数字地面电视广播系统的容错方案

2001 IEEE Workshop on Signal Processing Systems. SiPS 2001. Design and Implementation (Cat. No.01TH8578) Pub Date : 2001-09-26 DOI:10.1109/SIPS.2001.957353

Chuxiang Li, Jianhua Lu, Jun Gu, Ming L. Liou

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引用次数: 3

摘要

为了支持数字地面电视广播(DTTB)系统中的鲁棒视频传输，提出了一种与MPEG-2标准相结合的容错方案。特别提出了一种基于时间错误隐藏和块匹配方法的隐藏算法。该算法实现了有效的隐蔽性，同时保持了较低的计算复杂度和较小的块匹配搜索窗口。同样，开发了对孤立i -图像的有效接收。此外，结合有效的空间/时间活动检测，进一步设计了自适应错误隐藏方案。大量的仿真结果表明，即使在分组错误率很高的DTTB系统中，所提出的抗错误率方案也能实现高效、鲁棒的视频传输。

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Error resilience schemes for digital terrestrial TV broadcasting system

An error-resilient scheme incorporated with the MPEG-2 standard is developed to support robust video transmission in digital terrestrial TV broadcasting (DTTB) systems. In particular, a novel concealment algorithm based on temporal error concealment and block-matching methodology is proposed. This algorithm achieves an effective concealment while keeping low computational complexity with small size of search-window for block-matching. Likewise, an effective reception for isolate I-pictures is developed. Moreover, combining with an efficient detection of spatial/temporal activity, an adaptive error concealment scheme is further contrived. Extensive simulations have confirmed that the proposed error-resilient schemes may achieve efficient and robust video transmission in a DTTB system even with a very high packet error rate.

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来源期刊

2001 IEEE Workshop on Signal Processing Systems. SiPS 2001. Design and Implementation (Cat. No.01TH8578)

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