Method and device for implementing interframe forecast based on relativity between future positions

An intra-frame prediction and correlation technology, applied in the field of telecommunications, can solve the problems of failing to meet the requirements of real-time processing of high-definition video data, high hardware overhead, etc., and achieve the goal of reducing hardware resource overhead, power consumption, and control logic delay. Effect

Inactive Publication Date: 2010-07-21
SHANGHAI JIAOTONG UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are following disadvantages: 1. Due to the adoption of a large amount of control logic, it can only work at a lower clock frequency (55MHz), thus failing to meet the requirements for real-time processing of high-definition video data (for 1920x1080, 4:2:0 format video, processing 30 frames per second); 2. Due to the use of 4-way parallel processing architecture, the hardware overhead is still relatively large

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 and device for implementing interframe forecast based on relativity between future positions
  • Method and device for implementing interframe forecast based on relativity between future positions
  • Method and device for implementing interframe forecast based on relativity between future positions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0042] This embodiment is based on the processing of a 4x4 block, including the following steps:

[0043] Step 1, send the required parameters such as the received macroblock type and prediction mode to the internal registers of the reference pixel register group for storage;

[0044] For the macroblock type, the high-end specification of H.264 adds an 8x8 macroblock type to the intra prediction part, while AVS adopts the 8x8 macroblock type. The difference between the two is: H.264 needs to obtain Reference pixels are filtered, while AVS does not.

[0045] The pred...

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 relates to an intra-frame prediction method and an intra-frame prediction device based on a correlation between prediction points in the video technical field. Firstly, the invention receives a macro block type, a prediction model parameter, an upside reference pixel and a left reference pixel. Then according to the received parameters of the prediction model and the macro block type, the upside reference pixel and the left reference pixel, a prediction computation of the current macro block and a renewal of the reference pixel are completed. Finally a computed prediction value is sent to reconfigurable modules outside. The device of the invention comprises a reference pixel register set, a reference pixel control unit, a basic operation unit and an output control unit. The invention supports H. 264 high-end specification and AVS standards to improve comprehensive frequency of design and at the same time has the advantages of low cost for hardware resource and low power consumption under the same data processing capability.

Description

technical field [0001] The present invention relates to a method and device in the technical field of telecommunications, in particular to a method and device for implementing intra-frame prediction based on correlation between prediction points. Background technique [0002] Video technology is widely used in the transmission and storage of video data, from which the original image can be fully or approximately restored. The intra-frame prediction technology uses the spatial correlation of image data to predict all current pixels using the nearest decoded pixel values ​​on the left and upper sides of the current block. In the H.264 standard, the smallest block processing unit defined is a 4x4 block, with 9 prediction modes for luma and 4 prediction modes for chroma; in the AVS standard, the smallest block processing unit defined is an 8x8 block , there are 5 prediction modes for luma, and 4 prediction modes for chroma. Among the prediction modes adopted by the AVS standar...

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): H04N7/32H04N7/26H04N19/156H04N19/157H04N19/176H04N19/42H04N19/593H04N19/70
Inventor 朱磊周大江刘佩林
Owner SHANGHAI JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap