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Method and device for determining three-dimensional object surface coordinate and color

A technology of three-dimensional objects and coordinates, applied in the direction of measuring devices, using optical devices, using electric/magnetic devices to transmit sensing components, etc., can solve the problems of low data collection efficiency and blind zone depth errors, etc., to overcome interference and eliminate influence , the effect of high object adaptability

Inactive Publication Date: 2004-02-11
NORTHWEST UNIV
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Problems solved by technology

However, it uses point light sources with multi-wavelength components, so the data collection efficiency is not high; in addition, the three-dimensional light scanning method has only one optical device to detect the depth information of the object surface, which may lead to a large depth error in the blind zone

Method used

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  • Method and device for determining three-dimensional object surface coordinate and color
  • Method and device for determining three-dimensional object surface coordinate and color
  • Method and device for determining three-dimensional object surface coordinate and color

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Embodiment Construction

[0024] Accompanying drawing is the specific embodiment of the present invention.

[0025] The specific content of the present invention will be further described below in conjunction with the accompanying drawings.

[0026] Such as figure 1 Shown, scanning head (13) is made of left and right two color CCD image sensors (6L, 6R), white highlight semiconductor light-emitting diode array illuminating light source (7) and linear semiconductor laser light source (12); Scanning head (13) Installed on the horizontal beam (5), one end of the horizontal beam (5) is provided with a second stepping motor (3, driven in the X direction); the horizontal beam is composed of a ball screw (11), a first stepping motor (2, driven in the Z direction) drive) to do vertical motion; above the translation platform (1) is a rotating loading platform (9), which is driven by a set of worm and gear mechanisms and a fourth stepping motor (8), and the translation platform is driven by The third stepper m...

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Abstract

The present invention discloses method and device for determining 3D object surface coordinate and color. The surface of the object to be measured is exposed alternately with laser pulse and light pulse to form laser image and color image modulated by object surface depth. The 3D coordinates of the object laser irradiates are calculated based on optical principle and color information is collected in the corresponding points of the color image of the object. The device for the measurement has scanning head comprising double-visual angle scanning video camera, lighting pulse light source andlaser pulse light source. The double-visual angle CCD camera can realize in-situ complementation to reduce effectively the blind depth error caused by too great surface curvature change.

Description

technical field [0001] The invention relates to a method and a device for determining the coordinates and colors of the surface of a three-dimensional object, in particular to a method for determining the coordinates of a point on the surface of a three-dimensional object and the real color of the position of the corresponding coordinate point, and a device for realizing the method. Background technique [0002] Computer 3D image processing software expresses the real world in an intuitive way, helping people reproduce a realistic 3D world on the screen. Computer three-dimensional graphics and image processing technology mainly involves the spatial coordinate parameters of the object shape, the color of the surface color of the object, and the lighting, mapping, shadow and other factors that express the material of the object and the relationship between the object and the environment. The three-dimensional coordinates of the object in the above parameters completely depend ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/26G01D5/12G06T15/00G06T17/00H04N1/04
Inventor 赵宏安周明全耿国华
Owner NORTHWEST UNIV
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