Invention Grant
US08798145B2 Methods for error concealment due to enhancement layer packet loss in scalable video coding (SVC) decoding
有权
由于可扩展视频编码(SVC)解码中的增强层丢包引起的错误隐藏方法
- Patent Title: Methods for error concealment due to enhancement layer packet loss in scalable video coding (SVC) decoding
- Patent Title (中): 由于可扩展视频编码(SVC)解码中的增强层丢包引起的错误隐藏方法
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Application No.: US12737497Application Date: 2009-07-21
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Publication No.: US08798145B2Publication Date: 2014-08-05
- Inventor: John Qiang Li , Zhenyu Wu , Xiuping Lu
- Applicant: John Qiang Li , Zhenyu Wu , Xiuping Lu
- Applicant Address: FR Boulogne-Billancourt
- Assignee: Thomson Licensing
- Current Assignee: Thomson Licensing
- Current Assignee Address: FR Boulogne-Billancourt
- Agent Robert D. Shedd; Reitseng Lin
- International Application: PCT/US2009/004233 WO 20090721
- International Announcement: WO2010/011295 WO 20100128
- Main IPC: H04N7/12
- IPC: H04N7/12 ; H04N7/26 ; H04N7/46 ; H04N7/68

Abstract:
Methods for concealing Scalable Video Coding (SVC) decoding errors. Lost pictures in the target layer are replaced with up-sampled pictures from a lower layer, such as the base layer. In multiloop decoding applications, lost pictures in the target layer are replaced with corresponding up-sampled pictures from the lower layer. Subsequent target layer pictures in the same Group of Pictures (GOP) are either replaced with corresponding upsampled pictures from the lower layer, or they are decoded with up-sampled pictures from the lower layer used as reference pictures. For single-loop decoding, the bit stream of each layer is buffered, for each GOP, and inspected for errors. If an error is detected in the target layer, the pictures of the highest level layer without an error are decoded and up-sampled and used as the output pictures for the current GOP.
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