| Presentation | 2004/1/6 DETECTION OF FEATURE POINTS FROM LIP IMAGE SEQUENCES USING A TWO-STAGE SVM CIASSIFIER (Computer Vision, Medical Applications and Networked MM)(International Workshop On Advanced Image Technology (IWAIT2004)) Masato Yanagisawa, Norio Tagawa, Akihiro Minagawa, Tadashi Moriya, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose herein an algorithm by which to detect four lip feature points from an image sequence. The feature points consist of the left and right side points of the mouth as well as the center points of both the upper and lower lips. It is possible to detect these points from an image which contains expected changes in both lighting conditions and the direction of the face. In the algorithm, the SVM classifiers are arranged for each feature point in two resolutions. First, in the low-resolution image, the rough positions of each feature point is detected using the global pattern information and the geometric placement constraint of these points. Then, in the high-resolution image, feature points are detected from the area decided by rough positions at first search. This detection is carried out based on the local pattern information. The two-stage search on resolution and a geometric placement constraint can improve the accuracy and computational cost of the detection. |
| Keyword(in Japanese) | (See Japanese page) |
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| Paper # | IE2003-166 |
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| Committee | IE |
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| Conference Date | 2004/1/6(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Image Engineering (IE) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | DETECTION OF FEATURE POINTS FROM LIP IMAGE SEQUENCES USING A TWO-STAGE SVM CIASSIFIER (Computer Vision, Medical Applications and Networked MM)(International Workshop On Advanced Image Technology (IWAIT2004)) |
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| 1st Author's Name | Masato Yanagisawa |
| 1st Author's Affiliation | Graduate School of Engineering, Tokyo Metropolitan University() |
| 2nd Author's Name | Norio Tagawa |
| 2nd Author's Affiliation | Graduate School of Engineering, Tokyo Metropolitan University |
| 3rd Author's Name | Akihiro Minagawa |
| 3rd Author's Affiliation | Graduate School of Engineering, Tokyo Metropolitan University |
| 4th Author's Name | Tadashi Moriya |
| 4th Author's Affiliation | Graduate School of Engineering, Tokyo Metropolitan University |
| Date | 2004/1/6 |
| Paper # | IE2003-166 |
| Volume (vol) | vol.103 |
| Number (no) | 540 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |