2 papers
eess.IV2023
Reading hidden writing and drawings on papyrus using speckle optical technique and multispectral images
L. Buffarini, H. J. Rabal, N. L. Cap +3
We carried out an experimental set-up for reading a hidden drawing under papyrus using an optical technique based on the speckle phenomenon that is observed when a rough surface is…
physics.optics2020
Vortex metrology using circular and elliptical Laguerre Gauss kernels
Hector Rabal, Myrian Tebaldi, Astrid Villamizar Amado +2
We propose a generalization of the Laguerre Gauss Transform to include elliptical kernels in vortices metrology. To that end, we broaden the original pseudo field obtained using La…