Rate Allocation Algorithm Based on Region of Interest and LCU Feature
In case of bitrate allocation strategy in HEVC does not consider visual redundancy,and LCU layer image content features are single,visual perception is reduced when viewing videos by eyes.A rate control algorithm based on region of interest and LCU features is proposed in this paper.A pre-trained target detection network detects region of in-terest in the video.A new weight calculation formula is constructed using the image features of texture complexity,distortion degree,and structural strength to adjust QP.Experimental results show that the subjective quality of the video can be im-proved with an average SSIM gain of 0.64％while maintaining objective quality under low-latency configuration.
万方数据
维普
