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Device and method for predictive coding in 3D or multi-view video coding system

A technology for multi-view video and coding systems, which is applied in stereo systems, digital video signal modification, image communication, etc., and can solve problems such as signal loss of high-frequency information, distortion of predicted and original values, and deterioration of predicted quality.

Active Publication Date: 2018-09-04
HFI INNOVATION INC
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Because the predicted value comes from the reconstructed pixels, even if the original pixels of the current block and the original pixels of the reference block are exactly the same, there is a distortion between the predicted value and the original value
In addition, since the reconstructed signal generally loses high-frequency information, the quality of the prediction is even worse when there are sharp pixel value changes in the reference block

Method used

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  • Device and method for predictive coding in 3D or multi-view video coding system
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  • Device and method for predictive coding in 3D or multi-view video coding system

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Embodiment Construction

[0029] The following description is of the best contemplated mode of carrying out the invention. This description is to illustrate the general principles of the invention and should not be construed as limiting the invention. The scope of the invention can best be determined by reference to the appended claims.

[0030] In order to improve the performance of predictive coding using predictive blocks, the present invention discloses a partitioned predictive process. According to one embodiment of the invention, the predicted block is processed through a partitioned prediction process before it is derived a residual at the encoder side or a reconstructed block at the decoder side. In another embodiment, the predicted block is processed through a partitioned prediction process, and then the corrected predicted block is output as a reconstructed block without increasing the residual. Figure 5 An example of a segmented region prediction architecture on the decoder side is shown....

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Abstract

A method and apparatus for processing a prediction block and using the modified prediction block for predictive coding of a current block are disclosed. Embodiments according to the present invention receive a prediction block for the current block and classify pixels in the prediction block into two or more segments. Each segment of the prediction block is then processed depending on information derived from each segment of the prediction block to form a modified prediction segment. The modified prediction block consisting of modified prediction segments of the prediction block is used as a predictor for encoding or decoding the current block.

Description

[0001] 【CROSS-REFERENCE TO RELATED APPLICATIONS】 [0002] The present invention claims to apply for a PCT patent application with serial number PCT / CN2014 / 080515 on June 23, 2014, a PCT patent application with serial number PCT / CN2014 / 087094 on September 22, 2014, and an application in Priority of PCT patent application with serial number PCT / CN2014 / 089040 dated October 21, 2014. The above PCT patent applications are incorporated herein by reference. 【Technical field】 [0003] The present invention relates to video coding. In particular, the present invention relates to classifying prediction blocks into segments and processing the segments separately to form processed-segmented prediction blocks. Next, the processed partition prediction block is used for predictive coding of the current block. 【Background technique】 [0004] Prediction plays a key role in video coding, where current video data is coded by using previously reconstructed video data or other derived data as...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/50H04N13/00
CPCH04N19/597H04N13/161H04N19/105H04N19/172H04N19/176H04N19/182H04N19/70
Inventor 张凯安基程张贤国黄晗林建良
Owner HFI INNOVATION INC