从视频读取帧，提取Sift特征点，进行特征点的匹配，合成视频-read frame from a video,get the sift feature,and match,then make a new video

用于视频压缩中的运动估计，由锚定帧输出预测帧、预测误差及PSNR与运行时间值-For video compression motion estimation, the prediction frame, the prediction error and the PSNR and run time value output by the anchor frame

用于视频拷贝检测的，提取关键帧后，进行视频关键帧序列匹配，-For video copy detection, key frame extraction for video key frame sequence matching,

For the detection of sign each frame is analysed. First the image is Converted into gray scale image and then threshold is performed. Then by using blob analysis portion of red part is extracted. Then this extracted part is compared with each t