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Separation of texture and shape in images of faces for image coding and synthesis

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons84280

Vetter,  T
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons84263

Troje,  NF
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Zitation

Vetter, T., & Troje, N. (1997). Separation of texture and shape in images of faces for image coding and synthesis. Journal of the Optical Society of America A, 14(9), 2152-2161. doi:10.1364/JOSAA.14.002152.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0013-E9E6-8
Zusammenfassung
Human faces differ in shape and texture. Image representations based on this separation of shape and texture information have been reported by several authors [for a review, see Science 272, 1905 (1996)]. We investigate such a representation of human faces based on a separation of texture and two-dimensional shape information. Texture and shape were separated by use of pixel-by-pixel correspondence among the various images, which was established through algorithms known from optical flow computation. We demonstrate the improvement of the proposed representation over well-established pixel-based techniques in terms of coding efficiency and in terms of the ability to generalize to new images of faces. The evaluation is performed by calculating different distance measures between the original image and its reconstruction and by measuring the time that human subjects need to discriminate them.