Scale type distortion coefficient measuring instrument for automobile topography measurement system

A technology of topography measurement and distortion coefficient, which is used in measurement devices, instruments, optical devices, etc., to meet the requirements of measurement accuracy, ensure measurement accuracy, and achieve the effect of large output

Inactive Publication Date: 2016-03-02
JILIN UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the current situation that the distortion coefficient of the camera lens of the automobile body shape detection system cannot be easily measured at present, the present invention provides a simple structure, high detection accuracy, small cumulative error, complete function, simple operation, easy installation, strong versatility, and low cost. Scale-type distortion coefficient measuring instrument for automobile shape measurement system with relatively low performance and reliable performance, which can meet the requirements of the automobile inspection industry for the verification of automobile body shape inspection systems

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  • Scale type distortion coefficient measuring instrument for automobile topography measurement system
  • Scale type distortion coefficient measuring instrument for automobile topography measurement system
  • Scale type distortion coefficient measuring instrument for automobile topography measurement system

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0018] refer to Figure 1 to Figure 4 , The scale-type distortion coefficient measuring instrument of the automobile shape measurement system includes a sleeve 1, a scale 2, a steel wire 3, a square steel frame 4 and an adjusting bolt 6.

[0019] The square steel frame 4 is welded by a steel rectangular frame and four cylinders. Two threaded holes are processed in the middle of the upper and lower surfaces of the rectangular frame, and four cylinders are welded on the outer surface of the four threaded holes of the rectangular frame. Bolt 6 is an ordinary bolt with a circular through hole processed radially at the bottom end. Sleeve 1 is made by welding two cylinders and a cylindrical steel piece. Through-hole, two cylinders are welded in the middle of the side of the cylindrical steel part, and a threaded hole is machined axially along the inner hole of the small cyl...

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Abstract

The invention discloses a scale type distortion coefficient measuring instrument for an automobile topography measurement system and aims to solve the problem that a camera lens distortion coefficient of an automobile topography visual detection system cannot be simply and conveniently measured. The scale type distortion coefficient measuring instrument for the automobile topography measurement system mainly comprises sleeves (1), scale rulers (2), steel wires (3), a square steel frame (4) and adjusting bolts (6); the steel wires in a distortion image are changed to be original straight lines by controlling stretching of the steel wires through the adjusting bolts (6), and the distortion coefficient is acquired according to displacement of the adjusting bolts (6). The scale type distortion coefficient measuring instrument for the automobile topography measurement system is simple in structure, high in detection accuracy, simple and convenient to operate, easy to mount, lower in cost and reliable in performance.

Description

technical field [0001] The invention relates to a verification device for a detection device in the field of the automobile industry, more specifically, it relates to a scale-type distortion coefficient measuring instrument for an automobile shape measurement system. Background technique [0002] Due to the nonlinear distortion of the camera lens of the automobile body shape detection system, the pixels in the actual collected image cannot correspond to the pixels of the ideal image one by one. The contour and shape of the object will change, which will reduce the measurement accuracy of the camera and affect the three-dimensional reconstruction of the object. At present, the generated image is processed, and the distortion parameter model of the camera is calibrated, which is complex and requires a large amount of calculation. Therefore, it is of great significance to design a simple scale-type distortion coefficient measuring instrument for automobile shape measurement sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24
CPCG01B11/24
Inventor 徐观张馨元苏建林慧英戴建国单红梅陈熔张立斌刘玉梅潘洪达李晓韬吴广为袁静郑安琪
Owner JILIN UNIV
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