Extraction of human limb regions and parameter estimation based on curl of optical flow
Proceedings of the Fouth Asian Conference on Computer Vision : ACCV 2000 2 巻
1008-1013 頁
2000-01 発行
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accv2000.pdf
1.08 MB
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全文
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タイトル ( eng ) |
Extraction of human limb regions and parameter estimation based on curl of optical flow
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作成者 |
Yamamura Tsuyoshi
Ohnishi Noboru
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収録物名 |
Proceedings of the Fouth Asian Conference on Computer Vision : ACCV 2000
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巻 | 2 |
開始ページ | 1008 |
終了ページ | 1013 |
抄録 |
We propose a method for extracting a rotating limb region and estimating its motion parameters, which is based on the curl of optional flow. Regarding the optional flow as a vector field, the proposed method computes the curl of the optical flow to extract a rotating region. The method assumes that one angular velocity varies in a short time period. By using the EM algorithm, the center of rotation along with rotation angles for each frame is estimated, and simultaneously the rotating region is segmented. Since the proposed method doesn't require a simplicity of background, and can discriminate translational movements produced by other moving objects in the background, it is applicable to a practical situation in which conventional methods doesn't work well. Experimental results with real image sequences demonstrate that the limb extraction can be performed well from noisy optional flow which are obtained from real images.
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著者キーワード |
curl
optional flow
pose estimation
motion segmentation
EM algorithm
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NDC分類 |
電気工学 [ 540 ]
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言語 |
英語
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資源タイプ | 会議発表論文 |
出版者 |
Chinese Image Processing and Pattern Recognition Society
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発行日 | 2000-01 |
権利情報 |
Copyright (c) 2000 Chinese Image Processing and Pattern Recognition Society
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出版タイプ | Author’s Original(十分な品質であるとして、著者から正式な査読に提出される版) |
アクセス権 | オープンアクセス |