| 基于PC的SIMD技术在1／4像素精度运动预测中的应用 |
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| 引用本文： | 李春林 李国兵. 基于PC的SIMD技术在1／4像素精度运动预测中的应用[J]. 重庆邮电学院学报(自然科学版), 2005, 17(1): 46-49 |
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| 作者姓名： | 李春林 李国兵 |
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| 作者单位： | 西安电子科技大学信息科学研究所，西安电子科技大学信息科学研究所 陕西西安710071，陕西西安710071 |
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| 摘 要： | 在最新的视频编码标准H．264／AVC中，运动预测的精度达到1／4像素。为了提高运动预测的速度，要求实现运动预测过程的SIMD并行运算，其间遇到的最大问题就是1／4像素精度参考图像的传统储存方式不适合并行操作，针对此问题提出了一种新的适合并行操作的参考图像组织方法，并采用Intel MMX和SSE技术实现了运动预测过程的SIMD并行运算，减少了整个运动预测过程消耗的时间。
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| 关 键 词： | 运动预测 视频编码 像素精度 |
Application of SIMD technology to PC in 1/4 pixel accuracy motion prediction |
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| LI Chun-lin,LI Guo-bing. Application of SIMD technology to PC in 1/4 pixel accuracy motion prediction[J]. Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition), 2005, 17(1): 46-49 |
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| Authors: | LI Chun-lin LI Guo-bing |
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| Abstract: | The accuracy of motion prediction in latest video coding standard H.264/AVC is up to 1/4 pixel. To speed up the process of motion prediction, the implementation of parallel operation based on SIMD(single-instruction multidata) technology is demanded, during which the problem comes up that the traditional storage of 1/4 pixel accuracy reference picture does not facilitate parallel operation. To solve the problem, a new scheme for arranging the reference picture is proposed in this paper, through which parallel operation of motion prediction is implemented by applying Intel MMX and SSE technology and the time cost is reduced in the whole procedure of motion prediction. |
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| Keywords: | motion prediction video coding pixel accuracy |
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