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ICPR
2006
IEEE
16 years 7 months ago
Uncertainties-driven Surface Morphing: The case of Photo-realistic Transitions between Facial Expressions
Reproduction of facial animation play a fundamental role in applications requiring human-computer interactions The objective of this paper is to introduce a geometric mechanism th...
Charlotte Ghys, Maxime Taron, Nikos Paragios
ICPR
2006
IEEE
16 years 7 months ago
Multi-orientation analysis by decomposing the structure tensor and clustering
The structure tensor yields an excellent characterization of the local dimensionality and the corresponding orientation for simple neighborhoods, i.e. neighborhoods exhibiting a s...
Lucas J. van Vliet, Frank G. A. Faas
ICPR
2006
IEEE
16 years 7 months ago
Shape-based Discrimination and Classification of Cortical Surfaces
Advances in medical imaging technique make it possible to study shape variations of neuroanatomical structures in vivo, which has been proved useful in the study of neuropathology...
Arthur K. Liu, Bruce Fischl, Florent Ségonn...
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ICPR
2006
IEEE
16 years 7 months ago
Perspective Symmetry Invariant and Its Applications
Face is a perceptually symmetric object; however, it often appears not so in captured image due to the rotation in depth within the 3D space. In this paper, we explore the invaria...
Shuicheng Yan, Tianqiang Yuan, Xiaoou Tang
ICPR
2004
IEEE
16 years 7 months ago
Shape Retrieval using Concavity Trees
y trees are well-known abstract structures. This paper proposes a new shape-based image retrieval method based on concavity trees. The proposed method has two main components. The...
Mohamed Kamel, Ossama El Badawy