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

Loop circuit filtering method

A loop filtering and macroblock technology, applied in the field of digital video encoding and decoding, can solve the problems of low image encoding and decoding efficiency and time-consuming off-chip data access operations, so as to reduce operation time and improve speed and efficiency. Effect

Active Publication Date: 2010-09-01
HISENSE
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as we all know, frequent access operations to off-chip data take a lot of time, so the efficiency of image encoding and decoding becomes low

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
  • Loop circuit filtering method
  • Loop circuit filtering method
  • Loop circuit filtering method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] First, the working principle of the present invention is briefly described. In the process of image decoding, the present invention does not immediately output the reconstructed macro block to the off-chip storage unit, but then performs loop filtering, and then outputs to the off-chip storage unit after the filtering operation. The present invention will be further described below in conjunction with the accompanying drawings.

[0045] In order to better understand the present invention, some basic components of the processing chip are briefly drawn below, and the present invention is explained with the help of these functional block diagrams. Of course, the actual structure of the processing chip is very complicated, and this example only briefly selects some of its components to help understand the present invention, and the block diagram of the processing chip in this example should not limit the present invention.

[0046] refer to figure 2 , illustrates the fun...

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 method comprises: the macro block finishing the reconstruction is not immediately sent out from the processing chip, and is made with filter operation; after filter operation, it is sent out from the processing chip. The invention saves the steps for outputting the macro block finishing the reconstruction and inputting macro block when making loop filer so as to improve the speed and efficiency of encode and decode.

Description

technical field [0001] The invention relates to digital video codec technology, in particular to a filtering method. Background technique [0002] A variety of current video codec standards, such as AVS and H.264, all use a macroblock-based coding framework for their video codec algorithms, which divide the input video into macroblocks for prediction, motion estimation, transformation, quantization, and entropy coding. Wait. Due to block, it will inevitably lead to virtual block effect, so the loop filter technology is introduced. [0003] All block boundaries of a macroblock shall be filtered except picture boundaries and slice boundaries. Here, the macroblock boundary is defined as the boundary of each block inside the macroblock (for example, AVS is 8*8 blocks). [0004] Loop filtering is in units of macroblocks, loop filtering in the prior art can refer to figure 1 . Such as figure 1 As shown, a schematic diagram of a macroblock. First, filter the vertical boundar...

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): H04N7/26H04N7/24H04N19/82
Inventor 田树民裴雷
Owner HISENSE
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