Object three-dimension surface shape measuring system and method based on fringe projection principle
A three-dimensional surface shape and fringe projection technology, which is applied to measuring devices, instruments, and optical devices, can solve the problems of complex operation and poor portability, and achieve the effects of simple operation, low time cost, and fast measurement speed
Inactive Publication Date: 2018-02-23
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Therefore, it is urgent to find a method that can solve the poor portability and
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[0036] In this embodiment, a face mask is taken as an example, and the three-dimensional shape information of the face mask is measured by using the three-dimensional shape measurement system provided by the present invention.
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An object three-dimension surface shape measuring system and a method based on a fringe projection principle belong to the object three dimensional measuring technical fields. The method fixes a miniature optical projection element on a mobile phone flash lamp cover, so a sine fringe raster built in the optical projection element can be projected on the surface of a to-be-measured object when theflash lamp is opened; in addition, the intelligent mobile phone can gather deformed fringes obtained by modulating the surface of the to-be-measured object; a data processing module can process the data so as to display the object three dimensional surface shape information on the intelligent mobile phone display screen. Compared with a conventional three-dimension surface shape measuring system based on fringe projection, the measuring system is economical and portable; the measuring method is simple in operation, fast in measuring speed, thus applying the three-dimension surface shape measuring system in daily lives.
Description
technical field [0001] The invention belongs to the technical field of three-dimensional measurement of objects, and in particular relates to a system and method for measuring three-dimensional surface shapes of objects based on the fringe projection principle. Background technique [0002] With the rapid development of precision machining, automobile manufacturing, precision optical processing, semiconductor industry, precision instrument manufacturing, mold design, reverse engineering and other fields, traditional two-dimensional measurement equipment can no longer meet the increasingly modern and automated production requirements. Three-dimensional measurement Technology came into being. At present, the three-dimensional surface measurement of objects mainly includes contact three-coordinate measuring instrument, optical scanning, interferometer and so on. However, the measurement time of the contact three-coordinate machine is quite long (usually more than several hours...
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CPCG01B11/2433
Inventor 刘丹佶岳慧敏潘志鹏吴雨祥
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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