| 基于内容复杂度的视频编码码率控制 |
| |
| 引用本文： | 唐田野,刘钊.基于内容复杂度的视频编码码率控制[J].电子与信息学报,2006,28(6):1115-1119. |
| |
| 作者姓名： | 唐田野 刘钊 |
| |
| 作者单位： | 电子科技大学电子工程学院,成都,610054;电子科技大学电子工程学院,成都,610054 |
| |
| 摘 要： | 该文根据线性模型提出信源内容复杂度的一种度量方式，并以此进行帧级比特分配和宏块级的视频码率控制。仿真表明该方法与MPEG2中的TM5相比，能比较显著地提高信噪比，实现更加准确的码率控制，同时可以在帧间和帧内获得更一致的视觉效果。该算法在MPEG4及低码率视频编码中也是适用的。
|
| 关 键 词： | 视频编码 码率控制 内容复杂度 |
| 文章编号： | 1009-5896（2006）06-1115-05 |
| 收稿时间： | 2004-10-19 |
| 修稿时间： | 2005-03-15 |
Rate Control Based on Content Complexity in Video Coding |
| |
| Tang Tian-ye,Liu Zhao.Rate Control Based on Content Complexity in Video Coding[J].Journal of Electronics & Information Technology,2006,28(6):1115-1119. |
| |
| Authors: | Tang Tian-ye Liu Zhao |
| |
| Affiliation: | Electronic Engineering School, University of Electronic Science and Technology of China ,ChengDu 610054, China |
| |
| Abstract: | A new video rate control scheme which uses linear source model as content complexity measure of video frames is proposed in this paper to implement bit allocation between frames and rate control over Micro Btocte(MB) level in one frame. Comparing with TM5, simulation results show that the proposed method can improve PSNR obviously and achieve more accurate rate control as well as more smooth objective and subjective visual quality even when scenes change. This algorithm is also applicable in MPEG4 and low rate video coding. |
| |
| Keywords: | Video coding Rate control Content complexity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《电子与信息学报》浏览原始摘要信息 |
|
点击此处可从《电子与信息学报》下载全文 |
