A real-time system of distributed video coding

28th Picture Coding Symposium Pub Date : 2010-12-01 DOI:10.1109/PCS.2010.5702557

K. Sakomizu, T. Yamasaki, Satoshi Nakagawa, T. Nishi

引用次数: 6

Abstract

This paper presents a real-time system of distributed video coding (DVC). DVC is a current video compression paradigm. The decoding process of DVC is normally complex, which causes difficulty in real-time implementation. To address this problem, we propose a new configuration of DVC with three methods: simple rate control without the feedback channel, simple transmitting of dynamic range and simple bidirectional motion estimation to reduce complexity. Then we implement the system with parallelization techniques. We also develop the encoder for a low power processor. Experimental results show that the encoder on i.MX31 400 MHz could operates at about CIF 13 fps, and the decoder on Core 2 Quad 2.83 GHz operates at more than CIF 30 fps.

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分布式视频编码的实时系统

提出了一种分布式视频编码(DVC)实时系统。DVC是当前的视频压缩范例。DVC的解码过程通常比较复杂，这给实时实现带来了困难。为了解决这个问题，我们提出了一种新的DVC结构，采用三种方法:简单的速率控制，不带反馈通道，简单的动态范围传输和简单的双向运动估计来降低复杂度。然后采用并行化技术实现系统。我们还开发了用于低功耗处理器的编码器。实验结果表明，在i.MX31 400 MHz上编码器的工作速度约为CIF 13 fps，在Core 2 Quad 2.83 GHz上解码器的工作速度超过CIF 30 fps。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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28th Picture Coding Symposium

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