Acta Optica Sinica, Volume. 20, Issue 6, 787(2000)
Color Multi-Channel Grating Profilometry
A new method of two-channel phase measuring profilometry is presented. In color space, red and blue are independent, so they can be regarded as independent information channels. Two phase-opposite linearly coded gratings are put in red and blue channels, respectively, forming a color coded projecting grating. The image is received by a color CCD camera and digitized by PC based frame grabber. From red and blue channels two phase-opposite grate-modulated pictures with single sampling can be obtained. The proposed phase measuring profilometry can be used in the measurement of a dynamic profile.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese]. Color Multi-Channel Grating Profilometry[J]. Acta Optica Sinica, 2000, 20(6): 787