human identification using silhouette gait data rutgers university chan-su lee
Post on 15-Jan-2016
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![Page 1: Human Identification using Silhouette Gait Data Rutgers University Chan-Su Lee](https://reader035.vdocuments.net/reader035/viewer/2022062305/56649d795503460f94a5ccea/html5/thumbnails/1.jpg)
Human Identification using
Silhouette Gait Data
Rutgers UniversityChan-Su Lee
![Page 2: Human Identification using Silhouette Gait Data Rutgers University Chan-Su Lee](https://reader035.vdocuments.net/reader035/viewer/2022062305/56649d795503460f94a5ccea/html5/thumbnails/2.jpg)
Problem of Gait Recognition● Advantage of gait as human
identification– Difficult to disguise– Observable in a distance
● Difficulty of gait recognition– Existance of various source of
variation: viewpoint, clothing, walking surface, shoe type, etc.
– Spatio-temporal image sequence: Huge data, variation in speed->difficult to compare
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Standard Embedding of Gait Cycle
● Dimensionality of gait cycle– One dimensional manifold in 3D
space– Half cycle->2D space with cycle– Standard embedding on circles
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Bilinear Models for Gait
● Gait Style– Time invariant personalized
style of the gait● Gait Content
– Variant factor depend on time and viewpoint, shoes, and so on
– Represented by different body pose
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Gait recognition algorithm(I)
● Asymmetric Model
● Symmetric Model
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Gait recognition algorithm (II)
● Adaptation to new situation – Learn new factor by
modifying content vector– Find style factor using new
content vector
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Experiment Results
● Improvement by normalized gait– 14 peoples – 3 different factors
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Demos
Original Gait Data(GAR) Different Surface(CAR)
Silhouette Images(GAR) Silhouette Images(CAR)
Filtered Silhouette Images(GAR)
Implicit Function Representation of Silhouette Images(GAR)
Normalized Gait Image Sequence(GAR)
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Others