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一般基于预测的算法采用块匹配算法来消除相继帧简单冗余。通常,基于块的运动估计快速搜索算法采用的是减少搜索点的快速算法,文中介绍了一种适用于窄带低码率活动图像的帧间预测编码方法。根据H.264标准中的算法和编码方案,提出了一种帧间预测的硬件实现架构。运动预测完全针对亮度分量,采用基于中心预测和中途截止的快速搜索,给出了搜索窗结构。最后对其编码效果进行了分析。
The general prediction-based algorithm uses a block matching algorithm to eliminate successive frame simple redundancies. In general, the block-based motion estimation fast search algorithm uses a fast algorithm to reduce search points. In this paper, an inter-frame prediction coding method suitable for narrow-band and low-bit-rate moving images is introduced. According to the algorithm and coding scheme in the H.264 standard, a hardware architecture for inter-frame prediction is proposed. The motion prediction is completely directed to the luminance components, and the search window structure is given by fast searching based on the center prediction and the midway stop. Finally, the coding effect was analyzed.