感兴趣区域分割的非平衡多描述视频编码

Novel unbalanced multiple description coding scheme for video using ROI segmentation

视频序列中感兴趣区域信息的丢失将导致视频质量的严重下降,通过一定的算法检测出感兴趣区域,并通过修改H.264编码标准中的数据分割算法,把这部分信息的Inter宏块放入B类数据分割中,然后对新形成的三类数据运用非平衡多描述编码方法进行编码,实验结果表明,该方法在网络出错时可以有效地保证视频中感兴趣区域的数据,很好地改善接收到的视频质量。

The lost of information in the attraction regions will decrease the quality of the video.This paper detects the attraction regions using some method and puts this data of inter-macroblocks into B-kind data partition through modifying the approach defined in H.264.Then it encodes the newly-formed three separate data using unbalanced multiple description method.The simulations show that the proposed method can effectively protect the data in the regions of interest and gain better subjective video quality than other unbalanced multiple coding methods.