ROI-Based Transmission for H.264/AVC Conversational Video

It is also a challenge for transmission for conversational wucu u conversational video this paper, we propose a low-complexity error resilient coding scheme for H. 264/AVC communications. For the conversational video, the attention-attracted areas make more contributions to the perceptual quality for end users. Therefore, the proposed scheme combines the fast region-of-interest (ROI) segmentation and the long-term reference (LTR) frame coding in order to improve the perceptual quality of ROI areas. The scheme can be easily integrated into the H. 264/AVC encoder. Simulation results verify the robustness and coding efficiency as well as improved subjective visual quality.