Gait Verification System for Criminal Investigation
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概要
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This paper describes the first gait verification system for criminal investigation using footages from surveillance cameras. The system is designed so that the criminal investigators as non-specialists on computer vision-based gait verification can, independently, use it to verify unknown perpetrators as suspects or ex-convicts in criminal investigations. Each step of the gait verification process is proceeded by interactive operation on a graphics-user interface. Eventually, for each pair of compared subjects selected by a user, the system outputs a posterior probability on a verification result, which indicates that compared subjects are the same, with the consideration of various circumstances of the subjects such as the size, frame-rate, observation views, and clothing of subjects. One gait-specialist and ten non-gait-specialists participated in operation tests of the system using five different datasets with various types of scenes, each of which contained two or three verification sets. It was shown that all the non-gait-specialists, as well as the gait-specialist, could obtain reasonable verification results for almost all of the verification sets.
著者
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Iwama Haruyuki
The Institute of Industrial and Scientific Research, Osaka University
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Muramatsu Daigo
The Institute of Industrial and Scientific Research, Osaka University
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Makihara Yasushi
The Institute of Industrial and Scientific Research, Osaka University
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Yagi Yasushi
The Institute of Industrial and Scientific Research, Osaka University
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