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Optical transfer model measuring method in coding structured light system

A technology for coding structured light and structured light systems, applied in the field of optical transfer model measurement methods and systems, can solve problems such as lack of influencing factors and corresponding solutions, and achieve the effect of expanding applicability and improving measurement accuracy

Inactive Publication Date: 2014-07-09
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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Problems solved by technology

Most of the improvement methods are from one aspect, or the way of sacrificing other performances, lacking an overall analysis of the influencing factors of system performance and corresponding solutions

Method used

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  • Optical transfer model measuring method in coding structured light system
  • Optical transfer model measuring method in coding structured light system
  • Optical transfer model measuring method in coding structured light system

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Embodiment Construction

[0054] The optical transfer model measurement method in the coded structured light system uses a linear and invariant system to describe the optical transfer process of the coded structured light system, and establishes the optical transfer model of the system, wherein the measurement steps for the optical system transfer model include:

[0055] (1) Theoretical establishment of the optical transfer model of the structured light system: describe the optical transfer process of the coded structured light system with a linear and invariant system, and complete its optical transfer modeling;

[0056] (2) Design the measurement legend: design the corresponding measurement legend in combination with the coded light characteristics and the measurement requirements of the optical transfer function based on image analysis;

[0057] (3) Determine the scaling factor of the structured light system: calculate the scaling factor of the system according to the optical transfer process of the ...

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Abstract

The invention relates to an optical transfer model measuring method in a coding structured light system. The optical transfer model measuring method in the coding structured light system achieves optical transfer modeling of an optoelectronic system for a strip coding structured light system. Firstly, optical transfer modeling of the structured light system is finished theoretically, corresponding measurement legends are designed according to the characteristics of a strip coding light image, measurement of a line spread function of the system is finished through a knife-edge method by using a projected knife edge target, and then Fourier transform is carried out on the line spread function to obtain the optical transfer model of the coding structured light system. The optical transfer model is used for guiding the design of coding structured light, improving the measurement accuracy and expanding the measurement applicability of different reflection surface objects, improves the performance of the coding structured light system, and widens the application range of the structured light technology.

Description

technical field [0001] The invention relates to a measurement system of an optical transfer model, in particular to a method and system for measuring an optical transfer model in a coded structured light system. Background technique [0002] With the development of today's electronic technology and computer technology, 3D technology is widely used in all aspects of people's life and national production, such as 3D animation, 3D games, 3D TV, 3DWeb, reverse engineering, robot navigation, industrial automation production and other fields. [0003] Coded structured light technology, as a visual three-dimensional information acquisition method, has been widely used due to its advantages of lossless, large amount of data, convenient operation and easy implementation. Since the appearance of the structured light method in the 1970s, it has experienced the development process from point, line and surface. The surface-coded structured light method is considered to be a revolutionar...

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Application Information

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IPC IPC(8): G01M11/00G01B11/00G01B11/24
Inventor 许丽
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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