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Method and system for removing motion blur of single image

A motion blur and single image technology, applied in the field of image restoration, can solve problems such as inaccurate prediction of blur kernel length, lack of robustness, inability to clear motion blur images, achieve good image restoration effect, and simple method Effect

Inactive Publication Date: 2021-02-19
HEFEI INST FOR PUBLIC SAFETY RES TSINGHUA UNIV
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Problems solved by technology

Although this method uses the Radon transform to solve the direction of the blur kernel, its calculation of the length of the blur kernel only uses the center dark fringe spacing on the frequency spectrum, which makes the prediction of the length of the blur kernel inaccurate and not robust, and cannot be used for each Effective sharpening of scenes and types of motion-blurred images

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  • Method and system for removing motion blur of single image
  • Method and system for removing motion blur of single image

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Embodiment Construction

[0060] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the present invention Examples, not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0061] This embodiment provides a method for removing motion blur from a single image, such as figure 1 shown, including the following steps:

[0062] Step 1: Input any motion blur image: f(x, y);

[0063] Step 2: If the input image is a grayscale image, then f gray (x, y)=f(x, y); if the input image is a color image (BGR three-channel image, B is the blue channel, G is the gr...

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Abstract

The invention provides a method for removing motion blur of a single image, which comprises the following steps: S01, calculating the direction of a blur kernel, and calculating the direction of the blur kernel by using a threshold method on the basis of using Radon transform according to the characteristics of the image in a frequency domain, so that the method can accurately obtain the directionof the blur kernel; and S02, calculating the length of the blurred kernel, calculating the length of the blurred kernel according to the direction of the blurred kernel and the information of the input image, calculating the blurred kernel according to the direction of the blurred kernel and the length of the blurred kernel, and restoring the picture according to the blurred kernel and the original picture information. Through the threshold method, the direction with interference is eliminated, so that the wrong direction is prevented from being found, and the accuracy of the obtained direction is ensured.

Description

technical field [0001] The invention relates to the technical field of image restoration, in particular to a method and system for removing motion blur from a single image. Background technique [0002] With the rapid development of security monitoring technology and the extensive deployment of related facilities, videos and images recorded by security monitoring camera equipment have become important reference materials for responsibility tracing, case investigation, and judicial identification. However, when the imaging device is shooting images, it is easily affected by factors such as the subject, the shooting equipment, the shooting object or the shooting environment, and the images with motion blur are taken, making important information such as license plates, faces, and texts completely unrecognizable. In most cases, when re-shooting is not available or a clear image cannot be taken, the resulting image is meaningless. It is of great practical value to perform image...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
CPCG06T2207/10016G06T2207/20048G06T5/73
Inventor 刘成殷松峰付明米文忠刘澍
Owner HEFEI INST FOR PUBLIC SAFETY RES TSINGHUA UNIV
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