorithm on regular surfaces, such as a cylinder and a hemisphere, and on a complex surface: a car
Harshe, Mandar. "Analyse et conception d'un système de rééducation de membres inférieurs reposant sur un robot parallèle à câbles." Phd thesis, Ecole Nationale Supérieure des Mines de Paris, 2012. http://pastel.archives-ouvertes.fr/pastel-00933732.
Повний текст джерелаArumuganainar, Ganesh Prasanth. "Simulation of Lower Limb Muscle Activity During Inclined Slope Walking." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-243914.
Повний текст джерелаBrodie, Matthew Andrew Dalhousie. "Development of fusion motion capture for optimisation of performance in alpine ski racing : a thesis presented in fulfilment of the requirements for the degree of Doctor of Philosophy in Science at Massey University, Wellington, New Zealand." Massey University, 2009. http://hdl.handle.net/10179/1041.
Повний текст джерелаBennison, John Charles. "Gait Analysis in Anterior Cruciate Ligament Reconstruction & Controls Across Different Levels of Visual Feedback." Ohio University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1617872112807014.
Повний текст джерелаMustard, Jonathan A. "The integrated sound, space and movement environment : The uses of analogue and digital technologies to correlate topographical and gestural movement with sound." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2006. https://ro.ecu.edu.au/theses/84.
Повний текст джерелаNeveux, Thibaut. "Modélisation et optimisation des procédés de captage de CO2 par absorption chimique." Thesis, Université de Lorraine, 2013. http://www.theses.fr/2013LORR0266/document.
Повний текст джерелаCO2 capture processes by chemical absorption lead to a large energy penalty on efficiency of coal-fired power plants, establishing one of the main bottleneck to its industrial deployment. The objective of this thesis is the development and validation of a global methodology, allowing the precise evaluation of the potential of a given amine capture process. Characteristic phenomena of chemical absorption have been thoroughly studied and represented with state-of-the-art models. The e-UNIQUAC model has been used to describe vapor-liquid and chemical equilibria of electrolyte solutions and the model parameters have been identified for four solvents. A rate-based formulation has been adopted for the representation of chemically enhanced heat and mass transfer in columns. The absorption and stripping models have been successfully validated against experimental data from an industrial and a laboratory pilot plants. The influence of the numerous phenomena has been investigated in order to highlight the most limiting ones. A methodology has been proposed to evaluate the total energy penalty resulting from the implementation of a capture process on an advanced supercritical coal-fired power plant, including thermal and electric consumptions. Then, the simulation and process evaluation environments have been coupled with a non-linear optimization algorithm in order to find optimal operating and design parameters with respect to energetic and economic performances
Fontanili, Luca. "Analisi del movimento per la valutazione delle forze muscolari nel movimento umano: protocollo di integrazione di tipici metodi di misura." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
Знайти повний текст джерелаJaisson, Maxime. "Pathologies fonctionnelles mandibulaires, de l'outil numérique à la recherche applicative." Thesis, Reims, 2013. http://www.theses.fr/2013REIMS037.
Повний текст джерелаThe main objective of this thesis was to use numerical engineering softwares in the framework of medical applications whose purpose was to understand the pathogenesis functional disorders, and to develop new therapeutic techniques (orofacial sphere). At first, finite elements tools based on rheological data has been used to understand the problem of TMJ. Numerical results associated with motion capture of the mandible have a better understanding the mandibular mechanical aspects. Moreover, in a second step, the CAD tools implemented to assist the preparation of the maxillofacial surgery. This new approach allowed a new methodology surgery interrupter tumors improving (i) controling the esthetic result, (ii) reducing the operating time and (iii) respecting a good TMJ congruence
Zamzami, Ziad. "Analyse et exploitation de la dynamique naturelle des robots sous-actionnés." Thesis, Sorbonne université, 2018. http://www.theses.fr/2018SORUS408.
Повний текст джерелаHumans and animals are capable of performing graceful and agile movements. One of the key ingredients for such complex behaviors is motor coordination to exploit their natural dynamics which results in a synergistic motion that surpasses their physical limits. Despite the existence of powerful tools such as nonlinear trajectory optimization, they are usually treated as a black box. This thesis introduces the Dynamical Coupling Map (DCM), a novel graphical analysis technique, to help gain insight into the resulting trajectory of the optimization and analyze the capability of underactuated robots while taking into consideration underactuation constraints and torque limits. The DCM analysis technique along with the three novel performance measures aptly named Natural Dynamics Indexes (NDI) demonstrate the pivotal role of exploiting the natural dynamics to exceed the robot's physical capability which is dictated by the input torques limits. Furthermore, the merits of the DCM analysis are demonstrated on several dynamic maneuvers such as the swing-up motion of a simplified model of a gymnast on high bar and standing high jump for a high-dimensional humanoid robot with arm swing. In addition, the DCM is extended from a posteriori analysis tool to a fundamental heuristic for generating dynamic motions by leveraging the probabilistic motion planning approach with a new natural dynamic based heuristic. Thus, introducing the Natural Dynamics based Tree (NDT), a novel sampling-based kinodynamic planning algorithm which plans a dynamic motion based on the natural dynamics of the system resulting in a more computational efficient motion planning and with high-quality motion solution
Bacot, Baptiste. "Geste et instrument dans la musique électronique : organologie des pratiques de création contemporaines." Thesis, Paris, EHESS, 2017. http://www.theses.fr/2017EHES0172.
Повний текст джерелаTechnological means of electronic music reconfigure musical practices. Because of the machines’ computation and automation capacities that mediate the sonic phenomenon, the causal relationship between instrumental gesture and sound is altered. Therefore, what does it mean to play electronic music? The concepts of gesture and musical instrument are traditionally employed for the analysis of musical practices, but how should they be understood in this context? To address these issues, we conducted an extensive fieldwork between 2010 and 2016 with professional musicians in various contexts: art music with real-time electronics, audiovisual performance, and popular electronic music. Our instrument-focused approach allows us to consider the materiality of electronic music itself, beyond aesthetics. Thus, this work is an “organological inquiry” on the following musicians or bands: Robert Henke, Alex Augier, Brain Damage, High Tone, Pierre Jodlowski, Jesper Nordin, John MacCallum and Teoma Naccarato, Nicolas Mondon, Greg Beller, and the Unmapped collective. The ethnographic method sheds a light on the use of music technologies at different stages of the creative process: conceptualization of the work, technical collaboration, the making of the music and its performance. From this analysis of musical activity captured through instrumental configurations, we offer a typology of electronic music instruments, based on a gestural criterion, which is the only residual aspect of the acoustic instrumental interaction model. The corporeal activity leads to organise the material diversity of music technologies, as well as it constitutes a strategic way to express instrumental interaction
Mascaró, Oliver Miquel. "Expresión de emociones de alegría para personajes virtuales mediante la risa y la sonrisa." Doctoral thesis, Universitat de les Illes Balears, 2014. http://hdl.handle.net/10803/145970.
Повний текст джерелаL'animació facial és un dels tòpics encara no resolts tant en el camp de la interacció home màquina com en el de la informàtica gràfica. Les expressions d'alegria associades a riure i somriure són pel seu significat i importància, part fonamental d'aquests camps. En aquesta tesi es fa una aproximació a la representació dels diferents tipus de riure en animació facial alhora que es presenta un nou mètode capaç de reproduir tots aquests tipus. El mètode es valida mitjançant la recreació de seqüències cinematogràfiques i mitjançant la utilització de bases de dades d'expressions facials genèriques i específiques de somriure. Addicionalment es crea una base de dades pròpia que recull els diferents tipus de rialles classificats i generats en aquest treball. D'acord a aquesta base de dades pròpia es generen les expressions més representatives de cadascuna de les rialles i somriures considerades en l'estudi.
Nowadays, facial animation is one of the most relevant research topics still unresolved both in the field of human machine interaction and in the computer graphics. Expressions of joy associated with laughter and smiling are a key part of these fields mainly due to its meaning and importance. In this thesis an approach to the representation of different types of laughter in facial animation is done while a new method to reproduce all these types is proposed. The method is validated by recreating movie sequences and using databases of generic and specific facial smile expressions. Additionally, a proprietary database that lists the different types of classified and generated laughs in this work is created. According to this proprietary database the most representative of every smile expression considered in the study is generated.
Lou, Hui. "Acquiring 3D Full-body Motion from Noisy and Ambiguous Input." Thesis, 2012. http://hdl.handle.net/1969.1/ETD-TAMU-2012-05-11159.
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