Apparatus and computer program for detecting motion in image...

Details Apparatus and computer program for detecting motion in image... Apparatus and computer program for detecting motion in image...

2007-10-23

2007-10-23

Chen, Wenpeng (Department: 2624)

Image analysis

Image compression or coding

Interframe coding

C382S103000

Reexamination Certificate

active

10650727

ABSTRACT:
An object of the present invention is to precisely and stably detect a motion in an monitoring image, excluding effects of an illumination change and flicker. The frame division means divides an inputted X-th image frame F (X) into a plurality of blocks B(X)ij. Representative (e.g, average) luminance values BLrep (X)ij of block B (X) ij, a representative luminance value FLrep (X) of F (X), block luminance differences ΔBLrep (X)ij between the frame F (X) and a frame prior to F (X) and a frame luminance difference ΔFLrep (X) between the present frame F (X) and a frame prior to F (X) are calculated. Then, a certain block is determined to include a motion, if | ΔBLrep (X)ij−ΔFLrep (X) | for that certain block is greater than a prescribed threshold. The threshold may be adaptively changed in accordance with the luminance state.

REFERENCES:
patent: 5327232 (1994-07-01), Kim
patent: 5731832 (1998-03-01), Ng
patent: 5790695 (1998-08-01), Suwa
patent: 6233008 (2001-05-01), Chun
patent: 6591015 (2003-07-01), Yasunari et al.
patent: 6819713 (2004-11-01), Sato
patent: 6954225 (2005-10-01), Chen
patent: 08046925 (1996-02-01), None
patent: 11039495 (1999-02-01), None

Affiliated with

Also associated with

Rating

Apparatus and computer program for detecting motion in image... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and computer program for detecting motion in image..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and computer program for detecting motion in image... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3826634