H.264 / AVC real-time edge detection method in the compression zone

摘要

A real time edge detecting method in an H.264/avc compressing area is provided to analyze compressed video which in not decoded in real time, thereby obtaining economic effects. An image compressed in H.264/AVC is input. Prediction information of an image is detected by using an intra prediction mode information in a bit stream of an image. An image is analyzed by using the detected prediction information. A part of the prediction information of the detected image is converted by using the number of DCT residual encoding bits by DC prediction.