Abstract:

To reduce the time complexity and the bit rate of interframe mode decision in H.264 standard we propose a fast inter mode selection algorithm. The algorithm uses the Surendra algorithm in target detection technology and the proposed selection algorithm for speed and direction features to determine the best inter prediction mode in advance, thus reducing the time complexity. The experimental results show that the algorithm can effectively reduce both the encoding time and the bit rate, while guaranteeing the quality of the reconstructed videos. The overall performance of our algorithm is better than the H.264 standard algorithm and the common inter frame mode selection algorithm. Moreover, for the videos which contain a lot of quiet background or only contain few of lowspeed motions, the performance of the algorithm is much better.

Key words: video coding;inter frame mode selection;background-difference algorithm