Real-Time R-D Optimized Frame-Skipping Transcoder for Low Bit Rate Video Transmission

Abstract

For the low bit rate (LBR) video communications, LBR transcoding is performed by the transcoder to match the network bandwidth and the performance of the client. One of typical transcoding schemes is a reduced temporal resolution reduction transcoding that enables adapting the bit rate requirements of a network by using frameskipping method. In this paper, in order to provide better visual quality for frameskipping transcoding while reducing computational complexity, we presents a new rate-distortion (R-D) optimized dynamic frameskipping (DFS) transcoder for LBR video transmission in the compressed domain. Experimental results show that the proposed transcoder performs better than the conventional frame-skipping method.

Adapting the Streaming Video Based on the Estimated Position of the Region of Interest

“…Therefore, the data size of a video stream should be adapted according to the network bandwidth [3], [4].…”

Sub-frame crossing for streaming video over wireless networks

“…Therefore the transmission rate of streaming video should be reduced according to the bandwidth of the communication networks [8] [9]. Network adaptation refers to how many network resources (e.g., bandwidth) a video stream should utilize for video content, resulting in designing an adaptive streaming mechanism for video transmission [10].…”