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Three-dimensional object model reconstruction system and method based on laser images

A technology for three-dimensional models and objects, which is applied in the system field of reconstructing three-dimensional models of objects, can solve the problems of imperfect supporting software, difficult data processing, and high cost of scanning technology, and achieves fast processing speed, strong developability, and high data processing accuracy. Effect

Inactive Publication Date: 2013-08-07
WUHAN UNIV
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AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the existing 3D laser image scanning technology, such as high cost, difficult data processing, and imperfect supporting software, the present invention provides a brand new 3D object model reconstruction technology

Method used

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Embodiment Construction

[0018] The technical scheme of the present invention will be described in detail below according to the examples.

[0019] The object three-dimensional model reconstruction system based on laser images provided by the present invention includes a computer, a single-chip microcomputer, a stepping motor, a rotating platform, a laser, a camera, a checkerboard calibration board and a tripod bracket. The stepping motor; the stepping motor, camera, and laser are respectively installed on a tripod, and the rotating head is installed on the screw of the stepping motor; the camera and the rotating head are at the same height, and the rotating head is included in the field of view of the camera. The embodiment adopts 51 single-chip microcomputer development boards, stepper motors, a 12cm turntable as a rotating platform, a 5mw 650nm flat-line laser, a low-cost camera, a chessboard calibration board, and a miniature tripod stand. Shooting with this system mainly includes three processes:...

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Abstract

Disclosed is a three-dimensional object model reconstruction system and method based on laser images. The system comprises a computer, a single chip microcomputer, a stepping motor, a rotary cradle head, a laser device, a camera, a chessboard calibration plate and a three-legged support. The reconstruction process includes: according to a classical Zhang Zhengyou chessboard calibration method, acquiring calibrated images and generating camera parameters through a hardware system; and controlling the single chip microcomputer by the aid of software so as to control the stepping motor in real time, enabling the surface of a target object to be scanned by laser rays by 360 degrees, performing real-time shooting by the camera to obtain a target image, importing the target image into the computer to be used for selective acquisition of point cloud, obtaining a spatial three-dimensional coordinate of the point cloud by the aid of a laser triangulation measurement method, and reconstructing a three-dimensional model of the target object.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional real scene reproduction, in particular to a system and method for reconstructing a three-dimensional model of an object through image acquisition and laser scanning. Background technique [0002] Three-dimensional laser scanning technology, also known as real scene replication technology, is another new breakthrough in surveying and mapping technology after the GPS spatial positioning system. It uses the method of high-speed laser scanning measurement to quickly obtain the three-dimensional coordinate data of the surface of the measured object with a large area and high resolution. It can quickly and massively collect spatial point information, providing a new technical means for quickly establishing a 3D image model of an object. However, there are many deficiencies in the current 3D laser image scanning technology, which can be summarized as follows: the equipment is expensive, the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T17/00
Inventor 王震刘进
Owner WUHAN UNIV
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