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一种基于中间视点的多视点立体视频FGS可分级方案

宋晓炜 杨蕾   

  1. 中原工学院 中原工学院
  • 收稿日期:2007-06-11 修回日期:1900-01-01 发布日期:2007-12-01 出版日期:2007-12-01
  • 通讯作者: 宋晓炜

Middle-view based FGS scalable scheme for multi-view stereo video

Xiao-Wei SONG Lei YANG   

  • Received:2007-06-11 Revised:1900-01-01 Online:2007-12-01 Published:2007-12-01
  • Contact: Xiao-Wei SONG

摘要: 基于MPEG-4标准FGS可分级技术,提出一种将FGS可分级、视点可分级相结合的多视点立体视频可分级算法。该算法中,中间视点作为基本层进行编码,各视点均预测自中间视点,并产生各相应视点的FGS增强层。编码器结构中,分为I、P、B帧三种情况进行讨论,并针对这三种情况进行改进。所提方案具有灵活、广泛的可分级性能,能适应多种不同的传输需求。实验结果验证了该方案的多视点可分级性。

关键词: 精细可分级视频编码, 可分级编码, 多视点, 立体视频

Abstract: Based on MPEG-4 FGS technology, a new scalable coding algorithm for multi-view stereo video was proposed, combining FGS scalability with views scalability. In the proposed algorithm, the middle-view sequence was coded as a base layer and a FGS enhancement layer, with other view sequences all predicted from the middle-view sequence yielding each view's FGS enhancement layers. In this coding structure, three cases (I, P, B frames) were considered, and the corresponding improvements had been implemented. The new method can provide a flexible scalability performance, and it can match many different kinds of transmission requirements. Experimental results proved the multi-view scalability performance of the proposed scheme.

Key words: Fine-Granular-Scalability Video-Coding (FGS), scalable coding, multi-view, stereo video

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