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

Method for determining HEVC merge and skip coding modes in advance

A technology that skips coding and is determined in advance. It is used in digital video signal modification, electrical components, image communication, etc., and can solve problems such as large computing costs.

Active Publication Date: 2016-11-16
杭州数颐科技有限公司
View PDF6 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a coding framework of "testing all possibilities and choosing the best" introduces a very large computational cost at the same time

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 for determining HEVC merge and skip coding modes in advance
  • Method for determining HEVC merge and skip coding modes in advance
  • Method for determining HEVC merge and skip coding modes in advance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] In order to describe the present invention more specifically, the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] Such as figure 1 As shown, the method flow for determining HEVC merging and skipping coding modes in advance in the present invention may include:

[0040] Step 101 , for the input coding unit, calculate the rate-distortion cost corresponding to the best candidate motion parameter of the current coding unit in merge mode, and record the sum of the absolute value of residuals of the coding unit. Specifically, the candidate motion parameters come from the prediction units adjacent to the current prediction unit in the spatial and temporal domains, and the encoder calculates the motion-compensated image and the prediction residual corresponding to each candidate motion parameter, and performs two-dimensional prediction on the prediction residual Disc...

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

The invention discloses a method for determining HEVC (High Efficiency Video Coding) merge and skip coding modes in advance. According to the method, after tests are carried out on coding of a coding unit in skip and merge modes, if the coding block residue absolute value sum corresponding to the better mode is smaller than a preset threshold value, the follow-up inter and intra modes of an HEVC standard, and a prediction unit division process are ignored; the coding mode of the coding block is determined to be the better one of the skip and merge modes in advance; and the computing complexity of an HEVC coder can be greatly reduced through little performance loss.

Description

technical field [0001] The invention belongs to the technical field of video image compression encoding, and in particular relates to a method for determining HEVC merging and skip encoding modes in advance. Background technique [0002] High Efficiency Video Coding (HEVC) takes the coding tree unit (CodingTree Unit, CTU) as the basic processing unit, and a CTU can contain only one coding unit (Coding Unit, CU) or downward in the form of a quadtree Divide into four CUs of equal size. Further, each CU with a size of 2N×2N (N can be 8, 16, or 32) can be further divided into four CUs with a size of N×N. In the CTU partition structure in the form of a quadtree, the CU as a leaf node gives the prediction mode of a certain square area in the CTU, namely: Intra (Intra), Inter (Inter), Skip (Skip) or Merge mode. Depending on the prediction mode, a CU can be divided into one, two or four prediction units (Prediction Unit, PU). For intra-frame coding, there are two optional PU par...

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): H04N19/103H04N19/147
CPCH04N19/103H04N19/147
Inventor 王靖韬
Owner 杭州数颐科技有限公司