Simultaneous unwrapping and low pass filtering of continuous phase maps based on autoregressive phase model and wrapped Kalman filtering
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2019.105826
Abstract: Abstract We propose a simultaneous noise filtering and phase unwrapping algorithm. Spatial evolution of phase is modeled as an autoregressive Gaussian Markov random field. Accordingly, phase value at a pixel is related to phase values… read more here.
Keywords: pass filtering; unwrapping low; simultaneous unwrapping; wrapped kalman ... See more keywords
Low-pass filtering compensation in common-path digital holographic microscopy
Sign Up to like & getrecommendations! Published in 2020 at "Applied Physics Letters"
DOI: 10.1063/5.0019209
Abstract: A low-pass filtering compensation (LPFC) method is proposed to compensate for phase aberrations in point diffraction-based common-path digital holographic microscopy. This method estimates the phase aberration from the object hologram by Fourier transform and low-pass… read more here.
Keywords: phase; microscopy; compensation; pass filtering ... See more keywords
Effect of Low-Pass Filtering on Passivity and Rendering Performance of Series Elastic Actuation.
Sign Up to like & getrecommendations! Published in 2023 at "IEEE transactions on haptics"
DOI: 10.1109/toh.2023.3273168
Abstract: We study the effect of low-pass filtering on the passivity and performance of series elastic actuation (SEA) under velocity-sourced impedance control (VSIC) while rendering virtual linear springs and the null impedance. We analytically derive the… read more here.
Keywords: passivity; pass filtering; effect low; low pass ... See more keywords