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

Stereo video coding method based on modified view lifting schemes

A technology of stereoscopic video coding and video image, applied in the field of stereoscopic video coding based on VLS, can solve the problems of low compression rate, no use of stereoscopic images, etc., to achieve the effect of ensuring quality and good scalability

Active Publication Date: 2011-08-10
INFORMATION & COMM BRANCH OF STATE GRID JIANGSU ELECTRIC POWER +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is relatively simple, but it does not use the inherent connection between stereo image pairs, and the compression rate obtained is relatively small, which cannot meet the actual use.

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
  • Stereo video coding method based on modified view lifting schemes
  • Stereo video coding method based on modified view lifting schemes
  • Stereo video coding method based on modified view lifting schemes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The technical solutions of the present invention will be further described below in conjunction with the drawings and embodiments.

[0028] The wavelet parameters of an image are usually obtained through a dyadic filter. If accurate reconstruction is required, we need to use Lifting Schemes because it can generate integer wavelet parameters. For simplicity, only separable decompositions are considered. Therefore, the decomposition result can be addressed in one direction. The structure of VLS is as follows figure 1 shown. we use I (l) , I (r) represent the left and right video images respectively, and at each level j, the parameters (m x , 2m y ), (m x , 2m y ), (m x , 2m y +1), (m x , 2m y The odd-even sampling of +1) is an input parameter of the boosting method. We use V j =(v x，j , v y，j ) T Represents the effective disparity vector, by adopting the initial disparity vector V=(v x , v y ) T and divide by 2 j get, ie

[0029] ...

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 stereo video coding method based on modified view lifting schemes (VLS). The method uses a dyadic filter to obtain the wavelet coefficients of the left and right video images, and the lifting schemes are adopted to rebuild the left and right video images to obtain the detailed coefficients and approximation coefficients of the left and right video images. The method of the invention uses the modified VLS structure to input stereo video sequence and code the generated coefficients. Though for the progressive rebuilding, the coding method needs to admit quality scalability. coefficients are coded in sequence according to different importances. A codec meeting the digital audio and video encoding and decoding technical standard (AVS) is adopted, as the codec has good compression efficiency and quality scalability.

Description

technical field [0001] The invention relates to the technical field of multimedia signal processing, in particular to the technical field of a VLS-based stereoscopic video coding method developed in video compression coding. Background technique [0002] As we all know, the digitization of image signal has a series of advantages in image processing, but the image data after digitization is quite huge. If you want to digitally transmit a frame of NTSV color video without compression processing, the transmission capacity of the channel is required to reach 248Mbit / S. A high-end film image with super 35 frames is digitized into 4096 pixels x 3112 lines, and each pixel in each color is represented by 10 bits. If 24 frames of images are transmitted per second, then one second of color film images needs about 9Gbit storage space. Calculated according to such data transmission rate, in the case of no image compression, a CD with a storage space of about 5Gbit can store about 20s ...

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 Patents(China)
IPC IPC(8): H04N7/26H04N13/00H04N19/597H04N19/63
Inventor 王翀赵力邹采荣
Owner INFORMATION & COMM BRANCH OF STATE GRID JIANGSU ELECTRIC POWER
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com