| 摘要 |
Techniques for detecting stationary targets in videos or frame images are described. According to one aspect of the present invention, a sequence of frame images is being received from a video system. Each of the frame images into a plurality of image blocks, and dividing a background image is divided into a plurality of corresponding background image blocks. Characteristic values of the image blocks in each of the frame images are calculated. A plurality of characteristic value sequences is then formed, each of the characteristic value sequences comprises a predefined number of characteristic values for each of the image blocks in the frame images. A histogram of each of the characteristic value sequences is computed to determine whether one of the image blocks in one of the frame images contains a stationary target.
|
