A Novel Intra-Frame Quantization Parameter Selection Method
The rate control of Intra-frame plays a very important role on the coding quality of video sequences. To gain better video coding performance, a novel Intra-frame rate assignment framework is proposed in this paper. A video complexity based exponential R-Q model is first introduced, and then a novel quantization parameter choosing algorithm is developed. Experimental results have shown that the proposed algorithm introduces little delay and can not only control the bitrate more accurately, but conduct higher and even PSNR as well. Further more, the proposed algorithm can easily deal with scene switching situation and prevent the buffer overflow.
Jun Liu Canhui Cai
Institute of Information Science & Technology Huaqiao University Quanzhou, China
国际会议
2008 International Conference on Audio，Language and Image Processing(2008国际声音、语言、图像过程大会)
镇江
英文
1407-1411
2008-07-07（万方平台首次上网日期，不代表论文的发表时间）