Play-Out Constrained Dynamic Packet Loss Protection for Scalable Video Transmission

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概要

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• This paper analyzes the conventional unequal erasure protection (UXP) scheme for scalable video transmission, and proposes a dynamic hybrid UXP/ARQ transmission framework to improve the performance of the conventional UXP method for bandwidth-constrained scalable video transmission. This framework applies automatic retransmission request (ARQ) to the conventional UXP scheme for scalable video transmission, and dynamically adjusts the transmission time budget of each group of picture (GOP) according to the feedback about the transmission results of the current and previous GOPs from the receiver. Moreover, the parameter of target video quality is introduced and optimized to adapt to the channel condition in pursuit of more efficient dynamic time allocation. In addition, considering the play-out deadline constraint, the time schedule for the proposed scalable video transmission system is presented. Simulation results show that compared with the conventional UXP scheme and its enhanced method, the average peak signal to noise ratio (PSNR) of the reconstructed video can be improved significantly over a wide range of packet loss rates. Besides, the visual quality fluctuation among the GOPs can be reduced for the video which has much movement change.

著者

• Zhang Yu

  Department Of Chemistry And Pharmacy Jiamusi University

• Liu Jun

  Department Of Applied Chemistry China Agricultural University

• Song Jian

  Department Of Biochemistry And Molecular Biology College Of Life Sciences Nanjing Agricultural University

• SONG Jian

  Department of Electronic Engineering, Tsinghua National Laboratory for Information Science and Technology (TNLIST), Tsinghua University

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