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Shielded workpiece identification method based on template matching

A technology of template matching and recognition method, which is applied in character and pattern recognition, computer parts, image data processing, etc., and can solve problems such as workpiece recognition

Active Publication Date: 2020-10-02
SHENYANG POLYTECHNIC UNIV
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Problems solved by technology

[0006] The present invention aims to propose a masking workpiece recognition method based on template matching to solve the recognition problem of workpieces in the prior art

Method used

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  • Shielded workpiece identification method based on template matching
  • Shielded workpiece identification method based on template matching
  • Shielded workpiece identification method based on template matching

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Embodiment Construction

[0087] Below in conjunction with accompanying drawing, the present invention will be further described:

[0088] Aiming at the recognition problem of the occluded workpiece in actual production, the invention proposes a multi-template rotation matching method based on pixel gray scale combined with texture information. First, the algorithm uses the corresponding relationship between the depth camera and the color camera in kinect v2 to align the captured color image with the depth image; then preprocesses the color image by filtering, enhancing, and extracting texture to obtain a clear texture image; The workpieces placed horizontally and at different inclination angles are made into multiple standard templates; finally, the templates are matched with the texture images in turn, and if the matching is successful, it is determined that there is a target workpiece in this area. Experimental results prove that this method can effectively identify workpieces in both non-occluded a...

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Abstract

The invention relates to the field of workpiece identification, in particular to a shielded workpiece identification method based on template matching. The method comprises: preprocessing a color image; then manufacturing a plurality of standard templates; and finally, judging whether a workpiece exists or not through standard template matching. The system comprises an image alignment module, a preprocessing module, a standard template module and a template matching module. According to the recognition method, the workpiece in the non-shielding state and the workpiece in the shielding state can be effectively recognized, the recognition rate can reach 94.4%, and the workpiece in the non-shielding state and the workpiece in the shielding state can be effectively recognized.

Description

technical field [0001] The invention relates to the field of workpiece identification, in particular to a masking workpiece identification method based on template matching. Background technique [0002] Workpiece sorting is an important part of industrial automation production, and its efficiency and accuracy depend to a large extent on the recognition rate of workpieces. At present, most of the sorting systems used in various factories are only suitable for the identification of unobstructed workpieces. If the workpiece is obstructed, the system will fail to adapt to this change and cause sorting failure. Therefore, the selection of recognition algorithms is particularly important. Template matching technology, as one of the commonly used recognition algorithms, is to translate the template to every possible position in the source image, and evaluate whether the template matches the source image at that position. Existing template matching techniques can be roughly divide...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06K9/46G06T7/80
CPCG06T7/80G06V10/462G06V10/751
Inventor 刘振宇姜雨濛
Owner SHENYANG POLYTECHNIC UNIV
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