| H.264中整数DCT变换及量化的DSP实现 |
| |
| 引用本文： | 刘宝兰,刘贵忠,苏睿. H.264中整数DCT变换及量化的DSP实现[J]. 微电子学与计算机, 2005, 22(6): 200-205 |
| |
| 作者姓名： | 刘宝兰 刘贵忠 苏睿 |
| |
| 作者单位： | 西安交通大学电子与信息工程学院信息与通信工程系,陕西,西安,710049 |
| |
| 基金项目： | 国家自然科学基金，教育部跨世纪优秀人才培养计划，国家"211"工程建设项目 |
| |
| 摘 要： | 在TI的TMS320DM642开发板上实现了H.264视频压缩编码标准中像素压缩模块的优化.重点对H.264协议中的整数DCT变换编码和量化进行了理论分析,并对其进行仿真及优化,有效地降低了整个模块的运行时钟数.实验结果表明该方法的优化取得了良好效果.
|
| 关 键 词： | H.264视频编码 整数DCT变换 优化 |
| 文章编号： | 1000-7180(2005)06-200-06 |
| 修稿时间： | 2005-01-05 |
Implementation and Optimization of Pixel-Compression Module in H.264 Based on DSP System |
| |
| LIU Bao-lan,LIU Gui-zhong,SU Rui. Implementation and Optimization of Pixel-Compression Module in H.264 Based on DSP System[J]. Microelectronics & Computer, 2005, 22(6): 200-205 |
| |
| Authors: | LIU Bao-lan LIU Gui-zhong SU Rui |
| |
| Abstract: | As an important content of H.264 compression standard, pixel-compression module is used to reduce the correlation of picture using integer transform, quantization coding. Generally, this module will consume most of the CPU time except for the motion estimation due to its complicated matrix operation. In this paper, 44 integer transform in H.264 is employed, which can reduce computational complexity and avoid occurrence of decoder mismatch. In order to satisfy the real-time requirement, an efficient optimization method of C code and assemble code for pixel-compression module is proposed and evaluated. Experimental results indicate that better performance can be achieved for this work. |
| |
| Keywords: | TMS320DM642 |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
