Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Video encoding method, and video decoding method and device

A video coding and video frame technology, applied in the coding field, can solve the problem of low coding compression, and achieve the effect of removing correlation, reducing the number of bits, and small size

Active Publication Date: 2016-04-27
LENOVO (BEIJING) CO LTD
View PDF9 Cites 30 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a video encoding and decoding method and device, which are used to solve the technical problem of relatively low encoding compression when encoding a video with a large amount of repetitive information

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 encoding method, and video decoding method and device
  • Video encoding method, and video decoding method and device
  • Video encoding method, and video decoding method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044]An embodiment of the present invention provides a video coding method, including: performing the following processing on each maximum coding unit corresponding to the current video frame, wherein the size of the maximum coding unit is a first size, and the first size is greater than 64* 64: According to the quadtree structure, divide the largest coding unit into coding units respectively; for each coding unit obtained according to different division methods, perform prediction according to at least one coding mode through the prediction unit divided by the coding unit , at least obtain the prediction residual corresponding to the coding unit in the at least one coding mode; Performing calculations to obtain a transformation coefficient matrix corresponding to the coding unit; wherein, the transformation unit is obtained by dividing the coding unit, and the transformation unit calculates the transformation coefficient matrix based on minimizing the coding rate distortion c...

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 video encoding method, which is used for increasing video encoding compression ratio. The video encoding method comprises the steps of: setting size of each maximum encoding unit corresponding to a current video frame to be greater than 64*64; dividing each maximum encoding unit into encoding units according to a quadtree structure; for each encoding unit, at least acquiring a corresponding prediction residual in at least one encoding mode through a divided prediction unit; for each encoding unit, calculating a transformation coefficient matrix corresponding to a transformation unit according to at least one prediction residual through the transformation unit; and determining an optimal dividing method according to the prediction residuals and the transformation coefficient matrixes corresponding to the maximum encoding units when different dividing methods are adopted. The invention further discloses a corresponding video decoding method and a corresponding video decoding device.

Description

technical field [0001] The present invention relates to the field of encoding technology, in particular to a video encoding and decoding method and device. Background technique [0002] HEVC (High Efficiency Video Coding, High Efficiency Video Coding) is a new video compression standard that can replace the H.264 / AVC (a video coding standard) coding standard to a certain extent. [0003] HEVC can increase the compression efficiency of 1080P video by about 50%, which means that the quality of the video will increase a lot, and it can save a lot of network bandwidth. For consumers, they can enjoy higher quality video content . [0004] However, in the prior art, many applications such as remote desktop access, remote gaming, and cloud computing have become very common. An important feature of such applications is that information such as text and computer-generated images are mixed in natural videos. Information such as text and computer-generated images may often repeatedly...

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
IPC IPC(8): H04N19/61H04N19/176H04N19/146H04N19/70H04N19/122H04N19/44
Inventor 姜东张学荣武亚强王哲鹏
Owner LENOVO (BEIJING) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com