Image filtering method, device and equipment and storage medium

An image filtering and filtering processing technology, which is applied in the field of image processing and can solve the problem of low coding gain of framed images.

Active Publication Date: 2020-09-11
MIGU CO LTD +2
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide an image filtering method, device, de

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  • Image filtering method, device and equipment and storage medium
  • Image filtering method, device and equipment and storage medium
  • Image filtering method, device and equipment and storage medium

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Embodiment Construction

[0031] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. In the following description, specific details, such as specific configurations and components, are provided only to assist in a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0032] It should be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of t...

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Abstract

The invention provides an image filtering method, device and equipment, and a readable storage medium, and solves the problem of low coding gain of an existing frame image. The method comprises the steps that after inverse transformation and dequantization processing are carried out on a current frame, filtering processing is carried out on the current frame through a first loop filtering technology and a target loop filtering technology, and the current frame is a current coded frame or a current decoded frame, wherein the target loop filtering technology comprises at least one of the following technologies: a deblocking effect filtering technology; a sample point adaptive compensation technology; an adaptive loop filtering technology; the first loop filtering technology is a technology for filtering the current frame based on first filtering information, and the first loop filtering information is obtained by classifying all pixels of the current frame, so that the coding gain of a frame image can be improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of image processing, and in particular, relate to an image filtering method, device, equipment, and storage medium. Background technique [0002] In video coding and decoding, there are often areas in the image where the pixel values ​​change drastically. After encoding and decoding reconstruction of this part of the area, there will usually be a ripple-like distortion phenomenon. This distortion phenomenon is called the ringing effect. [0003] Sample adaptive offset (SAO) is one of the important technologies of video codec, and the SAO technology can well reduce the ringing effect. However, the ringing effect itself is based on the largest coding unit (LCU), and there are many parameters that need to be written into the code stream. The high code rate consumption of SAO itself limits part of the performance. On this basis, how to improve Coding gain has become an urgent problem to be...

Claims

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Application Information

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IPC IPC(8): H04N19/86H04N19/117H04N19/124H04N19/186H04N19/82
CPCH04N19/86H04N19/82H04N19/124H04N19/117H04N19/186
Inventor 李琳邢刚冯亚楠简云瑞张嘉琪王苫社马思伟
Owner MIGU CO LTD
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