【摘要】 根据图像序列运动矢量时间、空间分布特性,针对H.264图像压缩提出了一种基于六边形搜索派生的运动估计快速算法,采用双六边形与小菱形结合的搜索模板,减少了搜索点数,降低了运算复杂度.算法部分和编码器其他部分的Verilog模块结合在FPGA上进行了仿真,结果表明,该算法与全搜索、六边形搜索、菱形搜索和不对称十字与多六角形网格混合搜索等算法相比较,在保证图像质量的前提下,具有减少运算量和复杂度的优点.更多还原

【Abstract】 In this paper,author proposes a novel technique for fast motion compensation which chooses different search pattern according to the type of video sequences.The paper proposes a double hexagon and diamond search pattern aimed at the video sequences to reduce the search points.The experimental results justify that the proposed algorithm can reduce the computation complexity as well as maintain the image quality.更多还原