An Adaptive Multi-View Video Error Concealment Method Based on Residual Blocking
A multi-view video, error concealment technology, applied in the field of adaptive multi-view video error concealment based on residual difference block, can solve the problems of low redundancy, error propagation, high correlation, etc.
Active Publication Date: 2021-09-07
西安华企众信科技发展有限公司
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Although the new generation of multi-view video coding standard MV-HEVC has greatly improved the compression efficiency of multi-view video, the high compression rate means low redundancy and high correlation between frames, that is, once data packet loss occurs, the impact will be Not just the frame of the lost frame, the packet loss problem will affect all frames associated with the lost frame, causing error propagation
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[0058] The present invention will be further described in detail in conjunction with the following specific embodiments and accompanying drawings.
[0059] Such as figure 1 , an adaptive multi-view video error concealment method based on residual block. First, the residual reconstruction of the lost block is carried out according to the residual information of the lost block and the adjacent blocks, and then according to the local residual value of the lost block and the overall residual value The size of the difference is used for preliminary block division, and the optimal matching block is found in the reference frame by searching, and the division mode of the lost block is refined according to the division information of the optimal matching block, and then the sub-block is reconstructed based on the residual information Sequentially sort, and finally reconstruct the lost sub-blocks sequentially based on the boundary similarity or inter-view information. The specific reco...
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The invention relates to an adaptive multi-viewpoint video error concealment method based on residual block. Once a data packet loss occurs in MV-HEVC, a new generation of multi-view video coding standard, it will affect all frames associated with the lost frame, resulting in error propagation. The method of the present invention aims at the phenomenon of packet loss in the middle viewpoint video stream in the multi-viewpoint video. Firstly, the residual information of the missing block and the available adjacent blocks are used to reconstruct the residual of the lost block, and then the mode of the lost block is divided according to the residual value, and the division is completed. Finally, based on the residual information, the sub-blocks divided by the lost block are reconstructed in order, and finally the lost block is reconstructed based on the reconstruction order combined with the time-space domain information and inter-view information. This method combines the space-time domain information and inter-frame information of the adjacent blocks of the lost block, and has a good reconstruction effect on the problem of the mid-viewpoint stream loss of multi-viewpoint video.
Description
technical field [0001] The invention belongs to the technical field of video encoding and decoding, and in particular relates to an adaptive multi-viewpoint video error concealment method based on residual block. Background technique [0002] Multi-view video has strong interactivity and immersive user experience, but corresponding to it is several times the data volume of single-view video. Although the new generation of multi-view video coding standard MV-HEVC has greatly improved the compression efficiency of multi-view video, the high compression rate means low redundancy and high correlation between frames, that is, once data packet loss occurs, the impact will be Not just the frame of the lost frame, the packet loss problem will affect all frames associated with the lost frame, causing error propagation. Error concealment technology can effectively reconstruct lost frames by using information that has been correctly received by the decoder, so it is widely used in mul...
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IPC IPC(8): H04N19/895H04N19/176
CPCH04N19/176H04N19/895
Inventor 周洋谢菲尉婉丽周辉陆宇殷海兵黄晓峰
Owner 西安华企众信科技发展有限公司