2016/2017
Efficient mode decision with enhanced sampling algorithm for HEVC
18th IEEE International Symposium on A World of Wireless, Mobile and Multimedia Networks, (WoWMoM 2017), Macau, China, June 2017, article no.7974328,
| Author(s) | Sio-Kei Im/
Ka-Hou Chan |
|---|---|
| Summary | Compared with H.264/AVC, H.265/HEVC achieves better image quality at the same coding bit rate, but requires more complexity in its coding process. In this paper, we propose a fast inter/intra decision method that can reduce the required encoding time with very little increase in required rate and PSNR degradation. We also introduce the weighted sampling and adaptive threshold condition to determine the CU splitting. In addition, a fast CU size selection algorithm based on image complexity for inter-frame coding is proposed. Experiments show that the proposed method provides a significant improvement in computing requirements, and can achieve a reasonable compromise between coding quality and efficiency. |