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Synchronous hue shift conversion method and three-dimensional appearance measurement system thereof

A conversion method and technology of three-dimensional topography, which can be used in measurement devices, instruments, optical devices, etc., can solve the problem of time-consuming measurement, and achieve the effect of increasing efficiency, avoiding the influence of surrounding environment disturbance, and omitting time.

Inactive Publication Date: 2010-10-27
陈亮嘉
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Problems solved by technology

[0002] At present, the research on 3D measurement and reconstruction at home and abroad is mainly based on optical projection 3D profilometry, which can be further divided into direct triangulation and phase measurement methods. The direct triangulation method is mainly based on the principle of triangulation measurement. , the point-by-point method scans the object with light points, and the depth information can be calculated by using the geometric triangle relationship of the system. Although the method is simple, the measurement is quite time-consuming

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  • Synchronous hue shift conversion method and three-dimensional appearance measurement system thereof
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  • Synchronous hue shift conversion method and three-dimensional appearance measurement system thereof

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[0033] In order to enable a further understanding and understanding of the features, purposes and functions of the present invention, the relevant detailed structure of the device of the present invention and the rationale for the design are described in detail below:

[0034] The light intensity I of the three primary colors of R, G, and B in a traditional color image r (x, y), I g (x, y), I b (x, y) are all distributed in (0-255). First, the three primary colors R, G, and B are normalized so that their values ​​are between [0, 1]. Then use formula (1) to calculate the mass of R, G, B in all color components, and express it in r, g, b:

[0035] r = R ( R + G + B ) g = G ( R + G + B ...

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Abstract

The invention provides a synchronous hue shift conversion method, a method and a system thereof for measuring three-dimensional appearance. In the invention, a colored fringe image of an object is obtained by using a colored structured light, one hue information of the colored fringe image is obtained from a hue saturation intensity (HSI) model of the colored fringe image, and finally, the hue information is converted into one hue phase change information. The hue phase change information is used to reconstruct the three-dimensional appearance of the object by hue phase reconstruction. Since the colored structured light comprises multiple colored lights having phase difference in the spatial domain, the phase shift or phase reconstruction can be performed if a single colored image contains phase encapsulation information after multi-step phase shifts. Therefore, the processes of traditional phase encapsulation and Euler conversion are omitted, and the efficiencies for the surface reconstruction and the system measurement on the object are improved.

Description

technical field [0001] The present invention relates to a phase shift method and system, in particular to a synchronous hue phase shift conversion method which uses hue information to obtain hue phase change information and then obtains object surface topography information and its three-dimensional topography measurement method and system. Background technique [0002] At present, the research on 3D measurement and reconstruction at home and abroad is mainly based on optical projection 3D profilometry, which can be further divided into direct triangulation and phase measurement methods. The direct triangulation method is mainly based on the principle of triangulation measurement. , the point-by-point method scans the object with light points, and the depth information can be calculated by using the geometric triangle relationship of the system. Although the method is simple, the measurement is quite time-consuming. The phase measurement method is based on measuring the pha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/25
Inventor 陈亮嘉许耀升
Owner 陈亮嘉
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