Marker-free motion capture apparatus and method for...

Image analysis – Applications – Target tracking or detecting

Reexamination Certificate

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C382S206000

Reexamination Certificate

active

07580546

ABSTRACT:
A marker-free motion capture apparatus having a function of correcting a tracking error and a method thereof are disclosed. The apparatus includes: a grouping unit for grouping feature candidates located within a threshold distance on a three-dimensional space at a previous time; a feature point selecting unit for generating a first curve connecting a predetermined number of feature points, and selecting a feature candidate closest to the first curve as a feature point of a previous time; a feature point correcting unit for generating a second curve connecting a predetermined number of feature points including the feature point of a previous time, and correcting a feature point of a current time calculated based on a Kalman filtering scheme using the second curve; and a controlling unit for calculating a location of a feature point of each time using a Kalman filtering scheme and generally controlling the marker-free motion capture apparatus.

REFERENCES:
patent: 7239718 (2007-07-01), Park et al.
patent: 7257237 (2007-08-01), Luck et al.
patent: 2003/0219147 (2003-11-01), Nishiura
patent: 1020000017755 (2000-04-01), None
patent: 1020040055310 (2004-06-01), None
Sung-Eun Kim, “Analysis of 3D Human Motion In A Computer Vision-Based Motion Capture System”, Proceedings of the 7th Korea-Russia International Symposium, KORUS 2003, pp. 329-334.

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