NDLI: Multiscale integral invariant for motion trajectory matching and recognition

Content Provider	IEEE Xplore Digital Library
Author	Zhanpeng Shao Li, Y.F.
Copyright Year	2014
Description	Author affiliation: Dept. of Mech. & Biomed. Eng., City Univ. of Hong Kong, Kowloon Tong, China (Zhanpeng Shao; Li, Y.F.)
Abstract	Motion trajectory obtained from visual tracking provides an important clue to help understand motion content. This paper presents a multiscale integral invariant for motion trajectory representation which can be input to a classifier performing motion retrieve, action and gesture recognition. A meaningful integral invariant for motion trajectory under group transformations is first defined on progression of the Frenet-Serret frame with dynamic integral domain that is defined and bounded by the ball kernel function. The corresponding estimation approach is then investigated based on blurred segment of noise discrete curve. Accordingly we develop a multiscale representation of the proposed integral invariant in terms of varying scale radius of ball kernel function, by which the features of motion trajectory can be perceived at multiscale levels in coarse-to-fine manner. Through the experiments, we examine the robustness and effectiveness of our proposed representation being able to capture the motion cues in trajectory matching and gesture recognition. This multiscale integral invariant also benefits the shape representation and matching in both planar and 3D objects recognition.
Starting Page	126
Ending Page	131
File Size	800150
Page Count	6
File Format	PDF
ISBN	9781479939787
e-ISBN	9781479939794
DOI	10.1109/ICMA.2014.6885683
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-08-03
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Trajectory Kernel Vectors Gesture recognition Shape Three-dimensional displays Integral equations Gesture Recognition Motion Trajectory Multiscale Integral Invariant Maximal Blurred Segment
Content Type	Text
Resource Type	Article

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