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Image coding and decoding method and related product

An image coding and image technology, applied in the field of information processing, can solve problems such as high-frequency information loss, and achieve the effect of reducing bit rate, reducing loss, and improving image quality

Pending Publication Date: 2022-07-01
CAMBRICON TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the existing coding technology directly encodes the image containing the edge, which will lead to the loss of high-frequency information carried by the edge.

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  • Image coding and decoding method and related product
  • Image coding and decoding method and related product
  • Image coding and decoding method and related product

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Embodiment Construction

[0067] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0068] It should be understood that the terms "first", "second" and "third" in the claims, description and drawings of the present disclosure are used to distinguish different objects, rather than to describe a specific order. The terms "comprising" and "comprising" as used in the specification and claims of this disclosure indicate the presence of the described features, integers, steps, operations, elements and / or components, but do not exclude one or more other features, integers , step, operation, element, component and / or the presence or addition of a collection thereof.

[0069] It should also be understood that the terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to limit the present disclosure. As used i...

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Abstract

The embodiment of the invention discloses an image coding and decoding method and a related product, the method comprises the following steps: carrying out edge detection on a to-be-coded image, obtaining a fitting point from the edge, and if the degree of closeness between a fitting curve generated by the fitting point and a connected curve determined by the edge is less than a target threshold value, determining the to-be-coded image; the connected curve and the obtained target pixel point are smoothed according to the obtained compensation value to obtain a first image, the coordinates of the at least two fitting points, the compensation value and the first image are coded and decoded respectively, a fitting curve is generated according to the decoded coordinates of the fitting points, and the fitting curve is obtained. And compensating the fitting curve in the first image and the obtained target pixel point according to the compensation value to obtain a compensated image. According to the method, after the edge is separated, the edge information and the separated image are respectively coded and decoded, so that the loss of high-frequency information carried by the edge can be reduced.

Description

technical field [0001] The present application relates to the technical field of information processing, and in particular, to an image encoding and decoding method and related products. Background technique [0002] The frequency of an image is an index that characterizes the intensity of grayscale changes in the image. Since the edge is a collection of pixels whose grayscale value changes sharply in the image, the edge contains more high-frequency information. At the same time, the edge of the image exists between the target, the background and the area, which is a sensitive and visible area of ​​the human eye and an important feature of the image. [0003] At present, existing encoding technologies directly encode images containing edges, which may result in the loss of high-frequency information carried by the edges. SUMMARY OF THE INVENTION [0004] Embodiments of the present application provide an image encoding and decoding method and related products, which can op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/14H04N19/43H04N19/51H04N19/55
CPCH04N19/14H04N19/55H04N19/43H04N19/51
Inventor 不公告发明人
Owner CAMBRICON TECH CO LTD
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