Measurement of tissue temporal point spread function (TPSF) by use of a cross-correlation technique with an avalanche photodiode detector

1995 ◽  
Author(s):  
David R. Kirkby ◽  
David T. Delpy
Keyword(s):  
Point Spread Function ◽  
Cross Correlation ◽  
Avalanche Photodiode ◽  
Correlation Technique ◽  
Point Spread ◽  
Spread Function ◽  
Cross Correlation Technique

scholarly journals The cross-correlation search for a hot spot of gravitational waves : Numerical study for point spread function

2012 ◽  
Vol 363 ◽  
pp. 012040
Author(s):  
Yuta Okada ◽  
Nobuyuki Kanda ◽  
Sanjeev Dhurandhar ◽  
Hideyuki Tagoshi ◽  
Hirotaka Takahashi
Keyword(s):  
Gravitational Waves ◽  
Point Spread Function ◽  
Cross Correlation ◽  
Numerical Study ◽  
Hot Spot ◽  
Point Spread ◽  
Spread Function ◽  
The Cross ◽  
Correlation Search

scholarly journals Deghosting, Demultiple, and Deblurring in Controlled-Source Seismic Interferometry

2011 ◽  
Vol 2011 ◽  
pp. 1-28 ◽  
Author(s):  
Joost van der Neut ◽  
Maria Tatanova ◽  
Jan Thorbecke ◽  
Evert Slob ◽  
Kees Wapenaar
Keyword(s):  
Point Spread Function ◽  
Cross Correlation ◽  
Velocity Model ◽  
Seismic Interferometry ◽  
Controlled Source ◽  
Point Spread ◽  
Spread Function ◽  
Different Types

With controlled-source seismic interferometry we aim to redatum sources to downhole receiver locations without requiring a velocity model. Interferometry is generally based on a source integral over cross-correlation (CC) pairs of full, perturbed (time-gated), or decomposed wavefields. We provide an overview of ghosts, multiples, and spatial blurring effects that can occur for different types of interferometry. We show that replacing cross-correlation by multidimensional deconvolution (MDD) can deghost, demultiple, and deblur retrieved data. We derive and analyze MDD for perturbed and decomposed wavefields. An interferometric point spread function (PSF) is introduced that can be obtained directly from downhole data. Ghosts, multiples, and blurring effects that may populate the retrieved gathers can be locally diagnosed with the PSF. MDD of perturbed fields can remove ghosts and deblur retrieved data, but it leaves particular multiples in place. To remove all overburden-related effects, MDD of decomposed fields should be applied.

Point spread function based feature optimization and fusion for underwater objet recognition

2013 ◽  
Vol 26 (11) ◽  
pp. 944-952 ◽  
Author(s):  
Huibin Wang ◽  
Rong Zhang ◽  
Zhe Chen ◽  
Lizhong Xu ◽  
Jie Shen
Keyword(s):  
Point Spread Function ◽  
Point Spread ◽  
Spread Function ◽  
Feature Optimization

Determination of the Point Spread Function of a Computer-Generated Lens Formed by a Phase Light Modulator

2020 ◽  
Vol 128 (7) ◽  
pp. 1036-1040 ◽  
Author(s):  
N. G. Stsepuro ◽  
G. K. Krasin ◽  
M. S. Kovalev ◽  
V. N. Pestereva
Keyword(s):  
Point Spread Function ◽  
Light Modulator ◽  
Point Spread ◽  
Spread Function

Accurate point spread function (PSF) estimation for coded aperture cameras

2014 ◽  
Author(s):  
Jingyu Yang ◽  
Bin Jiang ◽  
Jinlong Ma ◽  
Yi Sun ◽  
Ming Di
Keyword(s):  
Point Spread Function ◽  
Coded Aperture ◽  
Point Spread ◽  
Spread Function ◽  
Psf Estimation

Aberration retrieval from the intensity point-spread function in the focal region using the extended Nijboer–Zernike approach

2005 ◽  
Vol 52 (12) ◽  
pp. 1695-1728 ◽  
Author(s):  
C. Van der Avoort * ◽  
J. J. M. Braat ◽  
P. Dirksen ◽  
A. J. E. M. Janssen
Keyword(s):  
Point Spread Function ◽  
Focal Region ◽  
Point Spread ◽  
Spread Function
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