We propose a novel three-dimensional (3-D) object-recognition method based on a Fourier-transform profilometry technique and a two-dimensional (2-D) correlation technique. Height information on 3-D objects is transformed to phase information on 2-D complex amplitude by use of the Fourier-transform profilometry technique. 3-D objects are recognized using correlation by use of the transformed complex amplitude.
© 2000 Optical Society of America
(070.4550) Fourier optics and signal processing : Correlators
(100.2650) Image processing : Fringe analysis
(100.5010) Image processing : Pattern recognition
(150.6910) Machine vision : Three-dimensional sensing
Nobukazu Yoshikawa and Toyohiko Yatagai, "Fringe pattern correlator for three-dimensional object recognition," Opt. Lett. 25, 1424-1426 (2000)