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

Video coding/decoding method, equipment and storage medium

A video decoding and coded technology, applied in the field of template matching constraint technology, can solve the problems of strict template matching requirements, reduce template matching coding efficiency, etc., and achieve the effect of relaxing strict requirements, improving coding efficiency, and simplifying the technology.

Active Publication Date: 2020-01-21
TENCENT AMERICA LLC
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the restricted template matching requirements are too strict, reducing the coding efficiency of template matching

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
  • Video coding/decoding method, equipment and storage medium
  • Video coding/decoding method, equipment and storage medium
  • Video coding/decoding method, equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] 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".

[0035] Referring to Figure 1, a current block (101) includes samples that have been found by an encoder during a motion search process, which samples can be predicted from previous blocks of the same size that have generated a spatial offset. 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 from the metadata of the nearest reference picture (in decoding order). MV. In H.265, MV prediction can use the predictor of the same reference picture that the neighb...

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

A method of video decoding in a decoder is described. A coded video bit stream is received. A template of a first block in a picture in the received coded bitstream is determined in response to a determination that decoder-side motion vector derivation (DMVD) is applied to the first block for reconstruction. A first region of the template is determined to be overlapping with a second block that isdecoded prior to the first block. Further, a second region of the template is determined by subtracting the first region from the template. Motion information of the first block is derived using template matching based on reconstruction samples of the second region.

Description

[0001] Incorporated into this application by reference [0002] This application claims U.S. Provisional Application No. 62 / 696,536, "Constraints for Template Matching in Decoder-Side Motion Derivation and Correction," filed July 11, 2018, and U.S. Application No. 16 / 441,779, "Constraints for Decoder-Side Motion Derivation and Correction." Constrained Techniques for Template Matching in Motion Derivation and Correction," the provisional application incorporated herein by reference. technical field [0003] This application relates to video encoding and decoding techniques, and in particular to constraint techniques for template matching in decoder-side motion derivation and correction. Background technique [0004] The background description provided herein is intended to present the context of the application as a whole. To the extent that the work of the named inventors is described in the Background section and in the various aspects of this specification, it is not an a...

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): H04N19/107H04N19/13H04N19/176H04N19/51H04N19/82H04N19/96
CPCH04N19/13H04N19/107H04N19/82H04N19/176H04N19/96H04N19/51H04N19/52H04N19/577H04N19/463
Inventor 徐萌李翔刘杉
Owner TENCENT AMERICA LLC