Results 21 to 30 of about 36,249 (243)

Mean gradient descent: an optimization approach for single-shot interferogram analysis. [PDF]

open access: yesJournal of The Optical Society of America A-optics Image Science and Vision, 2019
Complex object wave recovery from a single-shot interference pattern is an important practical problem in interferometry and digital holography. The most popular single-shot interferogram analysis method involves Fourier filtering of the cross term, but ...
Sunaina Rajora, Mansi Butola, K. Khare
semanticscholar   +1 more source

Applications of SAR Interferometry in Earth and Environmental Science Research

open access: yesSensors, 2009
This paper provides a review of the progress in regard to the InSAR remote sensing technique and its applications in earth and environmental sciences, especially in the past decade.
Xiaobing Zhou, Ni-Bin Chang, Shusun Li
doaj   +1 more source

Imaging through turbulence with a quadrature-phase optical interferometer [PDF]

open access: yes, 2005
We present an improved technique for imaging through turbulence at visible wavelengths using a rotation shearing pupil-plane interferometer, intended for astronomical and terrestrial imaging applications.
Dimotakis, Paul E.   +4 more
core   +1 more source

Surface Topology Reconstruction From The White Light Interferogram By Means Of Prony Analysis

open access: yesMetrology and Measurement Systems, 2015
The paper presents a new method of surface topology reconstruction from a white light interferogram. The method is based on interferogram modelling by complex exponents (Prony method).
Khoma Anna, Zygarlicki Jarosław
doaj   +1 more source

Source brightness fluctuation correction of solar absorption fourier transform mid infrared spectra [PDF]

open access: yesAtmospheric Measurement Techniques, 2011
The precision and accuracy of trace gas observations using solar absorption Fourier Transform infrared spectrometry depend on the stability of the light source. Fluctuations in the source brightness, however, cannot always be avoided.
T. Ridder, T. Warneke, J. Notholt
doaj   +1 more source

Reducing the impact of source brightness fluctuations on spectra obtained by Fourier-transform spectrometry [PDF]

open access: yes, 2007
We present a method to reduce the impact of source brightness fluctuations (SBFs) on spectra recorded by Fourier-transform spectrometry (FTS). Interferograms are recorded without AC coupling of the detector signal (DC mode). The SBF are determined by low-
Deutscher, Nicholas M.   +3 more
core   +1 more source

Using apriori information in interferometric processing of high resolution sar data

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016
The paper presents an analysis of approaches to using apriori information on relief to improve the quality of spaceborne SAR data interferometric processing.
V. A. Ushenkin, N. A. Egoshkin
doaj   +1 more source

Data reduction methods for single-mode optical interferometry - Application to the VLTI two-telescopes beam combiner VINCI [PDF]

open access: yes, 2004
The interferometric data processing methods that we describe in this paper use a number of innovative techniques. In particular, the implementation of the wavelet transform allows us to obtain a good immunity of the fringe processing to false detections ...
Berger   +32 more
core   +1 more source

Minimizing the residual topography effect on interferograms to improve DInSAR results: estimating land subsidence in Port-Said City, Egypt [PDF]

open access: yes, 2017
The accurate detection of land subsidence rates in urban areas is important to identify damage-prone areas and provide decision-makers with useful information.
Darwish, Noura   +2 more
core   +2 more sources

New SAR Interferogram denoising method via sparse recovery based on L0 norm [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
The goal of this paper is to estimate a denoised phase image from the observed noisy SAR interferogram. We proposed a linear model to obtain a sparse representation of the interferomteric phase image.
W. Ben Abdallah, R. Abdelfattah
doaj   +1 more source

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