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Method and apparatus of disparity vector derivation in three-dimensional video coding

A parallax vector, multi-view video technology, applied in the field of video coding, can solve problems such as complex export operations

Active Publication Date: 2015-09-09
HFI INNOVATION INC
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Problems solved by technology

The export operation in the current HTM-5.0 is also very complicated

Method used

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  • Method and apparatus of disparity vector derivation in three-dimensional video coding
  • Method and apparatus of disparity vector derivation in three-dimensional video coding
  • Method and apparatus of disparity vector derivation in three-dimensional video coding

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Embodiment Construction

[0042] As mentioned above, in HEVC-based 3D / multi-view video coding, there are various problems in DV derivation and MVP derivation of 3D and multi-view video coding. Based on HTM version 5.0 (HTM-5.0), embodiments of the present invention simplify DV derivation and temporal MVP derivation in 3D and multiview video coding.

[0043] In one embodiment, the selection of temporally co-located images for DV derivation is simplified. Temporal co-located images for DV export can be stored in bitstream at sequence level (SPS), view level (VPS), picture level (PPS) or slice level (Slice Level) (title) for signal transmission. According to an embodiment of the present invention, the time-domain co-located image for DV derivation is derived at the encoder side and the decoder side through the following operations:

[0044] (1) Search for RAP in the reference image list. If a RAP is found, use that RAP as the temporal image and end the export operation. In case RAP is not available fo...

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Abstract

A derived disparity vector is determined based on spatial neighboring blocks and temporal neighboring blocks of the current block. The temporal neighboring blocks are searched according to a temporal search order and the temporal search order is the same for all dependent views. Any temporal neighboring block from a CTU below the current CTU row may be omitted in the temporal search order. The derived DV can also be used for predicting a DV of a DCP (disparity-compensated prediction) block for the current block in the AMVP mode, the Skip mode or the Merge mode. The temporal neighboring blocks may correspond to a temporal CT block and a temporal BR block. In one embodiment, the temporal search order checks the temporal BR block first and the temporal CT block next.

Description

[0001] Cross References to Related Cases [0002] The present invention claims the priority of the PCT patent application numbered PCT / CN2013 / 070278, filed on January 9, 2013 and titled "Disparity Vector (Disparity Vector, DV) derivation method". This PCT patent application is hereby incorporated by reference in its entirety. technical field [0003] The present invention is related to video coding (video coding), and more particularly, the present invention is related to three-dimensional (Three-Dimensional, 3D) video coding and multi-view (multi-view) video coding between viewpoints (inter-view) Motion prediction (motion prediction), inter-view residual prediction (residual prediction) or disparity-compensated prediction (Disparity-Compensated Prediction, DCP) The disparity vector prediction of the block is derived from the disparity vector. Background technique [0004] Three-dimensional television has become a technological trend in recent years, and its purpose is to ...

Claims

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Application Information

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IPC IPC(8): H04N19/597
Inventor 张娜陈渏纹林建良安基程张凯
Owner HFI INNOVATION INC
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