System and method for active visual detection of vehicle shape based on unconstrained concentric beam family

A technology of active vision and detection methods, applied in measuring devices, optical devices, instruments, etc., can solve the problems of poor convenience and long time consumption of surface laser measurement systems

Inactive Publication Date: 2020-05-01
JILIN UNIV
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Problems solved by technology

[0003] Aiming at the accuracy problem of the non-contact measurement system and the time-consuming and poor convenience of the area-based laser measurement system, the present invention proposes an active visual detection system and method based on the unconstrained concentric beam family for vehicle shape

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  • System and method for active visual detection of vehicle shape based on unconstrained concentric beam family
  • System and method for active visual detection of vehicle shape based on unconstrained concentric beam family
  • System and method for active visual detection of vehicle shape based on unconstrained concentric beam family

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Embodiment Construction

[0098] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0099] refer to Figure 1 to Figure 7 , based on the unconstrained concentric beam family, the active visual inspection system for vehicle shape includes a camera 1, a 3D target 2, a laser line projector 3, a 2D target 4, a 2D target base 5, a connector 6 and a tripod 7.

[0100] The three-dimensional target 2 is a cubic part welded by three rectangular steel plates, the surface of the three-dimensional target 2 is pasted with regular geometric patterns, and the three-dimensional target 2 is placed on the level ground. The two-dimensional target 4 is a rectangular part made of steel plate, and the surface of the two-dimensional target 4 is pasted with LED dot matrix. The two-dimensional target base 5 is a cuboid part processed from a steel plate, and the upper surface of the two-dimensional target base 5 is processed with grooves. The two-dimensional target base 5 i...

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Abstract

The invention discloses an automobile morphology active vision detection system and method based on an unconstrained homocentric beam family, and aims at solving the problem of automobile morphology active vision detection based on the unconstrained homocentric beam family. The automobile morphology active vision detection system based on the unconstrained homocentric beam family is mainly composed of a camera (1), a three-dimensional target (2), a laser line projector (3), a two-dimensional target (4), a two-dimensional target base (5), a connecting piece (6) and a tripod (7). The automobilemorphology active vision detection method based on the unconstrained homocentric beam family comprises the four steps of image acquisition, calibration of a position relation between the two-dimensional target (4) and the laser line projector (3), laser line reconstruction in a coordinate system of the camera (1), and automobile characteristic point reconstruction in the coordinate system of the camera (1). The automobile morphology active vision detection system and method based on the unconstrained homocentric beam family, which is simple in structure and reliable in performance is provided.

Description

technical field [0001] The invention relates to a measuring device and a measuring method in the field of automobile shape detection, more specifically, it is an active visual detection system and method based on an unconstrained concentric beam family for automobile shape. Background technique [0002] At present, the detection technology of automobile shape has important research significance for automobile maintenance, automobile inspection and other fields. Common detection systems are mainly divided into contact and non-contact. Due to the poor convenience and time-consuming of contact measurement systems, non-contact measurement systems are more commonly used. Non-contact measurement systems use optical images or two-dimensional slices to measure objects. However, the main application in the current system is an optical generator that projects a laser plane, and the laser plane can only form a laser intersection line with the object to be measured. If a large-scale t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/25
CPCG01B11/25
Inventor 徐观沈慧戴建国苏建单红梅张立斌刘玉梅潘洪达林慧英陈熔李晓韬陈芳陈俊伊朱尧平胡常青袁静
Owner JILIN UNIV
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