Дисертації з теми "Facial reconstructions"
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Abdou, Dalia Ahmed Selim Ali. "Three dimensional (3D) forensic facial reconstruction in an Egyptian population using computed tomography scanned skulls and average facial templates : a study examining subjective and objective assessment methods of 3D forensic facial reconstructions." Thesis, Queen Mary, University of London, 2018. http://qmro.qmul.ac.uk/xmlui/handle/123456789/41763.
Повний текст джерелаHunt, Cahill. "Developing an efficient method for generating facial reconstructions using photogrammetry and open source 3D/CAD software." Thesis, Hunt, Cahill (2017) Developing an efficient method for generating facial reconstructions using photogrammetry and open source 3D/CAD software. Masters by Coursework thesis, Murdoch University, 2017. https://researchrepository.murdoch.edu.au/id/eprint/39826/.
Повний текст джерелаSointula, Anna. "Ancient Human Reconstructions and aDNA : Is there an ethical dilemma?" Thesis, Uppsala universitet, Arkeologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-417058.
Повний текст джерелаUnder de senaste åren har arkeogenetiska studier diskuterats allmänt i populära media och de har väckta väckts många frågor speciellt kring kulturell identitet och etnicitet. Denna studie diskuterar rekonstruktioner baserat på forntida mänskliga kvarlevor och hur de är relaterade till den nuvarande akademiska hegemonin och den politiska omständigheter i Europa. Människor i Storbritannien har reagerat särskilt starkt på rekonstruktionen av Cheddar-mannen, utställd i ”Natural History Museum” i London. Med utgångspunkt i denna och ytterligare några rekonstruktioner av forntida individer analyseras etiska frågor bakom mänskliga rekonstruktioner och hur museer och populära medier ska hanterar frågor om kulturarv, mänskligt ursprung och identitet.
Clarke, Carrie Anna-Marie. "Facial fatness as a complicating factor in facial reconstruction." Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/15484.
Повний текст джерелаAlthough it is a reasonable assumption that a significant proportion of the variation in facial tissue thicknesses comes from anatomical differences between populations, we do not know how much of normal variation is caused by including the full range of individual obesity or slimness. Current population standard soft tissue thickness data used in facial reconstructions ignores the variation between individuals which, in theory, could be greater than the variation between populations or sexes. The aim of this study was to test if facial tissue thickness is due to the amount of sub - cutaneous fat, sex or racial origins. Methods currently used do not give a true reflection of the individual because they ignore the variation in fatness. An initial study determined if a corrective value for the non - linear distortion found between radiographic images and the physical tissues was needed. This was done by imaging cadaver heads and taking measurements from the images and the physical heads. The results demonstrated that measurements taken from LODOX® images are analogous with soft tissue measurements. Volunteers were then sought from the student body and had physical measurements and X - rays taken. The measurements allowed for both BMI and body fat percentage to be calculated. Analysis showed that body fat percentage had less of an impact than BMI, with the areas of the face most affected by change in fatness being around the chin, jaw and cheek. Analysis of the variances showed that fatness has a low impact on the soft tissues of the different ancestry groups, while having a greater impact on the soft tissues of the different sexes. The effect of changing fatness on the soft tissues is not seen in all areas of the face, but to ignore it in facial reconstruction ignores that the success of a reconstruction is not exactness but in its ability to incite recognition and lead to potential identification of the unknown target individual.
Zatezalo, Kayla M. "RECONSTRUCTING THE PAST: AN EXPLORATION OF THE FORENSIC FACIAL RECONSTRUCTION PROCESS FOR A PREHISTORIC PUEBLO MALE." Kent State University Honors College / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ksuhonors1462803254.
Повний текст джерелаMichael, S. D. "Volumetric facial reconstruction for foreign identification." Thesis, Swansea University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.638189.
Повний текст джерелаNunez, Castaneda José, and Grozo Silvana Chang. "Facial reconstruction according to aesthetic units." Wolters Kluwer Medknow Publications, 2020. http://hdl.handle.net/10757/655509.
Повний текст джерелаRevisión por pares
Rautenbach, Pieter Albertus. "Facial Feature Reconstruction using Structure from Motion." Thesis, Link to the online version, 2005. http://hdl.handle.net/10019/1340.
Повний текст джерелаLiang, Haidong. "Facial soft tissue 3D modelling." Thesis, University of Surrey, 1999. http://epubs.surrey.ac.uk/842802/.
Повний текст джерелаBoddupalli, Hari Kiran G. "Tissue thickness measurement tool for craniofacial reconstruction." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=1206.
Повний текст джерелаTitle from document title page. Document formatted into pages; contains vii, 106 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 97-98).
Andersson, Björn, and Martin Valfridsson. "Digital 3D Facial Reconstruction Based on Computed Tomography." Thesis, Linköping University, Department of Science and Technology, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2862.
Повний текст джерелаDespite the introduction of DNA-analysis for identification of human remains (1997-2000) several cases exist where the deceased remain unidentified. Approximately ten percent of unknown deceased persons can not be identified by dental status or other present methods. During the year 2003 alone, seven individuals, in Sweden, remain unidentified.
Increase in travel in Europe will lead to more discoveries of foreign human remains in Sweden. In these cases, dental and medical records are often unavailable for the identification process. When reconstructing a face from a skull, a technique with so called landmarks is used. These landmarks define the distance between the skull and the skin.
Today the reconstruction is performed by a forensic artist applying modelling clay to a cast of the skull according to the placement of the landmarks. This method is considered unethical since it involves manipulation of the skull. Another drawback with this method is that it is very time consuming and changes and modifications of the model are hard to do.
This thesis presents the possibilities of digitally, in 3D, reconstructing deceased persons'faces based on computed tomography of skulls. This is done by presenting our PC based 3D modelling tool that we have implemented in Discreet 3ds max. By developing and testing our software we have shown that digital 3D facial reconstruction can be performed by acquiring data from CT and performing the reconstruction process in 3ds max withhelp from our software.
Wang, Jing. "Reconstruction and Analysis of 3D Individualized Facial Expressions." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32588.
Повний текст джерелаAlvi, O. "Facial reconstruction and animation in tele-immersive environment." Thesis, University of Salford, 2010. http://usir.salford.ac.uk/26547/.
Повний текст джерела鄭健城 and Kin-shing Dominic Cheng. "Studies on facial surface reconstruction from image correspondence." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31224131.
Повний текст джерелаCheng, Kin-shing Dominic. "Studies on facial surface reconstruction from image correspondence." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22925958.
Повний текст джерелаGonzalez-Figueroa, America. "Evaluation of the optical laser scanning system for facial identification." Thesis, University of Glasgow, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301602.
Повний текст джерелаXiang, Guofu. "Automatic 3D facial modelling with deformable models." Thesis, Robert Gordon University, 2012. http://hdl.handle.net/10059/807.
Повний текст джерелаQuatrehomme, Gérald. "Reconstruction faciale : intérêt anthropologique et médico-légal." Bordeaux 1, 2000. http://www.theses.fr/2000BOR10616.
Повний текст джерелаElyan, Eyad, and Hassan Ugail. "Reconstruction of 3D human facial images using partial differential equations." Academy Publisher, 2007. http://hdl.handle.net/10454/2644.
Повний текст джерелаHornsey, Elizabeth. "At Face Value: Facial Difference, Facial Reconstructive Surgery and Face Transplants in Literature and Other Texts." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1627661976152915.
Повний текст джерелаRotger, Moll Gemma. "Lifelike Humans: Detailed Reconstruction of Expressive Human Faces." Doctoral thesis, Universitat Autònoma de Barcelona, 2021. http://hdl.handle.net/10803/671306.
Повний текст джерелаDesarrollar personajes digitales similares a los humanos es un reto, ya que los humanos estamos acostumbrados a reconocernos entre nosotros y a encontrar a los CGI poco humanos. Para cumplir con los estándares de las producciones de videojuegos y películas digitales, es necesario modelar y animar a estos personajes de la manera más parecida posible a los humanos. Sin embargo, es una tarea ardua y costosa, ya que se requiere a muchos artistas y especialistas trabajando en un solo personaje. Por lo tanto, para cumplir con estos requisitos, encontramos la creación automática de CGIs detallados a través de setups económicos una opción interesante para estudiar. En este trabajo, desarrollamos técnicas novedosas para conseguir personajes detallados combinando diferentes aspectos que se destacan al desarrollar el realismo como detalles de la piel, pelos faciales, expresiones y microexpresiones. Examinamos cada una de las áreas mencionadas con el objetivo de recuperar cada una de las partes automáticamente sin interacción del usuario ni datos para el aprendizaje. Estudiamos los problemas buscando su robustez, pero también la simplicidad de la configuración, prefiriendo soluciones que requieren una sola imagen con iluminación no controlada y cálculos que pueden obtenerse con la comodidad de un ordenador portátil estándar. Una cara detallada con arrugas y detalles de la piel es vital para desarrollar un personaje realista. En este trabajo, presentamos nuestro método para describir automáticamente las arrugas faciales en la imagen y transferirlas a la cara base recuperada. Luego proponemos la recuperación del vello facial resolviendo un problema de ajuste de parámetros con un nuevo modelo de vello facial parametrizable. Por último, introducimos una función de mapeo que permite transferir expresiones y microexpresiones entre diferentes mallas, lo que proporciona animaciones realistas a nuestra cara detallada. Cubrimos todos los puntos mencionados con el enfoque puesto en aspectos clave como (i) cómo describir las arrugas faciales de una manera simple y directa, (ii) cómo recuperar 3D a partir de las detecciones 2D, (iii) cómo recuperar y modelar el vello facial de 2D a 3D, (iv) cómo transferir expresiones entre modelos que contienen tanto el detalle de la piel como el vello facial, (v) cómo realizar todas las acciones descritas sin datos de entrenamiento ni interacción del usuario. En este trabajo, presentamos nuestras propuestas para resolver estos aspectos con una configuración eficiente y simple. Validamos nuestro trabajo con varios conjuntos de datos, tanto sintéticos como reales, demostrando resultados notables incluso en casos desafiantes como oclusiones por gafas, barbas densas y, incluso, trabajando con diferentes topologías faciales como cíclopes de un solo ojo.
Developing human-like digital characters is a challenging task since humans are used to recognizing our fellows, and find the computed generated characters inadequately humanized. To fulfill the standards of the videogame and digital film productions it is necessary to model and animate these characters the most closely to human beings. However, it is an arduous and expensive task, since many artists and specialists are required to work in a single character. Therefore, to fulfill these requirements we found an interesting option to study the automatic creation of detailed characters through inexpensive setups. In this work, we develop novel techniques to bring detailed characters by combining different aspects that stand out when developing realistic characters, skin detail, facial hairs, expressions, and microexpressions. We examine each of the mentioned areas with the aim of automatically recover each of the parts without user interaction nor training data. We study the problems for their robustness but also for the simplicity of the setup, preferring single-image with uncontrolled illumination and methods that can be easily computed with the commodity of a standard laptop. A detailed face with wrinkles and skin details is vital to develop a realistic character. In this work, we introduce our method to automatically describe facial wrinkles on the image and transfer to the recovered base face. Then we advance to the facial hair recovery by resolving a fitting problem with a novel parametrization model. As of last, we develop a mapping function that allows transfer expressions and microexpressions between different meshes, which provides realistic animations to our detailed mesh. We cover all the mentioned points with the focus on key aspects as (i) how to describe skin wrinkles in a simple and straightforward manner, (ii) how to recover 3D from 2D detections, (iii) how to recover and model facial hair from 2D to 3D, (iv) how to transfer expressions between models holding both skin detail and facial hair, (v) how to perform all the described actions without training data nor user interaction. In this work, we present our proposals to solve these aspects with an efficient and simple setup. We validate our work with several datasets both synthetic and real data, prooving remarkable results even in challenging cases as occlusions as glasses, thick beards, and indeed working with different face topologies like single-eyed cyclops.
Nardoni, Chiara. "Mesh deformation strategies in shape optimization. Application to forensic facial reconstruction." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066248/document.
Повний текст джерелаThis thesis is devoted to the conception, the development and the analysis of mesh deformation strategies for shape modeling, processing and comparison -as shape matching and surface reconstruction- and, in a rather independent concern, for devising a robust computational method for facial reconstruction. Facial reconstruction is about the estimation of a facial shape from the sole datum of the underlying skull and is a challenging problem in anthropology and forensic science. The main contribution of the thesis is the design of a novel method for shape matching, borrowing techniques from the shape optimization context. Under the sole assumption that the two shapes share the same topology, the desired mapping is achieved as a sequence of elastic displacements by minimizing an energy functional based on a signed distance function. Several numerical examples are presented to show the efficiency of the method.Also, a novel method for generating a closed surface mesh model of an initially non-closed source mesh model is developed. The method relies on an original PDE-based mesh evolution technique. A template shape is iteratively deformed, producing a sequence of shapes that get 'closer and closer' to the source triangulation.The second part of the manuscript deals with the development of a landmark-free, fully automated method for digital facial reconstruction. Based on techniques of continuous deformation as 'morphing' and 'warping', the proposed approach is integrated with anthropological assumptions and mechanical models
Guyomarc'h, Pierre. "Reconstitution faciale par imagerie 3d : variabilité morphométrique et mise en oeuvre informatique." Thesis, Bordeaux 1, 2011. http://www.theses.fr/2011BOR14354/document.
Повний текст джерелаFacial approximation aims at the production of a face based on the skull morphology. This technique is performed in forensic anthropology to bring new testimonies in cases of human remains identification. The goals of this research are to establish a database of French skulls and faces in 3D through medical imaging, to test traditional guidelines, and to quantify the morphological correlations between soft and hard tissues. Computed tomography exams, collected in French hospitals (18 – 96 years; sex ratio 1.16:1), were treated with TIVMI software to reconstruct accurately the bone and skin surfaces. More than 200 landmarks have been placed on 500 subjects, following a protocol which repeatability and reproducibility have been checked. The extraction of Euclidian distances allowed testing traditional guidelines, and studying specificity and variability of soft tissue depths. In parallel, the 3D coordinates were analyzed with geometric morphometrics. Covariations between groups of bone landmarks and groups of skin landmarks were quantified, along with asymmetry, allometry, and influences of age and sex on the shape changes. These results allowed for the creation of a method to estimate the position of skin landmarks, and for the development of a facial approximation module in TIVMI, called AFA3D (in collaboration with the LaBRI). Based on the warping of a synthetic face, this software renders the most probable face depending on the position of 78 cranial landmarks
Ping, Xiaomeng. "Model-based enhancement of moving facial images." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0002/MQ42421.pdf.
Повний текст джерелаBeaini, Thiago Leite. "Espessura de tecidos moles nos diferentes tipos faciais: estudo em tomografias computadorizadas cone-beam." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/23/23153/tde-28032014-160826/.
Повний текст джерелаForensic facial reconstruction (FFR) is a research field that intends to estimate the face of an individual through a skull. Mean soft tissue thickness values, of different cranial landmarks, often obtained through needle puncture, are used as references. Lately, some digital methods, such as Magnetic resonance and Fan-beam Computer Tomography have been offering new resources to forensic analysis. Cone-Beam Computer Tomography (CBCT), differs from others, by allowing the volumetric acquisition of a sitting patient. In the study of occlusion and orthodontic, is usual to associate volume and functional features to different facial types, therefore the objective is to establish a CBCT soft tissue measuring method, for points used for FFR, verifying the existence of significant differences of soft tissue pattern in distinct facial types. A guideline was created to allow observers to measure soft tissue of 32 landmarks (10 sagittal and 11 bilateral), usually found in FFR researches. Precision was accessed through landmarks placing tests in 5 exams, inter-observers and intraobservers intraclass correlation in 10 exams. The use of the software Osirix® was supported by the comparison with Nemotec® in 25 exams. Visual tests were performed through a computer tomography from a skull with resin spheres placed through the manual approach. The 100 subject sample were divided into gender and then into vertical facial types of long face (LF), short face (SF) and normal face (NF), and in horizontal types: CL I, II, III. Normality statistical tests were applied and the difference between groups was tested. The sample was divided in 50 men: 13 NF, 29 LF, and 10 SF, as 20 were Class I, 14 CL II and 16 CL III. The 50 women were divided into 16 NF, 24 LF and 10 SF, as 24 were Class I, 18 CL II and 8 CL III. The method was considered adequate, as after little calibration was needed to allow observers to place landmarks with similar precision. The mean intraclass correlation was considered strong between software (0.75) and observers (0.8), and very strong on intra-observer (0.9). Visual tests pointed out good level of coincidence between manual and digital methods with advantage to the digital due to the available computer tools. The average measures differed between male and female gender, as thicker depths were observed in men in all landmarks, with exception to the Lateral Orbits. The small amount of difference, observed among facial types was considered insufficient to sustain the use of new reference charts. Nevertheless, morphological features could be noticed, especially among male subjects. The depth of landmarks placed over the mandible presented statistical differences, demonstrating that class III, and or long face facial types have less tissue in those areas than class II and short-faced patients.
Zeilmann, Patrícia Pereira. "Avaliação da acuracidade da reconstrução facial 3D por meio de fotografias antemortem de indivíduos previamente identificados." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/23/23153/tde-28032014-201941/.
Повний текст джерелаThe aim of this study was to evaluate, by comparison with antemortem photographs, the accuracy of manual and computerized forensic facial reconstruction of adult Brazilians using the Manchester method. The faces were reconstructed from 08 skulls, 04 female and 04 male that were exhumed at the Municipal Cemitery Necropolis of Campo Santo-Guarulhos/Sao Paulo. This study is justified to allow the use of the Manchester method considering the soft tissue depths from Brazilian people. Eight plaster replicas made for manual reconstructions and eight 3D virtual models, obtained by tomography for computerized were taken to the Centre for Anatomy and Human Identification at the University of Dundee/Scotland/UK. Clay was used for the manual and the SensAble technology through the FreeForm Modeling Plus software and the tactil device Phantom Haptic Desktop for the computerized. The accuracy of 16 reconstructions resulting was evaluated by two methods: images of the reconstructions were produced and shown to 100 volunteers who were asked to choose the subject of photography in vivo when included with other five subjects randomly selected; and by the resemblance test, comparing the photograph of the reconstruction with the subject\'s target side by side, which was also done with two control subjects. Although in both tests the 08 subjects achieved the best results in the number of correct answers and in the degree of resemblance, the manual reconstruction achieved a better performance and the higher level of accuracy in one case was 90% in recognition test, while the computerized was 81%. This study showed that the Manchester method in Brazilians, as well as the FreeForm Modeling Plus are usefull and adequate tools for use in facial reconstruction with very significant levels of success.
BENGUIGUI, CLAUDE. "Reconstruction maxillo-faciale par lambeaux libres apres exerese carcinologique." Angers, 1993. http://www.theses.fr/1993ANGE1079.
Повний текст джерелаNiloofar, Aghayan. "Reconstruction of Complete Head Models with Consistent Parameterization." Thèse, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/30914.
Повний текст джерелаLee, Won-Joon. "Cross-race effect on forensic facial reconstruction and recognition of reconstructed faces." Thesis, University of Dundee, 2012. https://discovery.dundee.ac.uk/en/studentTheses/72dcfcd8-e538-4d3b-98d3-b2c3425c8043.
Повний текст джерелаYu, Lap Fai. "3D reconstruction and synthesis of facial expressions using a manifold alignment framework /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?CSED%202009%20YU.
Повний текст джерелаKalinkina, Daria. "Suivi automatique de visage dans une séquence vidéo." Paris 6, 2009. http://www.theses.fr/2009PA066741.
Повний текст джерелаHuman faces are one of the most researched topics in the domains of both computer graphics and computer vision. This thesis addresses the problem of 3D face tracking from standard video sequences and proposes an approach based upon computer vision/computer graphics collaboration techniques to recover face position and expression in each video frame. Precision of tracking being of major importance, we use a model-based approach with a model adapted to the specific tracked face, and an animation layer built over it. This work consists of three different parts. We start by investigating the possible ways of creation of a customized face model and propose an efficient markerless method for face reconstruction using only a small set of images driving the morphological deformation of a predefined generic mesh. The main focus in tracking is made on precise detection of facial expressions. In this context, several approaches to facial animation are presented: a pseudomuscular approach and a method based on MPEG-4 specification. Based upon these animation systems we developed a hybrid technique by combining them in a hierarchical manner, which allows us to benefit from strong points of both. Finally, in the third and last part we present our tracking technique that allows to obtain the 3D pose and expression of a face in a video sequence without any interaction of the user, except at the initialization stage (first image)
Kundu, Sangeeta J. "Facial strain maps as a biometric source." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001280.
Повний текст джерелаKe, Jin, and 柯金. "Transgenic stem cells for craniofacial bone reconstruction." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B44362973.
Повний текст джерелаpublished_or_final_version
Dentistry
Doctoral
Doctor of Philosophy
Fernandes, Clemente Maia da Silva. "Análise das reconstruções faciais forenses digitais caracterizadas utilizando padrões de medidas lineares de tecidos moles da face de brasileiros e estrangeiros." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/23/23148/tde-03072010-103917/.
Повний текст джерелаThe concern with the identification, that is the process by which the identity is determined, is quite old. Currently, the social relations or civil, criminal, administrative and commercial requirements need its evidence. The identification of deceased persons is essential not only to assuage the emotional needs of their friends and family, but also to allow legal actions related to death. Unfortunately, situations often occur when bodies arrive at the Medico-Legal Institutes in a state of putrefaction or skeletonization, and are not identified. In such situations, anthropometric analysis to estimate, for example, age, gender and height, are of great value. In these cases, forensic facial reconstruction is very important because it may serve to recognize and therefore increase the chances of identification. The three-dimensional forensic facial reconstruction can be manual or digital. The digital forensic facial reconstruction was made possible with the advent of Information Technology, medical imaging and new 3D image and reconstruction softwares. To perform facial reconstruction, data on the thickness of the soft tissues of the face are necessary. There is no literature records of facial reconstruction works carried out with digital data of soft tissues obtained from samples of Brazilian subjects. There are two tables of thickness of soft tissue published for the Brazilian population: one obtained from measurements performed in fresh cadavers (fresh cadavers pattern), and another from measurements on magnetic resonance imaging (magnetic resonance pattern). The aim of this study was to perform three different characterized digital forensic facial reconstructions (with hair, eyelashes and eyebrows) of a Brazilian subject (based on an international pattern and two national patterns for soft facial tissue thickness), and evaluate the digital forensic facial reconstructions comparing them to photos of the individual and other nine subjects. We used DICOM images of a computed tomography (CT) donated by a volunteer that, once converted, were used for the realization of the digital facial reconstructions. Once we\'ve performed the three reconstructions, they were compared with photographs of the volunteer who had his face reconstructed and of nine other subjects. Thirty examiners participated in this recognition attempt. The target subject, who had his face reconstructed, was recognized by 26.67% of the examiners in the reconstruction performed with the national Magnetic Resonance Pattern, 23.33% in the reconstruction performed with the national Fresh Cadavers Pattern of and 20.00 % in the reconstruction performed with the International Pattern, and the target-subject was the most recognized subject in the first two patterns. The correct recognitions of the subject indicate that the digital forensic facial reconstruction, carried out with parameters used in this study, may be a useful tool, with one or more subjects recognized to achieve a positive identification.
Strapasson, Raíssa Ananda Paim. "Aproximação facial forense: relação entre as estruturas ósseas e a porção inferior do nariz." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/23/23153/tde-24052016-115026/.
Повний текст джерелаThe aim of this study was to evaluate the relationship between the alar cartilage and the pyriform aperture using cone-beam computed tomography (CT) imaging, and the relationship between the morphology of the nose and the vertical skeletal pattern of the face. 96 images of subjects (49 male and 47 female), aged 18-65 years classified according to the vertical skeletal pattern of the face were used in this study. The OsiriX software was used to measure the structures of interest. The facial pattern was obtained according to three techniques: facial index, gonial angle, and facial proportions. From an axial section of the CT imaging, four measurements were performed: nasal width, distance between the alar insertions, extension of the base of the pyriform aperture and width of the pyriform aperture. All measurements were obtained by two calibrated examiners. There is correlation between the nasal width and the breadth of the pyriform aperture, and between the base of the nasal cavity and the distance between the alar insertions. The width of the pyriform aperture proportionally increases more than the nasal breadth. Furthermore, the long face type is associated with nasal width.
Atuhaire, Felix. "Reconstruction of three-dimensional facial geometric features related to fetal alcohol syndrome using adult surrogates." Master's thesis, Faculty of Health Sciences, 2020. http://hdl.handle.net/11427/32579.
Повний текст джерелаBarré, Sébastien. "Modélisation, fusion et reconstruction 3D pour l'aide à la chirurgie maxillo-faciale." Poitiers, 2001. http://www.theses.fr/2001POIT2264.
Повний текст джерелаKermi, Adel. "Reconstructions faciales à partir d'images tridimensionnelles de crânes humains par recalage et modèle déformable pour l'identification de personnes." Phd thesis, Télécom ParisTech, 2008. http://pastel.archives-ouvertes.fr/pastel-00004311.
Повний текст джерелаMiranda, Geraldo Elias. "Avaliação da acurácia e da semelhança da reconstrução facial forense computadorizada tridimensional e variação facial fotoantropométrica intraindivíduo." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/23/23153/tde-05112018-125105/.
Повний текст джерелаThis thesis contains three chapters. The aim of the first chapter was to evaluate the accuracy and recognition level of three-dimensional (3D) computerized forensic craniofacial reconstruction (CCFR) performed in a blind test on open-source software using computed tomography data from live subjects. The CCFRs were completed using Blender® with 3D models obtained from the computed tomography data and templates from the MakeHuman® program. The evaluation of accuracy was carried out in CloudCompare®, by geometric comparison of the CCFR to the subject 3D face model (obtained from the CT data). A recognition level was performed using the Picasa® with a frontal standardized photography. The results were presented from all the points that form the CCFR model, with an average for each comparison between 63.20% and 73.67% with a distance -2.5 <= x <= 2.5 mm from the skin surface and the average distances were 1.66 to 0.33 mm. Two of the four CCFRs were correctly matched by the Picasa® tool. Free software programs are capable of producing 3D CCFRs with plausible levels of accuracy and recognition and therefore indicate their value for use in forensic applications. The other two chapters study the facial comparison and aimed to evaluate the facial metrical stability of an individual through photographs taken in a time interval of five years. It is a longitudinal study composed of standard frontal photographs of 666 adults divided by sex and age groups. By using the SAFF 2D® software, 32 landmarks were positioned, whose coordinates were used to calculate 40 measurements, 20 horizontal and 20 vertical. Each of these measurements was divided by iris diameter and thus iridian ratios were obtained. The results showed that most of the ratios did not suffer statistically significant variations. The ratios that had the greatest variation in the different age groups were those of the nose and mouth regions. When comparing the age groups with each other it is observed that the great majority of the reasons are different, showing the influence of age on the facial dimensions. When comparing stability with respect to sex, it was observed that there were ratios that decreased and others that increased in both sexes, while other ratios varied only in females or in males. When the sexes were compared, it was observed that the majority of the ratios were different, showing sexual dimorphism of the facial measures. The face undergoes metrical alterations throughout the life, mainly in the region of the nose and mouth, with the greatest differences seen in those who are aged 60 years and older. In addition, some facial measures are more influenced by sex than others. However, most of the measures raised have remained relatively stable within a period of five years in both sex and age groups.
Рижков, В. Є., А. О. Каймакова-Алдемір, І. М. Яловській, А. О. Печерська та В. Л. Федоренко. "Внесок вченого Михайла Герасимова в антропологію". Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/53481.
Повний текст джерелаDias, Paulo Eduardo Miamoto. "Morfologia labial de interesse para reconstrução facial forense." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/23/23153/tde-20022014-163427/.
Повний текст джерелаForensic Facial Reconstruction (FFR) is an area of Forensic Anthropology that seeks to approximate the appearance of an unknown individual by reconstructing soft tissues over ones skull after an anthropological analysis. The FFR published in the media aims at a recognition, which can trigger a process of human identification. Knowing the relationship between hard and soft tissues is crucial to increase the accuracy of FFRs. In this study, we sought to gather anthropometric information on the mouth and its proportions. Two samples were taken from a collection of CBCT scans. Sample 1 (n=327) consisted of men (n=127) and women (n=185) aged between 11 and 81 years old, divided into six age groups and verified the linear distances defined by anatomical landmarks in soft tissue: vermillion height, mouth width, the proportion between these and the possibility of estimating mouth width from the intercanine distance. Sample 2 (n=108) consisted of men (n=40) and women (n=68) aged between 20 and 81 years old, divided into three age groups, and verified the proportions between the vermilllions of the mouth, mouth width and linear distances marked in bony craniometrical landmarks. The measurements were made in OsiriX software and the results were analyzed by averages, standard deviations and differences between the averages. For sample 1, vermillion height corresponded to approximately 26% of mouth width, in both genders, with a tendency to decrease over time. Mouth width increased over time in men, and kept stable values in women. The intercanine distance corresponded to about 75% of mouth width in men, and 80% of the mouth width in women. For sample 2, the distance between the landmarks infradentale and supramentale and was on average 55% of the vermillion height in both genders, and the distance between the landmarks philtrum medium and supradentale was about 85% of the vermillion height in men and about 88% of the same measure, in women. The distance between the mental foramina was on average 97% of the mouth width in women, and 93% of this distance in men. Gathering anthropometric information on the mouth for the Brazilian population can contribute to increase the accuracy of FFRs and assist human identification.
Núñez-Castañeda, José Miguel, and Silvana Lucia Chang-Grozo. "Surgical Treatment and Reconstruction of Nasal Defects According to the Aesthetic Subunits Principles." Springer, 2021. http://hdl.handle.net/10757/655882.
Повний текст джерелаThe aim of this study was to determine the prevalence of nasal skin cancer, its location by facial aesthetic subunits and the type of reconstructive procedures performed for each nasal subunit after excision for nasal skin tumors. Observational cross-sectional study of all consecutive patients with the diagnosis of skin tumor located in the nasal unit, treated from 2018 to 2019 by the department of head and neck surgery of a general hospital. 60 patients were treated with nasal skin tumors excisions. A total of 52 patients (86,6%) had basal cell skin cancer, 7 (11,6%) had squamous cell skin cancer and 1 (1,6%) had melanoma. Fifty-nine patients (98.33%) presented a primary tumor and just 1 case (1,66%) recived a previous surgical treatment. Regardless of the type of tumor, the tip subunit was the most often involved with 29 (48,33%) cases in total. Despite of the nasal aesthetic subunit affected, the most frequent type of procedure used for reconstruction was the rotation or advancement flap, based on aesthetic nasal subunits, which was performed in 39 cases (65%). Nasal reconstruction after skin cancer can be very complex, especially since all patients have high expectations about the results. In order to achieve good results, there is a necessity for careful analysis of the defect, correct planning and excellent technical execution of the procedures Frequently, staged procedures will be needed to achieve an optimal result.
Revisión por pares
Vanezis, Maria. "Forensic facial reconstruction using 3-D computer graphics : evaluation and improvement of its reliability in identification." Thesis, University of Glasgow, 2008. http://theses.gla.ac.uk/375/.
Повний текст джерелаTheodoro, Matheus João Accoroni. "Aplicação da computação gráfica na reconstrução de face para reconhecimento: um estudo de caso." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/82/82131/tde-15052012-101538/.
Повний текст джерелаThe facial reconstruction, also known as facial approximation, is performed for centuries by forensic medicine professionals and anthropological areas researchers. In the forensic medicine, for example, it is used when there is no evidence that allows the identification of the individual by considered accurate means, such as DNA testing or dental records. Thus, the purpose of facial reconstruction is to assist researchers in reducing the number of possible unidentified people, therewith allowing the use of accurate tests. There are several methods used for facial reconstruction and researchers are constantly seeking to refine and improve. Then, these methods can be classified as facial reconstruction using 2D images or 3D objects. Among these methods, we can find the facial reconstruction that uses 3D computer graphics tools. This method can be performed both in manual form, where computer graphics tools are used in simulating the real world tools in the facial reconstruction process, or the automated way, where the user input data such as gender, age and ethnicity and the machine performs the entire process of facial reconstruction. The work purpose is to apply modeling techniques and the inclusion of soft tissues measures in 3D skull model, to validate the computer graphics use as a tool to aid the facial recognition in forensic medicine procedures. The skull model was reconstructed from computed tomography. Thus, we performed a study case of an exhumed body, who had the image registration in life as well as soft tissue measures data of the Brazilians faces. The tests were performed using manually 3D computer graphics tools currently available and the results were evaluated both quantitatively. The quantitative tests were performed comparing the surfaces of 3D reconstructions with interpolated and no interpolated craniometric points and to different soft tissues patterns.
Berar, Maxime. "Modèles statistiques de la forme d'organes du corps humain. Application à la reconstruction faciale." Phd thesis, Grenoble INPG, 2007. http://tel.archives-ouvertes.fr/tel-00275201.
Повний текст джерелаSouza, Andreia Cristina Breda de. "Aproximação fisionômica pericial através de função de base radial hermitiana." Universidade do Estado do Rio de Janeiro, 2014. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=9045.
Повний текст джерелаFacial approximation works by building the visual face up from the skull. This method should be performed as last resort, to carry out for missing persons, when there is no other primary identification method avaliable. The purpose of this study was to introduce a new computerized method with hermite radial basis function (HRBF) for facial approximation using dry skull and computed tomography (CT). The same was also evaluated as a result of the recognition. Firstly, a scan of a dry unidentified skull image was used in order to assess if the amount of points would be sufficient for HRBF methodology and subsequent reconstruction of the facial surface. In second, three CT scans of living individuals were used to evaluate the similarity achieved between the real face scanned and facial approximations. An association of different facial structures reconstruction techniques already published for the same region of the face was applied for the same skull. Moreover, some situations from developed facial approximations were simulated, as recognition by a relative or parent, on a face pool-test. Results from the study showed that the purposed methodology can be used for facial approximation. At the three cases a correct approximation identification as one of a few possible matches to the missing person happened. In two of them, the results were consistently better at identifying the correct approximation. In conclusion, the proposed methodology is fast, objective and reaches visual identification. It is possible to perform multiple versions of the same skull, changing the selected data into the system, which maximizes the chances of establishing recognition of the target face. It was also observed that the technique does not need artistic interpretation.
Almeida, Natalie Haddad de. "Reconstrução facial: mensuração da espessura dos tecidos moles que recobrem a face." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/23/23153/tde-14012013-125744/.
Повний текст джерелаForensic facial reconstruction is a technique that has the aim of recognition and identification, in situations in which a known identity of the sketelon submetted to medico-legal procedures is not available. The objective of the study was to study the soft tissue thicknesses that cover the face of autopsied corpses that were sent to Guarulho´s Medical-Legal Institute from September 2010 to September 2011. Measurements of 49 anatomic references were performed in the face of corpses with less than 24 hours of death; data were analysed using t test with bicaudal p. The project was approved by the University of São Paulo´s School of Dentistry Ethics Committee (protocol number 144/2010). One hundred corpses were studied, being 64 male and 26 female. They were mainly 41 to 60 years old. Among all the 49 studied anatomic references, just five presented a p value lower than 0.05, that is, these references showed differences between sex: upper lip margin (p=0.006), superior labius sulcus (p=0.006), stomion (p=0,001), right lateral orbits (p=0.008) and left chelion (p=0.009). The studied anatomic references allowed to establish more precise parameters of the faces thicknesses that can be applied in corpses facial reconstructions in the Brazilian population, and some anatomic references presented a higher discriminant Power with regard to sex. Furthermore, the anatomic landmarks offered information to a reference table with the objective of forensic facial reconstruction.
Dakpé, Stéphanie. "Etude biomécanique de la mimique faciale." Thesis, Compiègne, 2015. http://www.theses.fr/2015COMP2203/document.
Повний текст джерелаThe aim of this research is to study facials mimics movements and to correlate externat soft tissue (i.e., cutaneous) movement during facial mimics with internal (i.e., facial mimic muscle) movement. The entire facial mimicry couldn't be studied, that's why relevant movements had been selected. Those movements were characterised by a clinically qualitative analysis in 23 young healthy volunteers. The analysis was performed with video recordings including scaling derived from the FACS (Facial Action Coding System). After the validation of external characterisation by this method, internal characterisation of the mimic facial muscle was carried out in 10 volunteers. A modelization of selected facial mimic muscle as Zygomaticus Major was achieved. With this work, morphological parameters could be extracted, 3D morphometric data were analysed to provide a better understanding of cinematic behaviour of muscle in different positions.This research is included in the Simovi Project, which aims to determine to what extent a facial mimic can be evaluated objectively, to select the qualitative and quantitative indicators for evaluation of mimic facial disorders, and to transfer our technological developments in clinical field. This research is a first step and provides data for simulation or developments of measurement tools in evaluation and follow-up of mimic facial disorders
Jabbari, Fatemeh. "Reconstruction of the alveolar process in cleft patients." Doctoral thesis, Uppsala universitet, Käkkirurgi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-282020.
Повний текст джерелаSilva, Josivan Pereira da. "Reconstrução facial tridimensional por malha poligonal em teleconferências com ponto de visão livre." reponame:Repositório Institucional da UFABC, 2016.
Знайти повний текст джерелаDissertação (mestrado) - Universidade Federal do ABC, Programa de Pós-Graduação em Engenharia da Informação, 2016.
Os computadores pessoais possuem um papel importante na vida das pessoas, para auxílio em suas tarefas cotidianas como trabalho, entretenimento, e comunicação. Na comunicação, os computadores pessoais podem ser utilizados para chamadas de teleconferência, recebendo e transmitindo imagens e áudio entre longas distâncias. Para adicionar imersão na experiência de teleconferência, e permitir a escolha do ponto de visão por parte do usuário, uma teleconferência tridimensional com ponto de visão livre pode ser realizada, se modelos faciais tridimensionais forem criados a partir de imagens. Essa dissertação apresenta a investigação de métodos de geração de Malha Poligonal a partir de informações 3D extraídas de imagens, para aplicação em sistemas de teleconferências imersivas com ponto de visão livre. Um método de geração de Malha Poligonal chamado Quad Grid foi proposto para permitir a modelagem facial 3D em tempo real. As malhas poligonais das faces foram analisadas em experimentos objetivos e subjetivos. Os experimentos mostraram que o método Quad Grid teve resultado satisfatório e é um método rápido para a reconstrução facial 3D com malha poligonal. O software prova de conceito dessa dissertação resultou em um sistema de teleconferência 3D com ponto de visão livre.
The personal computers have an important role in the people lives to help in their daily tasks such as work, entertainment, and communication. With regard to the communication, the personal computer may be used for conference calls, receiving and transmitting images and audio between long distances. To add immersion inside the teleconferencing experience and allow the choice of viewing point by the user, a three-dimensional teleconference with free view point can be performed if three-dimensional facial models are created from images. This paper presents the research methods of generating polygonal mesh from 3D information extracted from images, for use in immersive conference calls systems with free view point. A method of generating polygonal mesh called Quad Grid has been proposed to allow the 3D face modeling in real time. The polygonal mesh of the faces were analyzed in objective and subjective experiments. The experiments showed that the Quad Grid method was satisfactory and is a fast method for 3D facial reconstruction with polygonal mesh. The proof of concept software of this Master Thesis resulted in a 3D teleconferencing system with free view point.