Recognition using gait.

Koch, Mark William

关键词: LEGS;    MOTION;    PATTERN RECOGNITION;    ALGORITHMS;    SHAPE;    PERFORMANCE Identification.;    Computer Imaging;    Vision;    Pattern Recognition and Graphics;    Pattern recognition.;   

DOI  :  10.2172/922087
RP-ID  :  SAND2007-6215
PID  :  OSTI ID: 922087
Others  :  TRN: US200806%%52

学科分类：生物科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Gait or an individual's manner of walking, is one approach for recognizing people at a distance. Studies in psychophysics and medicine indicate that humans can recognize people by their gait and have found twenty-four different components to gait that taken together make it a unique signature. Besides not requiring close sensor contact, gait also does not necessarily require a cooperative subject. Using video data of people walking in different scenarios and environmental conditions we develop and test an algorithm that uses shape and motion to identify people from their gait. The algorithm uses dynamic time warping to match stored templates against an unknown sequence of silhouettes extracted from a person walking. While results under similar constraints and conditions are very good, the algorithm quickly degrades with varying conditions such as surface and clothing.