Abstract:

The HEVC video coding standard is the current most advanced video compression standard. Its compression performance is better than other current video compression standards. Most big companies in the world are developing the products based on this standard. However, the high computational complexity of this standard becomes the bottleneck of its implementation. Especially, the complexity of intraframe prediction component is more than twice that of the other video compression standards. Thus, a lot of fast intraprediction algorithms have been proposed in the literature. The paper reviews, analyzes, and simulates these algorithms, compares their performances, and points out their pros and cons. Based on this, we also describe how to chose a suitable algorithm under different implementation scenarios. Finally, the future development directions of these fast algorithms are discussed. Key words:

Key words: video compression;video coding;HEVC standard;intra prediction;fast intra prediction algorithms