Image de-blurring method and image de-blurring device

A technology for deblurring and blurring direction, applied in the field of image processing, which can solve the problems of image defocus blur, recognition, motion blur, etc.

Active Publication Date: 2015-02-04
SUZHOU UNIV
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  • Application Information

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Problems solved by technology

[0004] In view of this, the present application provides an image deblurring method and device, which is used to s

Method used

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  • Image de-blurring method and image de-blurring device

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Embodiment Construction

[0065] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0066] see figure 1 , figure 1 It is a flowchart of an image deblurring method disclosed in the embodiment of this application.

[0067] Such as figure 1 As shown, the method includes:

[0068] Step S100, performing blur region detection on the image to be processed, and determining the image of the blur region;

[0069] Specifically, in actual road monitoring images, flat road surfaces and smooth vehicle surfaces will result in fewer high-frequency components in the frequency s...

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Abstract

The invention discloses an image de-blurring method and an image de-blurring device. The method comprises the following steps: detecting a blur region for a to-be-treated image so as to determine a blur region image; judging the blur type of the blur region image; if the blur type of the blur region image is defocus blur, determining the defocus radius by using differential image self-correlation-based defocus blur parameter estimation algorithm; if the blur type of the blur region image is motion blur, determining the blur direction and blur size by using cepstrum analysis-based motion blur parameter estimation algorithm; and introducing estimated parameters into classical image recover algorithm to obtain a recovered image. According to the method which firstly determines the region of blur in the image, then estimates necessary parameters when different methods are selected to recover according to the blur types and finally recovers the image, license plate recognition can be accurately identified.

Description

technical field [0001] The present application relates to the technical field of image processing, and more specifically, to an image deblurring method and device. Background technique [0002] Generally speaking, the license plate recognition system can be divided into five parts: vehicle image acquisition, image preprocessing, license plate location, character segmentation, and character recognition. However, factors such as problems with the assembly of traffic monitoring equipment, inaccurate focus during shooting, and high-speed movement of the target vehicle may cause defocus or motion blur in some areas of the image. [0003] Due to the above-mentioned out-of-focus blur or motion blur in the acquired image, the existing license plate recognition system cannot accurately identify the license plate information in the blurred position. Contents of the invention [0004] In view of this, the present application provides an image deblurring method and device, which are ...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T5/20
Inventor 徐汀荣兰溪
Owner SUZHOU UNIV
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