Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and apparatus for video decoding, computer facility, and storage medium

A video decoding and video technology, applied in the field of video decoding, can solve problems such as MV prediction loss, and achieve the effect of avoiding additional motion data storage

Active Publication Date: 2020-01-21
TENCENT AMERICA LLC
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other cases, the MV prediction itself may be lossy, e.g. due to round-off errors in computing the prediction from several surrounding MVs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and apparatus for video decoding, computer facility, and storage medium
  • Method and apparatus for video decoding, computer facility, and storage medium
  • Method and apparatus for video decoding, computer facility, and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] Various MV prediction mechanisms are described in H.265 / HEVC (ITU-T Recommendation H.265, "High Efficiency Video Coding", December 2016). Among the various MV prediction mechanisms provided by H.265, described in this application is a technique hereinafter referred to as "spatial merging".

[0046] Please refer to figure 1 , the current block (101) comprises samples that have been found by the encoder during the motion search process, which samples can be predicted from previous blocks of the same size for which spatial offsets have been generated. Additionally, the MV may be derived from metadata associated with one or more reference pictures, rather than encoding the MV directly. For example, using the MV associated to any of the five surrounding samples A0, A1 and B0, B1, B2 (102 to 106 respectively), the MV is derived (in decoding order) from the metadata of the nearest reference picture. MV. In H.265, MV prediction can use the predictor of the same reference pic...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Aspects of the disclosure provide methods and apparatuses for video encoding / decoding. In some examples, an apparatus for video decoding includes receiving circuitry and processing circuitry. The processing circuitry decodes prediction information of a current block in a current picture from a coded video bitstream. The prediction information is indicative of an affine model in a merge mode. The processing circuitry obtains, from a buffer, motion information of bottom locations in a neighboring block that is adjacent of the current block in the current picture, and determines parameters of theaffine model that is used to transform between the block and a reference block in a reference picture based on the motion information of the bottom locations in the neighboring block. Further, the processing circuitry reconstructs samples of the current block based on the affine model.

Description

[0001] This application claims priority to U.S. Provisional Application No. 62 / 697,999, "Methods for Affine Model Prediction in Video Coding," filed July 13, 2018, and U.S. Provisional Application No. 16 / 236,209, filed December 28, 2018 Priority to the formal application, both applications are hereby incorporated by reference in their entirety. technical field [0002] The present application relates to video decoding technology, in particular to a video decoding method and device, computer equipment and storage media. Background technique [0003] The background description provided herein is intended to illustrate the scope of the present invention. The work of the presently named inventors is neither expressly nor implicitly admitted to be prior art to the present invention with respect to aspects described in this Background section, and in respect of aspects that may not be considered prior art at the time of filing. [0004] Video encoding and decoding may be performe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/42H04N19/44H04N19/96H04N19/176H04N19/423H04N19/105H04N19/513H04N19/82H04N19/91H04N19/186
CPCH04N19/96H04N19/423H04N19/52H04N19/149H04N19/105H04N19/139H04N19/176H04N19/61H04N19/44
Inventor 李贵春许晓中李翔刘杉
Owner TENCENT AMERICA LLC