Download or read book Three dimension Facial De ageing and Ageing Modeling written by Farnaz Majid Zadeh Heravi and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this thesis is to deploy and develop mathematical models to digitally simulate the human faces at any target age. The state-of-the-art in ageing modeling has not addressed the role of biological maturation from infancy to young adulthood where the anthropometrical displacements are occurring. In addition, the three dimensional (3D) face representation is considered in this thesis. The depth and pose variation provides additional information to represent faces accurately.Contrary to numerous studies that focused on 2D facial ageing and predicting the face appearance in the future, this thesis proposes the mathematical de-ageing and ageing models using 3D facial textured meshes of human faces considering the natural trajectory of ageing development during childhood, adulthood and senility.For the purpose of model construction, the face templates are reconstructed in 3D for the age groups from 3 to 75 years old for both genders.To validate the results, three metrics are defined to assess the faces from textural, geometrical and landmark distortion aspects. The metrics were applied on the collected database Face Time-Machine (FaceTim V.2.0) which contains the ground truth 3D faces. The results of the performance evaluation metric on the de-ageing model known as 3D B-FAM show the similarity rate of 75% which means the model does not represent significant disparity.Having considered that facial ageing phenomenon rely on various intrinsic and extrinsic circumstances, we propose a dynamic shape model as a fusion of de-ageing ageing models. This model takes into account the facial shape variations due to lifestyle and nutritious diet. The rendering results indicate that they are perceptually satisfying. Besides, the evaluation results show that the proposed models are remarkably accurate to predict the correct face appearance of an individual in the target age and shape.Furthermore, we address facial asymmetry for methamphetamine addicts using a collected drug-addicted face database. The facial asymmetry is assessed by employing the structural similarity index for textural aspect; and bilateral features for morphological quantification. Statistical analysis indicates a significant increment of facial asymmetry for methamphetamine addicts while ageing. The statistical analysis shows that for drug-addicts, the asymmetry measurement in faces before using drugs is 2% in geometry aspect and it reaches to more than 5%. This increment is seen in textural aspect where the similarity index is 28% and points to 39% for drug addicts.

Download or read book Synthesis of Facial Ageing Transforms Using Three dimensional Morphable Models written by David W. Hunter and published by . This book was released on 2009 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Congruent Facelift written by Lawrence C. Y. Ho and published by Springer. This book was released on 2017-12-30 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with a special form of facial rejuvenative surgery, which considers the three-dimensional anatomy of the face and benchmarks it against biomechanical models of the face. Traditional approaches to the ageing human face have been based on a two-dimensional approach. The authors, however, consider the human face using a three-dimensional platform that reflects height, width and depth and thus defines spatial divisions or pilasters. The anatomically accurate and bio-physically based three-dimensional computational models, originally used to simulate facial expressions and subsequently in the dynamic evaluation of the various soft tissues, offer a valuable new tool for surgical techniques. The book is divided into four chapters, the first of which describes the historical developments, evolution of facelift procedures and review of traditional two-dimensional approach. The second chapter presents three-dimensional surgical anatomy of the face and neck with the introduction of "facial pilasters". Treating the human face as a collection of compliant and rigid structural components which obey engineering principles and its biomechanical behaviour is discussed in chapter three. The last chapter provides the reader comprehensive information on the surgical procedure for contour vector congruent facelift, including case studies. An alternative approach (Rejuvenative Facial Lipomorphoplasty) to the de-volumed ageing face with little sagging and skin excess is introduced together with case studies. This book was motivated by the desire to define the key steps in facelift techniques and provides an essential guide for young plastic surgeons, as well as experienced surgeons who are dissatisfied with the current two-dimensional platform.

Download or read book De aging High resolution 3D Facial Models by Example driven Mesh Deformation written by 黃詩晏 and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Statistical Modeling of Facial Aging Based on 3D Scans written by Pascal Paysan and published by . This book was released on 2010 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 3D Face Modeling Analysis and Recognition written by Mohamed Daoudi and published by Wiley. This book was released on 2013-08-19 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: 3D Face Modeling, Analysis and Recognition presents methodologies for analyzing shapes of facial surfaces, develops computational tools for analyzing 3D face data, and illustrates them using state-of-the-art applications. The methodologies chosen are based on efficient representations, metrics, comparisons, and classifications of features that are especially relevant in the context of 3D measurements of human faces. These frameworks have a long-term utility in face analysis, taking into account the anticipated improvements in data collection, data storage, processing speeds, and application scenarios expected as the discipline develops further. The book covers face acquisition through 3D scanners and 3D face pre-processing, before examining the three main approaches for 3D facial surface analysis and recognition: facial curves; facial surface features; and 3D morphable models. Whilst the focus of these chapters is fundamentals and methodologies, the algorithms provided are tested on facial biometric data, thereby continually showing how the methods can be applied. Key features: • Explores the underlying mathematics and will apply these mathematical techniques to 3D face analysis and recognition • Provides coverage of a wide range of applications including biometrics, forensic applications, facial expression analysis, and model fitting to 2D images • Contains numerous exercises and algorithms throughout the book

Download or read book Biometrics under Biomedical Considerations written by Amine Nait-Ali and published by Springer. This book was released on 2018-12-13 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses biometrics from a biomedical engineering point of view. Divided into five sections, it discusses topics including the influence of pathologies on various biometric modalities (e.g. face, iris, fingerprint), medical and security biometrics, behavioural biometrics, instrumentation, wearable technologies and imaging. The final chapters also present a number of case studies. The book is suitable for advanced graduate and postgraduate students, engineers and researchers, especially those in signal and image processing, biometrics, and biomedical engineering.

Download or read book Face It written by Patricia Beckmann Wells and published by Focal Press. This book was released on 2018-06-30 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: As animation software becomes more advanced and graphics become more refined, the opportunity to create informative detail becomes more achievable in your characters. You can't give every character the same facial contours anymore. Today's graphic engines and hi-definition screens enhance detail, and the features in your character can make or break the believability of your game or movie. Face It provides you with the resources that you need to ensure an accurate character model. By examining the skulls of people of different ages, ethnicities, and geographical areas, authors Patricia Beckmann-Wells and Scott Wells showcase the intricacies of the human head and face, and show you how to apply that to your models. Whether it be a Caucasion women in her 50s or an African man in his late 20s, you'll know how to properly shape a forehead, an eye socket, and even cheekbones to ensure the 100% accuracy of your 3D character.

Download or read book Computer Graphic Facial Reconstruction written by John G. Clement and published by Elsevier. This book was released on 2005-07-02 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique books looks at a cost-efficient, fast and accurate means of facial reconstruction--from segmented, decomposed, or skeletal remains--using computer-graphic and computational means.Computer-Graphic Facial Reconstruction is designed as a valuable resource for those scientists designing new research projects and protocols, as well as a practical handbook of methods and techniques for medico-legal practitioners who actually identify the faceless victims of crime. It looks at a variety of approaches: artificial intelligence using neural networks, case-based reasoning, Baysian belief systems, along with a variety of imaging methods: radiological, CT, MRI and the use of imaging devices.The methods described in this book complement, or may even replace, the less-reliable, more traditional means of securing identification by presumptive means, i.e., recognition of clothing, personal effects and clay reconstruction.- Covers cutting-edge technologies in the context of historical forensic reconstruction methods- Features stellar authors from around the globe- Bridges the areas of computer graphics, animation, and forensic anthropology

Download or read book A Fully Three Dimensional Method for Facial Reconstruction Based on Deformable Models written by G. Quatrehomme and published by . This book was released on 1997 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two facial models corresponding to two deceased subjects have been manually created and the two corresponding skulls have been dissected and skeletonized. These pairs of skull/facial data have been scanned with a CT scanner, and the computed geometric three-dimensional models of both skulls and facial tissue have been built. One set of skull/facial data will be used as a reference set whereas the second set is used as ground truth for validating our method. After a semi-automatic face-skull registration, we apply an original computing global parametric transformation T that turns the reference skull into the skull to be reconstructed. This algorithm is based upon salient lines of the skull called crest lines; more precisely the crest lines of the first skull are matched to the crest lines of the second skull by an iterative closest point algorithm. Then we apply this algorithm to the reference face to obtain the "unknown" face to be reconstructed. The reliability and difficulties of this original technique are then discussed.

Download or read book Beyond PCA written by Chi Nhan Duong and published by . This book was released on 2018 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling faces with large variations has been a challenging task in computer vision. These variations such as expressions, poses and occlusions are usually complex and non-linear. Moreover, new facial images also come with their own characteristic artifacts greatly diverse. Therefore, a good face modeling approach needs to be carefully designed for flexibly adapting to these challenging issues. Recently, Deep Learning approach has gained significant attention as one of the emerging research topics in both higher-level representation of data and the distribution of observations. Thanks to the nonlinear structure of deep learning models and the strength of latent variables organized in hidden layers, it can efficiently capture variations and structures in complex data. Inspired by this motivation, we present two novel approaches, i.e. Deep Appearance Models (DAM) and Robust Deep Appearance Models (RDAM), to accurately capture both shape and texture of face images under large variations. In DAM, three crucial components represented in hierarchical layers are modeled using Deep Boltzmann Machines (DBM) to robustly capture the variations of facial shapes and appearances. DAM has shown its potential in inferencing a representation for new face images under various challenging conditions. An improved version of DAM, named Robust DAM (RDAM), is also introduced to better handle the occluded face areas and, therefore, produces more plausible reconstruction results. These proposed approaches are evaluated in various applications to demonstrate their robustness and capabilities, e.g. facial super-resolution reconstruction, facial off-angle reconstruction, facial occlusion removal and age estimation using challenging face databases: Labeled Face Parts in the Wild (LFPW), Helen and FG-NET. Comparing to classical and other deep learning based approaches, the proposed DAM and RDAM achieve competitive results in those applications, thus this showed their advantages in handling occlusions, facial representation, and reconstruction. In addition to DAM and RDAM that are mainly used for modeling single facial image, the second part of the thesis focuses on novel deep models, i.e. Temporal Restricted Boltzmann Machines (TRBM) and tractable Temporal Non-volume Preserving (TNVP) approaches, to further model face sequences. By exploiting the additional temporal relationships presented in sequence data, the proposed models have their advantages in predicting the future of a sequence from its past. In the application of face age progression, age regression, and age-invariant face recognition, these models have shown their potential not only in efficiently capturing the non-linear age related variance but also producing a smooth synthesis in age progression across faces. Moreover, the structure of TNVP can be transformed into a deep convolutional network while keeping the advantages of probabilistic models with tractable log-likelihood density estimation. The proposed approach is evaluated in terms of synthesizing age-progressed faces and cross-age face verification. It consistently shows the state-of-the-art results in various face aging databases, i.e. FG-NET, MORPH, our collected large-scale aging database named AginG Faces in the Wild (AGFW), and Cross-Age Celebrity Dataset (CACD). A large-scale face verification on Megaface challenge 1 is also performed to further show the advantages of our proposed approach.

Download or read book Interpolating Between Computerized Three Dimensional Forensic Facial Simulations written by MA. Green and published by . This book was released on 1999 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The shape of the skull is a limited predictor of facial appearance and facial reconstruction methods can offer at best a resemblance to the individual during life. Various unknown factors in addition to those relating to age, build, obesity, ethnic group, and the varying shape of the eyes, nose, and mouth mean that a variety of facial reconstructions could be produced from any single skull. A disadvantage of both traditional "plastic" facial reconstruction methods and existing computerized equivalents is that the finished reconstruction is fixed and substantial further work is required if a modified outcome is to be presented. An advantage of computerization is that if offers a greater potential for easy revision of images. Here we describe a method for interpolating or "morphing" between virtual images of facial reconstructions produced using the "plastic" technique which enables the interactive fattening of the face in three dimensions. Morphing is achieved using qmorf, a demonstration program, and using the interpolator node of virtual reality modeling language (VRML).

Download or read book The Development of a Three dimensional Facial Template to Predict and Plan Orthognathic Changes in the 18 23 Age Group written by Suzannah Jane Stewart-Stanton and published by . This book was released on 2008 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Presenting Three Dimensional Forensic Facial Simulations on the Internet Using VRML written by MP. Evison and published by . This book was released on 1999 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in graphical computing have led to the development of computerized simulation models for forensic facial reconstruction in three dimensions. As well as being rapid and repeatable, computerization also offers a flexible means of presenting finished reconstructions. Here we describe the presentation of virtual images of plastic reconstructions on the Internet using virtual reality modeling language (VRML) and the enhancement of the final images using a commercially available three-dimensional editing program. The Internet offers an additional medium for presenting images to the public which will complement the traditional methods. International round-the-clock accessibility to images is gained, combined with the facility to interact freely with the reconstruction in three dimensions. Use of the Internet will also facilitate an efficient internationally available service for computerized forensic facial reconstruction.

Download or read book Handbook of Face Recognition written by Stan Z. Li and published by Springer Science & Business Media. This book was released on 2011-08-22 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: This highly anticipated new edition provides a comprehensive account of face recognition research and technology, spanning the full range of topics needed for designing operational face recognition systems. After a thorough introductory chapter, each of the following chapters focus on a specific topic, reviewing background information, up-to-date techniques, and recent results, as well as offering challenges and future directions. Features: fully updated, revised and expanded, covering the entire spectrum of concepts, methods, and algorithms for automated face detection and recognition systems; provides comprehensive coverage of face detection, tracking, alignment, feature extraction, and recognition technologies, and issues in evaluation, systems, security, and applications; contains numerous step-by-step algorithms; describes a broad range of applications; presents contributions from an international selection of experts; integrates numerous supporting graphs, tables, charts, and performance data.

Download or read book Skin Aging written by Barbara A. Gilchrest and published by Springer Science & Business Media. This book was released on 2006-04-20 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: The topic of skin aging is of growing importance to all working in the field of dermatology, aesthetic medicine and cosmetic medicine. Two internationally well-known and leading experts in the field present a comprehensive state-of-the-art review on all aspects of skin aging. With its clear, concise and reader-friendly format this book has all the potential to become the Bible of skin aging. Every specialist interested in dermatology, aesthetic medicine, cosmetic science, cutaneous biology and aging research will find indispensable information of great value for his or her daily work.

Download or read book Three Dimensional Cephalometry written by Gwen R.J. Swennen and published by Springer Science & Business Media. This book was released on 2005-08-10 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: This richly illustrated colour atlas and manual provides orthodontists, maxillofacial and plastic craniofacial surgeons, genetic dysmorphologists and medical anthropologists with exhaustive information on all aspects of three-dimensional cephalometric analysis of hard and soft tissues. The book offers practical, straightforward "step-by-step" guidance for both clinicians and researchers interested in 3-D assessment of the head and face.