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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タイトル ( eng )
Extraction of human limb regions and parameter estimation based on curl of optical flow
作成者
Yamamura Tsuyoshi
Ohnishi Noboru
収録物名
Proceedings of the Fouth Asian Conference on Computer Vision : ACCV 2000
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.
著者キーワード
curl
optional flow
pose estimation
motion segmentation
EM algorithm
NDC分類
電気工学 [ 540 ]
言語
英語
資源タイプ 会議発表論文
出版者
Chinese Image Processing and Pattern Recognition Society
発行日 2000-01
権利情報
Copyright (c) 2000 Chinese Image Processing and Pattern Recognition Society
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)
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