Rate-distortion optimized unequal loss protection for video transmission over packet erasure channels

作者：

Highlights：

• Accurate packet-level distortion prediction is essetial in Unequal Loss Protection (ULP).

• Optimal ULP allocation is formulated as a constrained optimization problem with packet priority and dynamic channel conditions jointly considered.

• Contributions of video packets in unsuccessfully decoded BOPs are explicitly considered rather than ignored in existing methods.

• Particle Swarm Optimization-based evolutionary algorithm is developed to obtain the optimal ULP allocation.

• Superior performance over existing methods and up to 2 dB gain in the reconstructed video quality is registered.

摘要

•Accurate packet-level distortion prediction is essetial in Unequal Loss Protection (ULP).•Optimal ULP allocation is formulated as a constrained optimization problem with packet priority and dynamic channel conditions jointly considered.•Contributions of video packets in unsuccessfully decoded BOPs are explicitly considered rather than ignored in existing methods.•Particle Swarm Optimization-based evolutionary algorithm is developed to obtain the optimal ULP allocation.•Superior performance over existing methods and up to 2 dB gain in the reconstructed video quality is registered.

论文关键词：Video transmission,Resource allocation,Unequal Loss Protection (ULP),Transmission distortion modeling,Particle Swarm Optimization (PSO)

论文评审过程：Received 28 January 2013, Revised 11 April 2013, Accepted 31 May 2013, Available online 18 June 2013.

论文官网地址：https://doi.org/10.1016/j.image.2013.05.009