3D profile measurement of an object is studied experimentally by using a standard fringe projection technique consisting of a CCD camera and a digital projector. The height profile of the object is calculated through the phase change distribution of the projected fringes from the phase and phase gradient of the wavelet transform. Experimental results for the Fourier transform profilometry algorithm are compared with the results of wavelet analysis.
Transmittance spectra of 5CB and ZLI-6000 coded nematic liquid
crystals were acquired in the 12 600– 22 200 cm−1
region at room temperature. The continuous wavelet transform using the Morlet
wavelet was applied to analyse the transmittance signal. Dispersion curves of the
birefringence were obtained for 5CB and ZLI-6000 by this analysis and data were
fitted to the Cauchy formula whereby the dispersion parameters were extracted.
Results are found to be in favourable accordance with the published values.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.