Article geometrical size measuring device and method based on multi-source image fusion

A technology of geometric dimension and measuring device, applied in the direction of measuring device, image data processing, image data processing, etc., can solve the problem of limited measurement accuracy, and achieve the effect of low cost, high accuracy and improved accuracy

Inactive Publication Date: 2008-03-19
SHAANXI UNIV OF SCI & TECH
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Problems solved by technology

However, due to the accuracy limitation of the CCD sensor, the measurement accuracy achieved by this method is very limited

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  • Article geometrical size measuring device and method based on multi-source image fusion
  • Article geometrical size measuring device and method based on multi-source image fusion
  • Article geometrical size measuring device and method based on multi-source image fusion

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0016] Referring to Fig. 1, the present invention includes a data acquisition device 1 that collects and enhances the image data of a measured object to improve the utilization rate of the image data; a data acquisition device 1 input data that performs rough edge positioning and sub-pixel edge detection , and use the data fitting method to fit the sub-pixel edge to obtain the data detection processing device 2 of the edge spacing; a data fusion device 3 that fuses the measurement object data extracted by the data detection processing device 2; the data acquisition device 1 includes several A CCD sensor 4 distributed around the object to be measured determines the number of sensors and the distance distribution between the sensors as required. The CCD sensor 4 is connected to the data detection processing device 2, and the data fusion device 3 is used for the ...

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Abstract

The invention relates to a measuring device and a method based on an object geometry size interfused by a multiple source image, and the measuring device comprises a data acquisition device that performs the acquisition and the attached processing to the image data of the measured object, a data detecting and processing device that performs a fringe coarse positioning and the secondary image element fringe to the image data and adopts a data fitting method to perform a fitting to the secondary image element fringe, to obtain a fringe interval; a data fusion device that performs the interfusion to the measuring object data withdrawal by the data detecting and processing device. The invention expands a single CCD sensor measurement to a multiple CCD sensor measurement, the multiple sensor redundant information is fully utilized and the weighting fusion treatment is performed to the multiple sensor redundant information, thereby obtaining the estimation result of the multiple sensor fusion; and the precision of the measuring result is improved.

Description

technical field [0001] The invention relates to a measuring device and method for the geometric dimension of an object, in particular to a measuring device and method for the geometric dimension of an object based on multi-source image fusion. Background technique [0002] The traditional CCD image measurement method has the characteristics of non-contact, full field of view, and low cost. Therefore, image measurement technology has become a relatively new branch of measurement technology and has been widely used in online detection of object geometric dimensions and high-precision, high-speed field of measurement technology. The single-sensor measurement system consists of an optical system, a CCD camera, an image acquisition card, and a computer. After the optical system performs optical imaging on the measured object, the conversion of optical signals to electrical signals is realized on the photosensitive surface of the CCD camera, and the conversion of analog signals t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01B11/02G06T1/00
Inventor 党宏社胡尊凤
Owner SHAANXI UNIV OF SCI & TECH
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