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Part size measurement method based on charge coupled device (CCD)

A measurement method and part technology, applied in measurement devices, computer parts, instruments, etc., can solve the problems of difficult promotion, complex mechanical structure, high price, etc., and achieve the effect of simple algorithm, low cost, and good application prospect.

Active Publication Date: 2015-06-17
邳州市景鹏创业投资有限公司
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Problems solved by technology

[0008] However, there is a common problem in the existing optical imaging measurement technology, which is the need for prior knowledge, that is, the type of part to be measured or known in advance, and the mechanical structure is complicated, the price is very expensive, and it is difficult to promote

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  • Part size measurement method based on charge coupled device (CCD)

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Embodiment Construction

[0039] A kind of CCD-based part size measurement method proposed by the present invention will be described in detail below in conjunction with the flow chart shown in the accompanying drawings:

[0040] A kind of part dimension measurement method based on CCD, its specific implementation steps are as follows:

[0041] Step 1, Image Acquisition

[0042] Use the CCD camera to take the digital grayscale image of the surface of the part, and output it to the Gigabit Ethernet Network Card (Gigabit Ethernet Network Card) with the Gige standard video signal; Or stored digital image signals for processing and analysis. The image acquisition device adopted in the image acquisition step of the present invention includes a CCD camera, a light source, and a CCD camera controller; the light source used in the present invention is a back light source. The light source is composed of an LED rectangular box and a light-shielding metal cover. There are several LED light-emitting tubes in th...

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Abstract

The invention provides a part size measurement method based on a charge coupled device (CCD). According to the part size measurement method, feature point recognition technology is adopted, pixels are classified through feature points of a part, the size of the whole part is measured, prior knowledge of the part is not required, and measurement for the common part is achieved. According to the method, high-speed measurement is conducted, and meanwhile a precision requirement is met. The part size measurement method based on the CCD is simple in algorithm, low in cost and good in application prospect due to the facts that only the CCD and a computer are required for hardware implementation and a complex mechanical structure is not required.

Description

technical field [0001] The invention belongs to the technical field of measuring instrument manufacture and measurement, and specifically refers to a CCD-based part size measuring method. Background technique [0002] In recent years, visual measurement technology has developed rapidly at home and abroad, and has been widely used in dimension measurement of geometric quantities, aerial remote sensing measurement, micro-dimension measurement of precision and complex parts, appearance monitoring, light wave interferogram, stress-strain field state distribution map, etc. Technical fields related to images. In terms of theoretical research, he mainly studies the edge detection algorithm of images. For a long time, people have been studying various methods that can better achieve edge detection. In 1965, L.G Roberts first began to study edge detection systematically, and proposed the Roberts edge detection operator. Then, around 1970, J.Prewitt and L Sobel respectively proposed...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/24G01B11/02G01B11/26G01B11/00G06K9/62
Inventor 陈苏婷孟浩吕伟
Owner 邳州市景鹏创业投资有限公司
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