一种面向视频应用的实时差错控制算法

为提高实时视频服务的差错恢复能力，提出了一种基于改进的参考图像选择和数字水印的差错控制算法。在编码过程中，根据图像内容的运动特性，自适应选择参考图像，同时进行差错恢复信息提取，利用改进的FM0进行宏块分组和恢复信息嵌入；在宏块出错时，从对应的宏块组中提取出错恢复信息。实验结果表明，该算法对提高视频序列的差错恢复能力有一定的作用。

An Effective Real-time Error of Control Scheme for Video Codec

A novel error control scheme based on self-adaptive RFS（reference frame selection） and digital watermarking is proposed to improve the quality of video service. In the process of video coding, RF is adaptively selected according to the context of every intra-block with EC（error-concealment） features extracted. Simultaneously, every macroblock is allocated in macroblock pairs by improved FMO（flexible macroblock ordering）. Those features are then embedded into the corresponding MB pairs by watermarking. When errors occur, the features are dispatched to conceal destructed blocks. Experimental results show that the proposed method could enhance the overall EC ability of corrupted video.