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Shielded workpiece identifying method and device based on binary system feature matching

A feature matching and recognition method technology, applied in character and pattern recognition, computer parts, image data processing, etc., can solve problems such as large amount of calculation and storage space, low discrimination of descriptors, and poor universality.

Inactive Publication Date: 2015-01-07
DALIAN UNIV OF TECH
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Problems solved by technology

[0010] To sum up, the existing workpiece recognition methods have the following technical problems: (1) Recognition of certain specific workpieces has poor universality and limited application fields; (2) Realization with complex equipment such as multi-angle exposure cameras Workpiece recognition leads to high cost, complex data acquisition and processing, and large amount of calculation; (3) SIFT algorithm is used to realize occluded workpiece recognition, which requires a large amount of calculation and storage space; (4) The descriptors obtained by the FREAK algorithm have low discrimination , the matching effect is not ideal

Method used

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  • Shielded workpiece identifying method and device based on binary system feature matching
  • Shielded workpiece identifying method and device based on binary system feature matching
  • Shielded workpiece identifying method and device based on binary system feature matching

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] Such as figure 1 As shown, the present invention is an occluded workpiece recognition device based on binary feature matching, which includes an image acquisition unit 1, a workpiece template image feature extraction unit 2, a workpiece image feature extraction unit 3 to be identified, a feature matching unit 4 and a wrong matching unit 5.

[0030] Wherein, the image acquisition unit 1 captures the workpiece template image and the workpiece image to be recognized, and correspondingly transmits to the workpiece template image feature extraction unit 2 and the workpiece image feature extraction unit 3 to be recognized; the workpiece template image feature extraction unit 2 includes an image preprocessing module 21 , feature point detection module 22 and feature point description module 23, the image preprocessing module 21 will extract the workp...

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Abstract

The invention relates to a shielded workpiece identifying method and device based on binary system feature matching. The identifying problem of a shielded workpiece is solved, and meanwhile the computation complexity can be lowered, the storage space can be reduced, and the matching precision can be improved. In addition, good robustness is achieved on ambient light, view angle changing and partial shielding, the shielded workpiece can be identified in different interference environments, and a good identifying result is obtained. Thus, the shielded workpiece identifying method and device can be widely applied to the field of image identifying.

Description

technical field [0001] The invention relates to a workpiece recognition method and device, in particular to a method and device for occluded workpiece recognition based on binary feature matching. Background technique [0002] Robots are widely used in industrial equipment manufacturing and play a huge role in industrial production. Robots can be used not only for monotonous and tedious repetitive tasks such as processing, assembly, handling, and sorting, but also for processes harmful to the human body such as welding, spraying, laser processing, and pressure casting. The use of robots can not only save manpower, reduce labor intensity of workers, improve production efficiency, reduce production costs, but also produce stable product quality. Introduce machine vision technology into robot control, so that the robot can simulate the functions of human visual cognition and judgment. By acquiring on-site images, target recognition and sorting can be realized based on certain ...

Claims

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Application Information

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IPC IPC(8): G06K9/66G06K9/46G06T7/00
CPCG06F18/22
Inventor 陈喆殷福亮李腾
Owner DALIAN UNIV OF TECH
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