Object activity modeling method

Details Object activity modeling method Object activity modeling method

2007-12-11

2007-12-11

An, Shawn S. (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240260, C348S699000, C348S700000, C704S256100, C704S256200, C704S256400

Reexamination Certificate

active

11103588

ABSTRACT:
An object activity modeling method which can efficiently model complex objects such as a human body is provided. The object activity modeling method includes the steps of (a) obtaining an optical flow vector from a video sequence; (b) obtaining the probability distribution of the feature vector for a plurality of video frames, using the optical flow vector; (c) modeling states, using the probability distribution of the feature vector; and (d) expressing the activity of the object in the video sequence based on state transition. According to the modeling method, in video indexing and recognition field, complex activities such as human activities can be efficiently modeled and recognized without segmenting objects.

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patent: 6303920 (2001-10-01), Wixson
patent: 6366701 (2002-04-01), Chalom et al.
patent: 6597816 (2003-07-01), Altunbasak et al.
patent: 10-255070 (1998-09-01), None

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