6533b7ddfe1ef96bd1275340

RESEARCH PRODUCT

Three-dimensional object recognition by Fourier transform profilometry

Javier GarciaJosé J. Esteve-taboadaDavid Mas

subject

business.industryComputer scienceMaterials Science (miscellaneous)3D single-object recognitionShort-time Fourier transformCognitive neuroscience of visual object recognitionGratingIndustrial and Manufacturing Engineeringsymbols.namesakeFourier transformAutomatic target recognitionOpticsPattern recognition (psychology)symbolsBusiness and International ManagementbusinessHarmonic wavelet transform

description

An automatic method for three-dimensional (3-D) shape recognition is proposed. It combines the Fourier transform profilometry technique with a real-time recognition setup such as the joint transform correlator (JTC). A grating is projected onto the object surface resulting in a distorted grating pattern. Since this pattern carries information about the depth and the shape of the object, their comparison provides a method for recognizing 3-D objects in real time. A two-cycle JTC is used for this purpose. Experimental results demonstrate the theory and show the utility of the new proposed method.

yearjournalcountryeditionlanguage
2008-03-08Applied Optics
https://doi.org/10.1364/ao.38.004760