运动补偿Wyner-Ziv视频编码

Jiong Sun, Haibo Li
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引用次数: 4

摘要

在Wyner-Ziv视频编码中,有效的压缩是通过利用解码器的源统计数据来实现的,这与传统的视频编码完全不同。Wyner-Ziv视频编解码器的性能在很大程度上取决于重构侧信息的质量。本文给出了一种显式运动补偿方案。与现有的方案不同,运动补偿是在侧信息和传输帧的量化版本之间进行的。这既不需要编码器向接收器传输额外的隐式运动信息,也不需要两个I帧来插值中间帧。这实现了顺序解码架构,这是实时视频编码的必要条件。我们的实验结果是有希望的。在重构帧的质量上实现了2dB增益
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Motion Compensated Wyner-Ziv Video Coding
In Wyner-Ziv video coding, efficient compression is achieved by exploiting source statistics at the decoder only, which is radically different from conventional video coding. The performance of a Wyner-Ziv video codec is greatly dependent on the quality of reconstructed side information. In this paper we give an explicit motion compensation scheme. Unlike existing schemes, motion compensation is carried out between side information and the quantized version of the transmitted frame. This needs neither the encoder to transmit additional, implicit motion information to the receiver nor two I frames for interpolating the middle frames. This enables a sequential decoding architecture, which is a necessity for real-time video coding. Our experimental results are promising. 2dB gain in the quality of reconstructed frames has been achieved
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