Dissertations / Theses on the topic 'Hands-free system'
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Chang, Matthew (Matthew J. ). "Hands free : a wearable in-air gesture recognition system." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/112819.
Full textThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 38-39).
In this thesis I present my work in developing a wearable gesture interface for mobile devices with limited sensing capabilites. The proposed method utilizes a novel form of color invariant processing to augment traditional convolutional neural networks for gesture recognition. This techniques allows the system to perform color invariant recognition avoiding traditional issues with hand segmentation. Using this method several demo applications were prototyped on a mobile phone platform to test its real-time efficacy. Through a preliminary user study we confirmed that this method allows static gesture recognition in a wide variety of mobile scenarios.
by Matthew Chang.
M. Eng.
Haase, Peter H. "Design of a low power embedded microprocessor for a hands-eyes-ears-free personal navigation and communications system." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2000. http://handle.dtic.mil/100.2/ADA380986.
Full textThesis advisor: Fouts, Douglas J. "June 2000." Includes bibliographical references (p. 107-108). Also available online.
Wung, Jason. "A system approach to multi-channel acoustic echo cancellation and residual echo suppression for robust hands-free teleconferencing." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/53384.
Full textТвердохлєбова, Наталя Євгеніївна, and С. Д. Євтушенко. "Забезпечення безпеки учасників спортивних змагань." Thesis, Національний технічний університет "Харківський політехнічний інститут", 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/38886.
Full textModern stadiums must match the strict requirements for safety during sports competitions. The main requirement that must be met is the creation of an object that is safe for all participants, be it spectators, match participants, officials, media representatives, service personnel.
Bellini, Federico. "Il sistema Trauma Tracker - individuazione e analisi di parametri vitali acquisiti da monitor multiparametrico." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/11898/.
Full textТвердохлєбова, Наталя Євгеніївна, and Степан Дмитрович Євтушенко. "Організація системи безпеки на стадіонах." Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/47827.
Full textModern stadiums must match the strict requirements for safety during sports competitions. The main requirement that must be met is the creation of an object that is safe for all participants, be it spectators, match participants, officials, media representatives, service personnel.
Kandade, Rajan Vasudev [Verfasser]. "Speech Enhancement in Hands-free Systems for Automobile Environments / Vasudev Kandade Rajan." Aachen : Shaker, 2017. http://d-nb.info/1138176745/34.
Full textJung, Marc-André [Verfasser]. "Contributions to Wideband Hands-free Systems and their Evaluation / Marc-André Jung." Aachen : Shaker, 2018. http://d-nb.info/1162794038/34.
Full textOjerinde, Oluwaseun A. "Interaction of antenna systems with human body." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/16320.
Full textMelo, Forchu Midou. "The design of a hands-free speech recognition application during the intrapartum stage." Thesis, Cape Peninsula University of Technology, 2015. http://hdl.handle.net/20.500.11838/2416.
Full textUnlike the developed nations, the health sector within the developing countries is faced with the triple challenges of human, financial and technological scarcity of resources. This insufficiency of resources results into amongst other intrapartum mishaps. To ameliorate some of these conditions, the World Health Organization (1994) promoted the use of the pathogram as an informative and data capturing tool that could help reduce intrapartum mishaps. The usage of the partogram within the intrapartum environment also introduced a dilemma as birth attendants spent quite a good amount of time using their eyes and hands (in pen and paper) capturing medical data onto the partogram instead of investing these resources onto the expectant mother and or fetus. This study adopted Design Science Research as a suitable research approach, strengthened by a pragmatic philosophical standpoint. This study involved the following methods; • A review of literature in the intrapartum environment, along with topics from relevant reference disciplines including speech recognition • A series of semi-structured contextual interviews with birth attendants, student nurses and senior midwives • A design science research study using the knowledge from the reference disciplines to design a hands-free voice driven epartogram • A simulation of the capturing of intrapartum data to evaluate and refine the prototype (epartogram) by applying anonymized intrapartum data driven by natural speech • An evaluation of the artifact (epartogram) based on a number of published guidelines recommended by scholars to demonstrate its potential utility as well as to establish if the solution is generic to the contextual environment. Although the introduction of ICT into the problem domain abetted the process of data capturing (specifically the referral process), the fundamental aspect of using the prototype to free the hands and eyes of the birth attendants proved challenging due to issues with the recognition of natural speech by speech recognition systems and background noise. Monitoring of MOU and the referral process from a lower MOU to a higher one could benefit a great deal from this study as the prototype thrived well in that regard. Natural speech recognition by machines in an uncontrolled environment is still at its infancy (some of the most powerful engines can not differentiate between background noise and direct instruction). Not withsatnding the challenges posed by the infancy of speech recognition, the artifact showed potential as a manual epartogram providing spatial access to multiple participating MOU via the cloud.
Jung, Marc-André Verfasser], and Tim [Akademischer Betreuer] [Fingscheidt. "Contributions to Wideband Hands-free Systems and their Evaluation / Marc-André Jung ; Betreuer: Tim Fingscheidt." Braunschweig : Technische Universität Braunschweig, 2018. http://d-nb.info/1175815209/34.
Full textJung, Marc-André [Verfasser], and Tim [Akademischer Betreuer] Fingscheidt. "Contributions to Wideband Hands-free Systems and their Evaluation / Marc-André Jung ; Betreuer: Tim Fingscheidt." Braunschweig : Technische Universität Braunschweig, 2018. http://nbn-resolving.de/urn:nbn:de:gbv:084-2018062712277.
Full textGoetze, Stefan [Verfasser]. "On the Combination of Systems for Listening-Room Compensation and Acoustic Echo Cancellation in Hands-Free Teleconference Systems / Stefan Goetze." Aachen : Shaker, 2014. http://d-nb.info/1060623382/34.
Full textMa, Hsu-Hao, and 馬珝皓. "OmniKinect: Hands-free Appliances Control System." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/39285143353257579501.
Full text銘傳大學
資訊傳播工程學系碩士班
100
Microsoft released the Kinect in 2010. It can capture the user’s depth information and use the body to replace the traditional remote control machine, so every player can feel unprecedented entertainment experience. Kinect is reasonable and powerful, so it is attractive to a lot of developers in industry or researchers to develop innovated applications. The Kinect sensor has the limitation in the detection angle and range. If user will want to control many appliances, every appliance must prepare its dedicated device. According to this research, it only needs one Kinect that can control many appliances. Besides, this research uses an Arduino as IR LED controller to send remote control signals to operate machine. So user can use his hands to replace the remote control at home. Therefore, Kinect and Arduino can let our life be simple. When a user enters the sensing area, our system can detect the human skeleton by Microsoft Kinect SDK. Our system can also calculate the 3D transform to recover user''s pose. If the user raises his hand to point at an appliance, he can specify that device to power on/off and use his gestures to control it. Four gestures are also defined for the most important control signals such as forward, backward, up and down. Our system can also extend to eight gestures for extra commands including escape command. The control system, without traditional remote controller on hand, can make the appliances control easier in digital home.
王天一. "A Study of Man-Machine System Design in Mobile Phone Hands Free Car Kit." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/92342162069903814829.
Full text大葉大學
工業設計研究所
86
This essay is a study of the man-machine system in the mobile phone hands free car kit. According the relationship of man, machine, environment in the man-machine system. Studying the interactions between drivers and the mobile phone hands free car kit, the interior of cars and the mobile phone hands free car kit, drivers and the interior of cars. The methods of the study are experiment and interview to increase the effecting by each other. The first step of research is detecting the user requires and user satisfactions by questionnaire. Next is according the product desigh appraisement to make another interview questionnaire. In order to understand the opinions about the product in market by designer. After join the two results of study and product analysis. Than start to design a new prototype. This new prototype will test by user satisfaction again to prove the respects of this research. Finally, the result of the research shows that new prototype is indeed more advance in study items. At the end, this essay provide the conclusion, advises, and the specifications of new design prototype.
Paik, Soonkwon. "Near-field microphone array design for a hands-free system in a vehicle by using the nash genetic algorithm." Thesis, 2005. http://hdl.handle.net/2152/2329.
Full textLin, Shih-Lin, and 林似霖. "Improvement of Sound Quality in Vehicular Hands-Free Communication Systems." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/20530623669473112537.
Full text大葉大學
車輛工程學系碩士班
92
For a vehicular hands-free communication system, the sound quality of communication is usually degraded by background noise such as engine noise and aerodynamic noise which are known to be detrimental to system performance. In this report, a novel adaptive filtering algorithm and an integrated system for acoustic echo and noise cancellation are presented. The proposed system includes adaptive noise cancellation, line enhancer, and echo cancellation which are based on a novel variable step-size affine-projection algorithm (VSS APA). The proposed VSS APA filtering algorithm is a combination of a variable step-size least-mean-square (VSS LMS) and an affine-projection algorithm (APA). The input signal in the APA is structured as a matrix, which is more complete than the vector structure in other algorithms. As a result, the estimation of the weight vector has orthogonality, thus allowing quick and accurate error corrections. However, the step-size of the APA is invariable. The choice of the step-size affects the overall performance of the algorithm. The variable step-size of the proposed VSS APA can adjust itself automatically to reach an optimum step-size according to the operations of the system at different times. To understand and verify the effectiveness of the proposed system, a performance evaluation and comparison were conducted to compare the proposed algorithm and various traditional adaptive filtering algorithms in this application. The results demonstrated that the VSS APA has an effective performance and convergence in sound quality improvement of hands-free communication systems.
Wu, H. Z., and 吳欣儒. "Echo Cancellation and Noise Control in Hands-free Communication systems." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/85107860078083571190.
Full text國立交通大學
電信工程系
88
Hands-free communication systems usually suffer from echo and environment noise. They exacerbate the communication quality. In this thesis, we present a unified approach of echo cancellation and noise control systems which are categorized into two classes. A new parallel structure is also proposed. We analyze and compare the residual error of both parallel and cascade structures. The theoretical analysis and the computer simulations show that the parallel structure has larger convergent ERLE than the cascade structure. We propose the implementation of impulse response measurements and suggest the subbanding parallel structure of echo and noise cancellation in a car chamber. This accelerates convergence rate and reduces the computation complexities.
Hsyu, Ming-Tsong, and 徐明聰. "A Research on Acoustic Noise and Echo Cancellation in Hands-free Communication Systems." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/55489642625329521737.
Full text元智大學
電機工程研究所
88
Hands-free communication systems find several applications such as hands-free telephone set, tele-video conferencing systems, distance learning and medicine systems. The related problems have been researched in recent years hoping to find a solution not only effective but also not so expensive. The purpose of this thesis is to study the major problems in such systems. We present a background introduction first. Then we discuss other topics including system modeling, adaptive algorithms, stereophonic acoustic echo cancellation, double talk detection, twin-filter structure, combined acoustic noise and echo cancellation, performance evaluation of acoustic echo controllers. Finally we collect several domestic studies. It is our goal that the thesis may become a handbook of studying in hands-free communication systems and will be helpful to the development of a good solution.