Motion detection method and apparatus

Details Motion detection method and apparatus Motion detection method and apparatus

1999-06-03

2000-11-07

Couso, Jose L.

Image analysis

Image compression or coding

Interframe coding

382232, 382238, G06K 936

Patent

active

061447706

ABSTRACT:
The present invention provides a method and apparatus for detecting motion in an input sequence of images. Each image comprises a number of lines and each line has a number of pixels. Values of a region of pixels of a current image are transformed to determine a set of representation values. The set of representation values are indicative of the region of pixels at a number of resolution levels. The set of representation values of the region of pixels of the current image are compared with a set of representation values of a corresponding region of pixels from a stored previous image. Based on the comparing step, a difference measure is determined between the region of pixels and the corresponding region of pixels that is indicative of the presence or absence of motion in the current image.

REFERENCES:
patent: 4864394 (1989-09-01), Gillard
patent: 4964699 (1990-10-01), Inoue
patent: 5057921 (1991-10-01), Robert et al.
patent: 5067015 (1991-11-01), Cambridge et al.
patent: 5461655 (1995-10-01), Vuylsteke et al.
patent: 5477272 (1995-12-01), Zhang et al.
Stollnitz et al., "Wavelets for Computer Graphics", IEEE Computer Graphics and Applications, May, 1995, pp. 76-84.

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