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Image matching method, computer device and readable storage medium

A matching method and image technology, which is applied in the field of image processing, can solve problems such as inaccurate color difference matching and inability to obtain rotation angles, and achieve the effect of solving inaccurate matching

Pending Publication Date: 2021-09-28
SKYVERSE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above, it is necessary to propose an image matching method, a computer device and a readable storage medium, which can match features based on contour information, and solve the problems of inaccurate matching caused by color difference and inability to obtain rotation angles.

Method used

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  • Image matching method, computer device and readable storage medium
  • Image matching method, computer device and readable storage medium
  • Image matching method, computer device and readable storage medium

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Embodiment Construction

[0028]In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0029] Many specific details are set forth in the following description to facilitate a full understanding of the present invention, and the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by...

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Abstract

The invention provides an image matching method which comprises the steps of obtaining a standard template drawing of a sample and a test drawing of the sample, wherein the standard template drawing comprises a template unit drawing, and the test drawing comprises a test unit drawing; obtaining a standard profile diagram of the standard template diagram, wherein the standard profile diagram marks a boundary profile of the template unit diagram; obtaining a test contour diagram of the test diagram, wherein the standard contour diagram marks a boundary contour of the test unit diagram; and obtaining deviation information between the standard template drawing and the test drawing based on the standard profile drawing and the test profile drawing. Image matching can be realized based on the contour information of the image. The invention further provides a computer device and a readable storage medium for implementing the image matching method.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an image matching method, a computer device and a readable storage medium. Background technique [0002] In wafer chip inspection, it is necessary to precisely position the chip, and template matching is often used for positioning now. However, due to chromatic aberration and other reasons, the problem of inaccurate matching is often encountered. In addition, there is a problem that the rotation angle cannot be obtained. Many problems lead to detection speed can not meet the requirements. Contents of the invention [0003] In view of the above, it is necessary to propose an image matching method, a computer device and a readable storage medium, which can match features based on contour information, and solve the problems of inaccurate matching caused by color difference and inability to obtain rotation angles. [0004] The first aspect of the present invention provi...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/33G06K9/32G06K9/46G06K9/62
CPCG06T7/001G06T7/337G06T2207/30148G06F18/22
Inventor 陈鲁李艳波黄有为佟异张嵩
Owner SKYVERSE TECH CO LTD
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