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Linear array CCD camera alignment adjustment method

An adjustment method and camera technology, applied in image data processing, installation, optics, etc., can solve problems such as complex operation, complex calibration system, and difficulty in ensuring alignment accuracy, and achieve flexible operation, focus adjustment, and wide application range Effect

Inactive Publication Date: 2016-10-12
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0004] The purpose of the present invention is to address the deficiencies of the above-mentioned background technology, to provide a method for adjusting the alignment of a linear array CCD camera, and to propose a calibration plate for alignment adjustment of a linear array CCD camera. The automatic adjustment of the array CCD camera solves the technical problems that the alignment accuracy is difficult to guarantee, the calibration system is complicated, and the operation is complicated in the existing methods

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Embodiment Construction

[0023] Hereinafter, the present invention will be further described in detail by taking near-field adjustment as an example in conjunction with the accompanying drawings.

[0024] Referring to FIG. 1 , it is a schematic diagram of the calibration plate in the present invention. When in use, just print out Figure 1 on A4 paper and paste it on a rigid flat plate to use. As shown in Figure 1, the calibration board is divided into two parts, the upper part and the lower part, and the spacing between the vertical bars in the upper part is twice that of the vertical bars in the lower part. The upper part can be used for alignment adjustment when the camera is far away from the shooting target (that is, far field adjustment), the lower half can be used for alignment adjustment when the camera is closer to the shooting target (that is, near field adjustment), the upper half The part and the lower part are drawn with a group of diagonal lines with an angle of 45 degrees to the vertica...

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Abstract

The invention discloses a linear array CCD camera alignment adjustment method, relating to the visual sense system camera calibration technology field. The linear array CCD camera alignment adjustment method adopts a calibration plate drawn with a vertical line group and an oblique line group to finish calibration adjustment of a linear array CCD camera by adjustment software of the linear array CCD camera. The linear array CCD camera alignment adjustment method not only determines a specific position of a scanning line and determines whether scanning line is horizontal, but also realizes the facts that the focal length adjustment of the linear array camera does not need extra hardware support, the cost is reduced, a mobile standard plate is not needed to realize fast and effective calibration and operation is flexible.

Description

technical field [0001] The invention discloses an alignment adjustment method of a linear array CCD camera, and relates to the technical field of camera calibration of a vision system. Background technique [0002] The detection object of the line array CCD camera usually moves at a constant speed. Its working method is to scan only one line of the object as a line in the image at a time. It has high precision and is very suitable for image acquisition of moving objects. However, since the linear array CCD camera can only scan one line of the measured object at a time, it cannot obtain a complete image of the measured object at one time, so it is difficult to effectively locate and adjust its scanning position, thus affecting the quality of the collected images. [0003] The application number is 201310425241.6, and the patent name of the invention is "a CCD camera calibration and alignment method". The calibration sample is fixed on the alignment platform, and the quantitat...

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Application Information

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IPC IPC(8): G06T7/00G02B7/00
CPCG02B7/003G06T2207/30244G06T2207/10004
Inventor 刘虹丹田裕鹏戴圣然杨颖徐家园胡杨建
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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