Supercharge Your Innovation With Domain-Expert AI Agents!

Intraprediction method and apparatus using video symmetry and encoding and decoding method and apparatus

一种帧内预测、视频解码的技术，应用在视频编码和解码领域

Inactive Publication Date: 2006-12-06
SAMSUNG ELECTRONICS CO LTD
View PDF1 Cites 40 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the intra prediction method according to the related art, prediction is performed only by using adjacent pixels without effectively using such symmetry

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
  • Intraprediction method and apparatus using video symmetry and encoding and decoding method and apparatus
  • Intraprediction method and apparatus using video symmetry and encoding and decoding method and apparatus
  • Intraprediction method and apparatus using video symmetry and encoding and decoding method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Figure 4 is a flowchart illustrating an intra prediction method using symmetry of video according to an example embodiment of the present invention, and Figure 5 An example of an input video encoded by an intra prediction method using symmetry of a video according to an exemplary embodiment of the present invention is illustrated.

[0032] In the intra prediction method according to an exemplary embodiment of the present invention, an area to be encoded in a video is predicted by using the axis symmetry of another area of ​​the video.

[0033] Specifically, in the intra prediction method according to the present invention, a symmetric region is detected from a video, and a part of the symmetric region is mirrored with respect to a symmetry axis to eliminate spatial redundancy, thereby improving compression efficiency. This mirroring is used to predict a part of the symmetric region using the axial symmetry of the already encoded part of the symmetric region with resp...

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

An intraprediction method which improves compression efficiency using the symmetry of a video image in the intraprediction of the video, and a video encoding and decoding method and apparatus using the intraprediction method. The intraprediction method includes performing intraprediction by predicting a first region to be encoded in a video based on axial symmetry of a second region of the video with respect to a predetermined axis.

Description

technical field [0001] Apparatuses and methods consistent with the present invention relate to intraprediction of video, and, more particularly, to intraprediction using symmetry of video in intraprediction of video to improve compression efficiency, and using the intraprediction Predictive methods for video encoding and decoding. Background technique [0002] In well-known video compression standards such as MPEG-1, MPEG-2, MPEG-4 Vision, H.261, H.263, and H.264, generally, a picture is divided into macroblocks for video encoding. After encoding each macroblock in all available coding modes in intra prediction and interprediction, the bit rate required to encode the macroblock in the coding mode, and the ratio between the original macroblock and the decoded macroblock Compare the rate-distortion (RD) penalty between them. Then, an appropriate encoding mode is selected according to the comparison result, and the macroblock is encoded in the selected encoding mode. [0003...

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): H04N7/32H04N19/593
CPCH04N19/00278H04N7/26026H04N7/26244H04N19/00042H04N19/00775H04N7/26122H04N19/00139H04N7/30H04N19/11H04N19/136H04N19/176H04N19/60H04N19/51
Inventor 孙有美朴正燻李相来金昭营
Owner SAMSUNG ELECTRONICS CO LTD
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