| US 7,394,852 B2 | ||
| Method for detecting a moving object in motion video and apparatus | ||
| Takeshi Chujoh, Tokyo (Japan); Yoshihiro Kikuchi, Yokohama (Japan); Akira Sakuma, Yokahama (Japan); Toshifumi Hayashi, Yokohama (Japan); and Hiroyuki Kobayashi, Tokyo (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Kawasaki-shi (Japan) | ||
| Filed on Sep. 10, 2004, as Appl. No. 10/937,859. | ||
| Application 10/937859 is a continuation of application No. 09/654871, filed on Sep. 01, 2000, granted, now 6,876,701. | ||
| Claims priority of application No. 11-248851 (JP), filed on Sep. 02, 1999. | ||
| Prior Publication US 2005/0031041 A1, Feb. 10, 2005 | ||
| Int. Cl. H04N 7/12 (2006.01) | ||
| U.S. Cl. 375—240.08 [375/240.13] | 4 Claims |
| 1. A video moving object detecting apparatus comprising:
a determination unit configured to determine whether a video signal corresponding to a unit area represents a background area
or a non-background area, the video signal being part of a reconstructed video signal acquired by a video decoder which decodes
encoded data obtained by compression-encoding a motion video signal;
a detection unit configured to detect adjacent unit areas representing the non-background area using a determination result
of the determination unit for each unit area to determine the adjacent unit areas as an area of a moving object;
a first calculator which computes a cross correlation value between a current frame of the reconstructed video signal and
a video signal preceding by one frame every unit area;
a storage unit configured to store a background video signal corresponding to a background component of the reconstructed
video; and
a second calculator which computes a second cross correlation value between the current frame of the reconstructed video signal
and the background video signal stored in the storage unit every unit area;
wherein the determining unit includes a section which determines whether the video signal in the unit area is a background
area or a non-background area on the basis of encoding mode information obtained from the video decoder section, the first
cross correlation value and the second cross correlation value.
|