公开(公告)号：US20130251048A1

公开(公告)日：2013-09-26

申请号：US13772601

申请日：2013-02-21

Applicant: QUALCOMM INCORPORATED

Inventor： Chia- Yuan Teng ,  Sharath Manjunath

IPC: H04N7/68

CPC classification number: H04N19/159 ,  H04N19/107 ,  H04N19/117 ,  H04N19/142 ,  H04N19/166 ,  H04N19/174 ,  H04N19/895

Abstract: Error concealment is used to hide the effects of errors detected within digital video information. A novel spatial error concealment technique is disclosed for use when the error concealment mode decision determines that spatial error concealment should be used for reconstruction. The novel spatial error concealment technique divides a corrupt macroblock into multiple regions, such as, a corner region, a row adjacent to the corner region, a column adjacent to the corner region, and a remainder main region. Those regions are then reconstructed and information from earlier reconstructed regions may be used in later reconstructed regions. Finally, a macroblock refreshment technique is disclosed for preventing error propagation from harming non-corrupt inter-blocks. Specifically, an inter-macroblock may be ‘refreshed’ using spatial error concealment if there has been significant error caused damage that may cause the inter-block to propagate the errors.

Abstract translation: 错误隐藏用于隐藏数字视频信息中检测到的错误的影响。 当错误隐藏模式决定确定空间误差隐藏应用于重建时，公开了一种新颖的空间误差隐藏技术。 新颖的空间误差隐藏技术将损坏的宏块划分成多个区域，例如角区域，与角区域相邻的行，与角区域相邻的列，以及余数主区域。 然后重建那些区域，并且可以在稍后的重建区域中使用来自较早重建区域的信息。 最后，公开了一种宏块刷新技术，用于防止错误传播损害非破坏的块间。 具体地说，如果存在可能导致块间传播错误的严重错误导致的损坏，则可以使用空间错误隐藏来“刷新”宏块间宏块。