Journal of Computer Applications
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Xiao-Wei SONG Lei YANG
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宋晓炜 杨蕾
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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
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
CLC Number:
TP391.41
TN919.81
Xiao-Wei SONG Lei YANG. Middle-view based FGS scalable scheme for multi-view stereo video[J]. Journal of Computer Applications.
宋晓炜 杨蕾. 一种基于中间视点的多视点立体视频FGS可分级方案[J]. 计算机应用.
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http://www.joca.cn/EN/Y2007/V/I12/3058