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Image restoration method of blurred image

A technology for blurring images and images, applied in the field of image processing, which can solve problems such as poor image restoration effect and serious ringing effect of clear images, and achieve the effects of improving CPU processing efficiency, avoiding blind calculations, and reducing the amount of calculations

Inactive Publication Date: 2017-11-21
PHICOMM (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Even if the existing image restoration method calculates the PSF, the ringing effect of the clear image is serious, and the image restoration effect is not good.

Method used

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  • Image restoration method of blurred image
  • Image restoration method of blurred image
  • Image restoration method of blurred image

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Embodiment Construction

[0058] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.

[0059] In order to make the drawing concise, each drawing only schematically shows the parts related to the present invention, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked. Herein, "a" not only means "only one", but also means "more than one".

[0060] figure 1 ...

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Abstract

The invention provides an image restoration method of a blurred image. The method comprises steps of: S100 acquiring a blurred image, converting the blurred image and the corresponding target blurred core from the time domain to the frequency domain, and dividing the blurred image into a plurality of blurred sub-image blocks; S200 with the preset blurred core algorithm, estimating the target blurred core of each blurred sub-image block at the same time; S300 according to the preset image restoration algorithm combined with the target blurred cores, calculating and obtaining clear sub-image blocks; S400 jointing and merging each clear sub-image block according to the order of each blurred sub-image block to obtain a clear image corresponding to the blurred image. The method can rapidly estimate the blurred core, can obviously reduce the ringing effect caused by the deconvolution operation, and improve the precision of the deconvolution algorithm.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an image restoration method for blurred images. Background technique [0002] At present, human beings have entered the information age. The ability to obtain information is an important manifestation of a country's comprehensive strength. Images are a material reproduction of information that people perceive visually. Images can be recorded and stored in paper media, film, etc., which are sensitive to optical signals. on the medium. In the imaging process of a large field of view camera, there are many reasons for image blur, including image motion, defocusing of the imaging system, and atmospheric turbulence, which will cause image quality degradation, resulting in blurred image details and unclear features. The goal of the large field of view camera is to obtain high-quality continuous seamless wide-coverage images, so the acquired images need to be restored. First ...

Claims

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Application Information

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IPC IPC(8): G06T5/00
CPCG06T2207/20021G06T5/73
Inventor 代伟佳
Owner PHICOMM (SHANGHAI) CO LTD
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