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Loop filtering implementation method and device and computer storage medium

A technology of loop filtering and implementation method, applied in the field of image processing, can solve the problem of limited improvement of subjective and objective quality of reconstructed images, and achieve the effects of improving subjective and objective quality, reducing computational complexity, and saving coding bit rate

Active Publication Date: 2021-12-03
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current CNN filter does not make full use of relevant information, which makes the improvement of the subjective and objective quality of the reconstructed image limited.

Method used

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  • Loop filtering implementation method and device and computer storage medium
  • Loop filtering implementation method and device and computer storage medium
  • Loop filtering implementation method and device and computer storage medium

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Embodiment Construction

[0033] In order to understand the characteristics and technical contents of the embodiments of the present application in more detail, the implementation of the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present application.

[0034] In the video codec system, the video to be encoded includes the original image frame, and the original image frame includes the original image, and various processing is performed on the original image, such as prediction, transformation, quantization, reconstruction and filtering, etc., during these processing , the processed video image may have shifted pixel values ​​relative to the original image, resulting in visual disturbances or artifacts. In addition, under the block-shaped CU-based hybrid coding framework adopted by most video codec systems, since ad...

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Abstract

The embodiment of the invention discloses a loop filtering implementation method and device and a computer storage medium. The method comprises the steps of obtaining a to-be-filtered image; wherein the to-be-filtered image is generated by an original image in a to-be-coded video in a video coding process, the to-be-coded video comprises an original image frame, and the original image frame comprises the original image; respectively obtaining at least two image components of the to-be-filtered image based on the to-be-filtered image; determining fusion information of the to-be-filtered image; wherein the fusion information at least comprises fusion of the at least two image components; and performing loop filtering on the to-be-filtered image based on the fusion information to obtain at least one image component of the to-be-filtered image after filtering.

Description

[0001] This application is a divisional application of an application with an application date of March 7, 2019, an application number of 201980090702.4, and an invention titled "loop filtering implementation method, device, and computer storage medium". technical field [0002] The embodiments of the present application relate to the technical field of image processing, and in particular, to a method, device, and computer storage medium for implementing loop filtering. Background technique [0003] In the video codec system, most video coding uses a hybrid coding framework based on block coding units (CodingUnit, CU), because adjacent CUs use different coding parameters, such as: different transformation processes, different quantization Parameters (Quantization Parameter, QP), different prediction methods, different reference image frames, etc., and the size of the error introduced by each CU and its distribution characteristics are independent of each other, and the discon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/82
CPCH04N19/82H04N19/124H04N19/186H04N19/172H04N19/423H04N19/117H04N19/132H04N19/176
Inventor 万帅王铭泽马彦卓霍俊彦杨付正
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD