Presentation 2005-06-17
Probabilistic distribution of optical-flow based on image and noise characteristics
Yasuko TAKAHASHI, Hiroyuki ARAI, Akira SUZUKI, Kenichi ARAKAWA,
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Abstract(in English) We use a second-order differential constraint and a noise estimation hypothesis to create a probabilistic distributions of optical-flow. The second-order differential constraint contains a Hessian matrix; calculation of its inverse, in general, is not stable. The proposed method avoids inverse calculus of Hessian matrix and uses an assumed noise distribution to overcome this problem. The resulting probabilistic distributions contain flow information and represent the characteristics of the local structure of the image; edge point distributions are elongated, and basically flat points result in flat distributions. The probabilistic distributions can be integrated within equally moving points, and the results are limited in narrow area which permits optical flow estimation. This method depends on just local calculus, no recourse is made to exceptional processes.
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Keyword(in English) Optical Flow / Probabilistic distribution / Hessian matrix / Noise estimation
Paper # DE2005-23,PRMU2005-44
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Committee DE
Conference Date 2005/6/10(1days)
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Registration To Data Engineering (DE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Probabilistic distribution of optical-flow based on image and noise characteristics
Sub Title (in English)
Keyword(1) Optical Flow
Keyword(2) Probabilistic distribution
Keyword(3) Hessian matrix
Keyword(4) Noise estimation
1st Author's Name Yasuko TAKAHASHI
1st Author's Affiliation NTT Cyber Space Laboratories, NTT Corporation()
2nd Author's Name Hiroyuki ARAI
2nd Author's Affiliation NTT Cyber Space Laboratories, NTT Corporation
3rd Author's Name Akira SUZUKI
3rd Author's Affiliation NTT Cyber Space Laboratories, NTT Corporation
4th Author's Name Kenichi ARAKAWA
4th Author's Affiliation NTT Cyber Space Laboratories, NTT Corporation
Date 2005-06-17
Paper # DE2005-23,PRMU2005-44
Volume (vol) vol.105
Number (no) 117
Page pp.pp.-
#Pages 6
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