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- W2121680956 abstract "Recognition of a person from gait has been a focus in computer vision. It is one biometric source that can be acquired at a distance. At this nascent stage of gait recognition research, the pertinent research questions are those related to understanding the limits of gait recognition and the quantitative study of the various factors effecting gait. However, performances of contemporary algorithms have been confounded by errors in the extracted silhouettes, which has been the low-level representation of choice. In this work, (i) we present to the research community a segmentation ground truth research resource consisting of a set of manually specified part-level silhouettes for 70 subjects from the formulated gait challenge database, under different conditions involving change in surface, shoe-type, and time; a total of about 8000 manual silhouettes. (ii) We expound an HMM eigen stance model-based silhouette reconstruction method to correct for common errors in silhouette detection arising from shadows and background subtraction. And (iii) using these cleaned silhouettes and the manual silhouettes we show that the effects of various factors such as surface, time, and shoe on gait recognition are not due to poor silhouette quality. In fact, the recognition performance actually drops with the use of clean silhouettes because of removal of correlation in the error pixel patterns." @default.
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- W2121680956 date "2004-11-13" @default.
- W2121680956 modified "2023-10-05" @default.
- W2121680956 title "Studies on silhouette quality and gait recognition" @default.
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- W2121680956 doi "https://doi.org/10.1109/cvpr.2004.1315233" @default.
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