Patent ID: 7394852

Claim:
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.