نتایج جستجو برای: 3d face

تعداد نتایج: 347020  

2005
Richard Roussel André Gagalowicz

In the context of post-production for the movie industry, localization of a 3D face in an image sequence is a topic, with a growing interest. It’s not only a face detection (already done!), but an accurate 3D face localization, an accurate face expression recognition, coupled with the localization, allowing to track a real “living” faces (with speech and emotion). To obtain a faithful tracking,...

2006
CHAO LI ARMANDO BARRETO

-Biometrics is the area of bioengineering that pursues the characterization of individuals in a population (e.g., a particular person) by means of something that the individual is or produces. Among the different modalities in biometrics, face recognition has been a focus in research for the last couple of decades because of its wide potential applications and its importance to meet the securit...

2007
Unsang Park Anil K. Jain

Face recognition in video has gained wide attention due to its role in designing surveillance systems. One of the main advantages of video over still frames is that evidence accumulation over multiple frames can provide better face recognition performance. However, surveillance videos are generally of low resolution containing faces mostly in non-frontal poses. Consequently, face recognition in...

2016
Guosheng Hu Fei Yan Chi-Ho Chan Weihong Deng William J. Christmas Josef Kittler Neil Martin Robertson

We address the problem of 3D-assisted 2D face recognition in scenarios when the input image is subject to degradations or exhibits intra-personal variations not captured by the 3D model. The proposed solution involves a novel approach to learn a subspace spanned by perturbations caused by the missing modes of variation and image degradations, using 3D face data reconstructed from 2D images rath...

Journal: :Graphical Models 2009
Frank B. ter Haar Remco C. Veltkamp

Among the many 3D face matching techniques that have been developed, are variants of 3D facial curve matching, which reduce the amount of face data to one or a few 3D curves. The face’s central profile, for instance, proved to work well. However, the selection of the optimal set of 3D curves and the best way to match them has not been researched systematically. We propose a 3D face matching fra...

Journal: :Vision Research 2006
Chang Hong Liu James Ward

Effects of shading in face recognition have often alluded to 3D shape processing. However, research to date has failed to demonstrate any use of important 3D information. Stereopsis adds no advantage in face encoding [Liu, C. H., Ward, J., & Young, A. W. (in press). Transfer between 2D and 3D representations of faces. Visual Cognition], and perspective transformation impairs rather than assists...

Journal: :NeuroImage 2009
Stéphanie Caharel Fang Jiang Volker Blanz Bruno Rossion

The human brain recognizes faces by means of two main diagnostic sources of information: three-dimensional (3D) shape and two-dimensional (2D) surface reflectance. Here we used event-related potentials (ERPs) in a face adaptation paradigm to examine the time-course of processing for these two types of information. With a 3D morphable model, we generated pairs of faces that were either identical...

Journal: :Vision research 2017
Z H D Eng Y Y Yick Y Guo H Xu M Reiner T J Cham S H A Chen

Recognition of faces typically occurs via holistic processing where individual features are combined to provide an overall facial representation. However, when faces are inverted, there is greater reliance on featural processing where faces are recognized based on their individual features. These findings are based on a substantial number of studies using 2-dimensional (2D) faces and it is unkn...

2005
Bernd Heisele Volker Blanz

In this chapter we present a system for face recognition that combines two recent advances in computer graphics and computer vision: 3D morphable models and component-based recognition. By fitting a morphable model to a triplet of face images we generate a 3D head model for each person in our face database. The 3D models are rendered under varying pose and illumination conditions to build a lar...

Ground settlement is often the most serious concern when tunneling under an old city with numerous historic monuments. A successful engineering design under these conditions would require getting the most out of the ground strength parameters and avoiding any weakening maneuver throughout the operation. Knowing that surface settlement is highly affected by tunneling parameters in EPB shield tun...

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