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

A filtering method and device

A filter algorithm and algorithm technology, applied in the field of video codec, can solve problems such as large amount of computation

Active Publication Date: 2020-07-31
BEIJING QIYI CENTURY SCI & TECH CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the filtering method in the prior art, regardless of the strong filtering method or the weak filtering method, integer operations with more than eight-bit precision are required in the filtering process, resulting in a large amount of calculation for the existing filtering method

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
  • A filtering method and device
  • A filtering method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] It should be noted that the filtering method and device provided in the embodiments of the present invention are preferably applicable to video codec equipment.

[0032] Specifically, in practical applications, the video codec device may be a video codec device including a deblocking filter.

[0033] A filtering method provided by an embodiment of the present invention will firstly be described in detail below.

[0034] see figure 1 , figure 1 A schematic...

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 embodiment of the invention discloses a filter method and device, which are applied to video coding and decoding equipment. The method comprises the following steps: determining whether de-blocking filter needs to be conducted on each of block boundaries of each image obtained after target video decoding and reconstruction; and if the de-blocking filter is needed, de-blocking filter is conducted on each of pixels at two sides of each block boundary through a filter algorithm which is preset based on average instructions and limits an integer operation within the range of eight integers. Through the embodiment of the invention, the filter operation complexity is reduced.

Description

technical field [0001] The present invention relates to the technical field of video encoding and decoding, in particular to a filtering method and device. Background technique [0002] In the field of modern video coding and decoding, block-based transform coding is widely used in image compression coding. As the bit rate decreases, the quantization becomes rough, and there will be discontinuity at the boundary of the block, forming obvious defects in the reconstructed image. called block effect. [0003] In modern video codec standards, deblocking modules are usually added to reduce blocking effects. For example, H.264, H.265, AVS, and VPx series all have built-in deblocking filters. Wherein, the function of the deblocking filter is filtering. Among them, H.264 is a highly compressed digital video codec proposed by the Joint Video Team (JVT, Joint Video Team) composed of ITU-T Video Coding Experts Group (VCEG) and ISO / IEC Moving Picture Experts Group (MPEG). Standard; H...

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): H04N19/86
CPCH04N19/86
Inventor 朱洪波
Owner BEIJING QIYI CENTURY SCI & TECH CO LTD