• 图形图像处理(Graphics and image processi • 上一篇 下一篇
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摘要: 对MPEG-4视频编码中的块运动估计算法进行分析,得出算法中存在的并行性。将多核并行计算的思想应用于方向菱形模板的运动估计算法中,并引入一种预测机制来充分提高并行性,得到基于多核并行预测的方向菱形运动估计算法(PPDDME)。在PC机和Omap5910 两个平台上的验证表明,该算法相比串行算法在保证了压缩质量的前提下,有效提高了编码速度。