First, the information of the foreground areas in current frame is obtained with global motion estimation and image registration between current frame and temporally adjacent frames.
首先，对待合成视频，通过全局运动估计与补偿，将相邻帧在空间上对齐到当前帧。通过计算帧差，得到当前帧中的运动前景区域信息。
The present invention has image pick-up to obtain image in sequence, and takes sample frame and current frame to estimate moving speed vector and calculate image displacement.
本发明提供的方法与装置，利用影像撷取装置以循序方式撷取数字影像，取出样本帧与当前帧，估计移动速度向量，并计算影像的位移量。
Background of image is corrected by using the current frame for motion compensation based on temporal integration.
当前帧与校正后背景图像作差得到差分图像。
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