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A structured image matching method and system

A matching method and structured technology, applied in the field of image recognition, can solve the problems of mismatching workpiece edges to other objects, difficult to extract workpiece edges, etc., and achieve the effect of improving image matching accuracy.

Active Publication Date: 2022-02-18
SHENZHEN A&E INTELLIGENT TECH INST CO LTD
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Problems solved by technology

[0003] However, the inventors of the present invention have found in long-term research and development work that in some application scenarios, especially industrial vision scenarios, when a workpiece appears in a certain mechanism, the edge of the tool has a high degree of similarity with the edge of the mechanism or other types of workpieces, so , in the collected workpiece image, it is not easy to extract the edge of the workpiece, and it is more likely that the edge of the workpiece will be mistakenly matched as other objects

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  • A structured image matching method and system
  • A structured image matching method and system
  • A structured image matching method and system

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[0043] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0044] The present invention first proposes a structured image matching method, and combines figure 1 Application scenarios are described, such as figure 1 and figure 2 As shown, the structured image matching method of this embodiment is used to match the image to be matched 101 with the template image 102, specifically including the following steps:

[0045] S201: Extract multiple template feature points of the template image 102.

[0046] Extract multiple template feature points A of the template image 102 1 、A 2 、A 3 、A 4 and B 1 .

[0047] S202: Obtain a first topological relationship between at least some template feature points and other template feature points.

[0048] Such as Figure 3A As shown, this embodiment obtains the template feature point B 1 with other template feature points A 1 、A 2 、A 3 、A 4 The first topological r...

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Abstract

The invention discloses a structured image matching method, which comprises extracting a plurality of template feature points of a template image (S201); obtaining a first topological relationship between at least some template feature points and other template feature points (S202); Extract a plurality of feature points to be matched (S203) of the image to be matched; obtain at least part of the second topological relationship between the feature points to be matched and other feature points to be matched (S204); treat based on the second topological relationship and the first topological relationship The matching image and the template image are matched (S205). In this manner, image matching accuracy can be improved.

Description

technical field [0001] The present application relates to the technical field of image recognition, in particular to a structured image matching method and system. Background technique [0002] In the technical field of workpiece detection and classification, it is often necessary to identify a certain workpiece from multiple workpieces. The existing workpiece recognition usually collects the workpiece image first, and then performs edge matching or gray-scale matching between the workpiece image and the template image. When the degree of matching exceeds a certain threshold, it is determined that the workpiece and the template have the same structure. [0003] However, the inventors of the present invention have found in long-term research and development work that in some application scenarios, especially industrial vision scenarios, when a workpiece appears in a certain mechanism, the edge of the tool has a high degree of similarity with the edge of the mechanism or other...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06V10/46G06V10/44G06V10/75G06K9/62
CPCG06V10/44G06V10/462G06F18/22
Inventor 阳光
Owner SHENZHEN A&E INTELLIGENT TECH INST CO LTD
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