Physics – Optics
Scientific paper
Apr 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1236..377m&link_type=abstract
INTERNATIONAL CONFERENCE ON ADVANCED PHASE MEASUREMENT METHODS IN OPTICS AND IMAGING. AIP Conference Proceedings, Volume 1236,
Physics
Optics
Diffraction Gratings, Light Emitting Diodes, Cameras, Lenses, Gratings, Light-Emitting Devices, Optical Elements, Devices, And Systems, Lenses, Prisms And Mirrors
Scientific paper
In order to obtain a 3D-shape with grating projection method, the authors previously presented whole-space tabulation method (WSTM). The relationship between the coordinates and the phase of the grating recorded at each pixel of a camera is obtained as calibration tables in three-dimensional space by experiment beforehand. Therefore the analysis is very fast because of looking at the calibration tables without any complex calculation. It provides fine resolution even when the phase distribution of the grating is not linear. In this paper, a grating projector with three light emitted diode (LED) light sources is proposed. It provides a low cost system. The theory and experimental results are shown.
Amino Yuki
Fujigaki Motoharu
Masaya Akihiro
Morimoto Yoshiharu
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