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Noise suppression filter

A technology of noise suppression and filter, applied in the direction of digital video signal modification, electrical components, image communication, etc., can solve the problem of video size becoming a problem

Active Publication Date: 2019-09-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The size of the video can also be an issue when storing the video on a storage device due to potentially limited memory resources

Method used

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Embodiment Construction

[0032] It should be understood at the outset that although the following provides an illustrative implementation of one or more embodiments, the disclosed systems and / or methods may be implemented using any number of techniques, whether currently known or in existence . The invention should in no way be limited to the illustrative implementations, drawings, and techniques illustrated below, including the exemplary designs and implementations illustrated and described herein, but rather be within the scope of the appended claims and their equivalents. Modified within the full range of .

[0033] A video coding scheme subdivides a video signal into image frames, and then subdivides the image frames into various types of blocks. The image blocks are then compressed. This approach can produce visual artifacts when reconstructing and displaying compressed video signals. For example, blockiness can be artificially added by the image compression process, known as blocking, and oft...

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Abstract

A mechanism of video coding is provided. The mechanism includes generating a reconstructed image from an encoded video stream. The reconstructed image is filtered to create a filtered image. The filtering includes applying a noise suppression filter to the reconstructed image. The noise suppression filter may be applied immediately prior to applying a deblocking filter to the reconstructed image,between a deblocking filter and a sample adaptive offset (SAO) filter, between the SAO filter and an adaptive loop filter, or after the adaptive loop filter. The filtered image is then stored in a picture buffer in memory for use in encoding or for output to a display in decoding.

Description

[0001] Related Applications Cross Application [0002] This application claims priority from an earlier application to U.S. Nonprovisional Patent Application No. 15 / 937,256, filed March 27, 2018, entitled "Noise Suppression Filter," which in turn claims April 6, 2017 U.S. Provisional Patent Application No. 62 / 482,619, filed on July 7, 2017, entitled "Noise Suppression Filter" by Liu Shan et al. U.S. Provisional Patent Application No. 62 / 529,972 for In-Loop Filtering for ", the contents of all of which are incorporated herein by reference. [0003] Statement Regarding Research or Development Sponsored by the Federal Government [0004] Not applicable. [0005] Refer to Microfiche Addendum [0006] Not applicable. Background technique [0007] Even depicting relatively short videos can require a large amount of video data. Hence, difficulties may arise when streaming data transmission or data communication is required in communication networks with limited bandwidth capacit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/86
CPCH04N19/86H04N19/176H04N19/46H04N19/117H04N19/186H04N19/96H04N19/82H04N19/174H04N19/70
Inventor 刘杉傅佳莉马祥罗马·车雅克维克多·阿列克谢耶维奇·斯蒂平伊戈尔·帕塞尼克谢尔盖·伊科宁
Owner HUAWEI TECH CO LTD