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Gray level image matching method and system

A grayscale image and matching method technology, applied in the field of image processing, can solve the problems of inaccurate matching results and large amount of computation

Inactive Publication Date: 2009-07-08
HANS LASER TECH IND GRP CO LTD +2
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Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a grayscale image matching method, which aims to solve the problems of large amount of computation and inaccurate matching results in the prior art grayscale image matching process

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  • Gray level image matching method and system
  • Gray level image matching method and system

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] In the embodiment of the present invention, the standard sampled image and the sampled image to be tested are obtained by sampling the acquired standard image and the image to be tested. According to the standard sampled image, a rough matching area is obtained on the sampled image to be tested. According to the rough matching area and The standard image is used to obtain the target area on the image to be tested. The matching process has a small amount of calculation and a short time, and the matching result is more accurate.

[0025] figure 1 The processing flow of grayscale image matchi...

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Abstract

The invention suits the image processing field and provides a gray level image matching method and a system. The method comprises the following steps: acquiring a standard image and an image to be detected; respectively sampling the standard image and the image to be detected to obtain a standard sampling image and a sampling image to be detected; acquiring a rough matching region on the sampling image to be detected according to the standard sampling image; and acquiring a target region on the image to be detected according to the rough matching region and the standard image. In the embodiment of the invention, the acquired standard image and the image to be detected are sampled to obtain the standard sampling image and the sampling image to be detected, the rough matching region is obtained on the sampling image to be detected according to the standard sampling image, and the target region can be obtained on the image to be detected according to the rough matching region and the standard image. The method has the advantages of less computation amount of the matching process, short time and accurate matching result.

Description

technical field [0001] The invention belongs to the field of image processing, in particular to a grayscale image matching method and system. Background technique [0002] Image matching refers to identifying points with the same name between two or more images through a certain matching algorithm. The window center point corresponding to the maximum is used as the point with the same name. Its essence is the optimal search problem using matching criteria under the condition of primitive similarity. [0003] Grayscale image matching technology is currently widely used in the quality inspection of products in the production process. However, the traditional matching method is either time-consuming and difficult to meet the high-speed real-time detection requirements of the production line, or has high requirements for image quality, resulting in high hardware costs for the detection system. [0004] Image matching can be mainly divided into grayscale feature matching and g...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/64
Inventor 高云峰蒋会轩熊亚俊黄青龙苗伟
Owner HANS LASER TECH IND GRP CO LTD
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