Method and device for building motion vector lists for prediction of motion vectors

A motion vector prediction and motion vector technology, which is applied in the field of video coding to achieve the effect of increasing the speed and improving the parallel processing capability.

Active Publication Date: 2013-01-16
HUAWEI TECH CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Embodiments of the present invention provide a method and device for establishing a motion vector list for motion vector prediction, which solves th

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  • Method and device for building motion vector lists for prediction of motion vectors
  • Method and device for building motion vector lists for prediction of motion vectors
  • Method and device for building motion vector lists for prediction of motion vectors

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] In the prior art, a CU may include at least two PUs, and the motion vector lists of the at least two PUs are established in a serial manner, that is, the next PU starts to establish the motion vector list after the current PU completes the motion vector list creation.

[0026] Specific can include:

[0027] Such as Figure 2a to Figure 2g As shown, a CU (implementation box in the figure) can be further divided into multiple PUs. In HEVC, a CU can have seven...

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Abstract

The invention provides a method and a device for building motion vector lists for prediction of motion vectors and relates to the field of video coding. The method and the device resolve the problem of adopting the serial mode to build motion vector lists of at least two physical units (PU) in one coding unit and improve parallel mode processing capability. The method and the device specifically include acquiring adjacent blocks on a current prediction block airspace, enabling a current prediction block to be located in a current coding unit, determining a proper adjacent block of the current prediction block according to the dividing mode of the current coding unit, enabling the proper adjacent block to be located outside the current coding unit, acquiring motion vector prediction value from the proper adjacent block according to the motion vector prediction value of the proper adjacent block and according to the preset sequence and adding the acquired motion vector prediction value into the motion vector lists. The method and the device can be used for building the motion vector lists.

Description

technical field [0001] The invention relates to the field of video coding, in particular to a method and a device for establishing a motion vector list for motion vector prediction. Background technique [0002] The inter-frame prediction technology in HEVC (High Efficiency Video Coding, high-efficiency video coding standard) adopts the traditional MCP (Motion Compensated Prediction, motion compensation prediction) method. In terms of motion vector prediction, HEVC adopts the method of multi-motion vector competition. Improves the accuracy of motion vector prediction, thereby improving encoding and compression performance. [0003] HEVC inter-frame prediction modes may include, but are not limited to: Merge mode (merge mode), Skip mode (skip mode), etc., all of which use the method of multi-motion vector competition for inter-frame prediction. When performing motion vector prediction, a motion vector list is used. For Merge mode and Skip mode, a maximum of 4 spatial motion...

Claims

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Application Information

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IPC IPC(8): H04N7/26H04N7/32H04N19/513
CPCH04N19/00684H04N19/00521H04N19/00733H04N19/00696H04N19/00024H04N19/105H04N19/176H04N19/436H04N19/46H04N19/463H04N19/52H04N19/139H04N19/43H04N19/513
Inventor 林永兵
Owner HUAWEI TECH CO LTD
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