Method and device for collecting image in large size for industrial products based on line array of CCD

An industrial product and large-format technology, applied in the field of computer vision, can solve problems such as artificial visual fatigue, mental stress, and missed defects, and achieve the effects of high imaging accuracy, easy follow-up processing, real-time monitoring and storage

Inactive Publication Date: 2006-12-06
HUAIYIN INSTITUTE OF TECHNOLOGY
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Problems solved by technology

[0003] In order to solve the manual detection of industrial products in industrial production, especially for some large-format industrial products, which may be caused by artificial visual fatigue and mental stress when the detection of some large-format industrial products relies on manual grading, grading, and monitoring, resulting in grading, Inaccurate grading, missing defects

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  • Method and device for collecting image in large size for industrial products based on line array of CCD
  • Method and device for collecting image in large size for industrial products based on line array of CCD

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Embodiment approach

[0012] Combine below figure 1 , figure 2 Give a better embodiment of the present invention, collect some kind of industrial product, its format is 2500mm, in order to illustrate the structural feature, technical performance and function characteristic of the present invention, but not be used for limiting the scope of the present invention.

[0013] Such as figure 1 , in the present embodiment, the selection of the linear array CCD in the camera 1 can represent the unit of a resolution by 2 pixels, as resolution is 1mm (being the minimum defect size on the collected product), the format of the product is 2500mm, you can choose a linear array CCD chip with more than 5000 pixels. This embodiment selects the TCD2557D color linear array CCD chip from Toshiba (TOSHIBA). , the output is R, G, B three-way. The linear array CCD chip is integrated on an integrated board including A / D conversion, memory RAM, field programmable gate array (FPGA Field Programmable Gate Array), I / O por...

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Abstract

The apparatus comprises the camera composed of the black or color linear CCD chip integration board (including A / D converter, RAM, PLD, I / O port and USB port), optical system (lens and light source), data collecting card, computer, light barrier board having tunable margin and glare shade. The camera is located at one side of manufactured products, and the manufactured products are exposed through a direction-tunable light source, and then the reflected light is coupled into the CCD sensing surface through the lens. The components in the integration board complete the A / D conversion, image processing and transmission. Through the image collecting card the images are transmitted to the computer to implement the saving of consecutive image. It can be used for field supervision, the PLD can make pre-process for the defect in collected image and send alarm signals. The consecutive image saved in the computer can provide a reference for the product classification.

Description

technical field [0001] The invention relates to a method and a device for collecting large-format industrial product images by using a linear array CCD (Charge Coupled Device), belonging to the technical field of computer vision. Background technique [0002] In many industrial sites, it is necessary to automatically detect the surface of industrial products, and analyze the images of industrial products after collecting them, so as to guide the production of products, such as grading, grading, and alarming. Some industrial products have a large size and format, such as rolled steel strips, printed and dyed textiles, printed printed matter, and wood rotary-cut veneer strips, etc., and some of their format sizes can reach more than 3000mm. At present, the identification of industrial product defects in many fields is still carried out manually, which has caused a bottleneck in the automatic production of products. At the same time, the accuracy of manual identification is low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04N5/238
Inventor 程伟梁萍
Owner HUAIYIN INSTITUTE OF TECHNOLOGY
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