Method and system for three-dimensionally reconstructing object surface based on cross-structured light

A technology of cross structure and object surface, which is applied in the field of optical engineering, can solve the problem of easy loss of edge information, etc., and achieve the effect of increased information, convenient operation and improved precision

Active Publication Date: 2015-06-03
东开数科(山东)产业园有限公司
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Problems solved by technology

However, the one-character structured light has defects such as easy loss of edge information when it is parallel to the edge of the scanned

Method used

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  • Method and system for three-dimensionally reconstructing object surface based on cross-structured light
  • Method and system for three-dimensionally reconstructing object surface based on cross-structured light
  • Method and system for three-dimensionally reconstructing object surface based on cross-structured light

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Embodiment Construction

[0036] The present invention will be further described below, but the present invention is not limited to the following examples.

[0037] Such as figure 1 , 2 As shown, the three-dimensional reconstruction system provided by the present invention includes a frame, a mobile platform 2 installed on the frame through horizontal guide rails, a screw rod and a motor for driving the mobile platform, a cross laser projector 3 and a camera 4 fixed above the mobile platform , the motor is connected with the computer through the motion control card, and the camera is connected with the computer 5 through the image acquisition card. The image captured by the camera is transmitted to the computer through the image acquisition card, and the computer controls the motor rotation through the motion control card, and the relative movement distance of each frame of image is calculated by the motor speed and the time interval of the image captured by the camera. The software consists of three...

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Abstract

The invention relates to a method and a system for three-dimensionally reconstructing object surface based on cross-structured light. The three-dimensional reconstruction method and the three-dimensional reconstruction system are characterized in that geometric parameter information of a matter is obtained or object surface is reconstructed in a manner of scanning the matter through the cross-structured light, so that marginal information of horizontal-linear-structured light is prevented from losing, and timeliness is good. The method for three-dimensionally reconstructing the object surface based on the cross-structured light comprises the following steps: step 1: calibrating the system parameters; step 2: extracting laser strip center; step 3: realizing three-dimensional reconstruction; step 4: obtaining the matter information. The system for three-dimensionally reconstructing the object surface based on the cross-structured light comprises a machine frame, a mobile platform, a screw rod, a motor, a cross laser projector and a camera. The motor is connected with a computer, and the camera is connected with the computer through an image collection card.

Description

technical field [0001] The invention relates to the technical field of optical engineering, in particular to a method and system for three-dimensional reconstruction of object surfaces based on cross structured light. Background technique [0002] Line-structured light three-dimensional detection technology is mainly used to measure geometric parameters of objects or restore object depth information. It has the characteristics of non-contact, large range, fast speed, high precision, stable algorithm, convenient use, and simple structure. With the continuous update and development of science and technology, structured light detection technology has been gradually applied in industrial automatic detection, aerospace, ergonomics, biomedical and food detection. Among the current online structured light detection systems, one-word structured light is the most widely used. For example, Canadian scholar Samuel J. Lochner applied it to foot scanning to create a medical model, and Sp...

Claims

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Application Information

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IPC IPC(8): G01B11/24G06T7/00G06T17/00
Inventor 吴珊珊贺磊盈武传宇
Owner 东开数科(山东)产业园有限公司
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