Distortion-aware Retransmission of Video Packets and Error Concealment Using Thumbnail
نویسنده
چکیده
In this project, we investigate retransmission-based robust video streaming over lossy packet networks. We propose to send a low-rate video thumbnail, which is a projected representation of the video content, along with the video packets. The receiver decodes the video with the help of error concealment to compensate packet loss. Upon receiving the thumbnails, the receiver can estimate the local distortions due to packet loss, and make intelligent decisions on which packets are needed for retransmission based on the distortion information. Furthermore, additional gain in video quality can be achieved by using thumbnail to guide error concealment mode selection. Our experiment results demonstrate gains over previously proposed distortionunaware heuristic methods.
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