Autofocusing ultrasonic imagery for non-destructive testing and evaluation of specimens with complicated geometries

Drinkwater, 2006, Ultrasonic arrays for non-destructive evaluation: a review, NDT&E Int, 39, 525, 10.1016/j.ndteint.2006.03.006

Holmes, 2005, Post-processing of the full matrix of ultrasonic transmit-receive array data for non-destructive evaluation, NDT&E Int, 38, 701, 10.1016/j.ndteint.2005.04.002

Wilcox, 2007, Advanced reflector characterization with ultrasonic phased arrays in NDE applications, IEEE Trans Ultrason Ferroelect Freq Control, 54, 1541, 10.1109/TUFFC.2007.424

Russell J, Long R, Cawley P. Inspection of components with irregular surfaces using a conformable ultrasonic phased array. In: Review of progress in QNDE, Chicago, USA, 2008.

Zhang J, Drinkwater BW, Wilcox PD. The use of scattering coefficient matrix to predict multi-mode array inspection. In: Review of progress in QNDE, Chicago, USA, 2008.

Toullelan G, Nadim A, Casula O, Dumas P. Flexible arrays for the ultrasonic inspection of complex parts. In: Review of progress in QNDE, Chicago, USA, 2008.

Mackersie JW, Gachagan A. Development of an efficient, conformable array structure. In: Review of progress in QNDE, Chicago, USA, 2008.

Connolly G, Lowe MJS, Temple A. Imaging of simple defects in austenitic steel welds using a simulated ultrasonic array. In: Review of progress in QNDE, Chicago, USA, 2008.

Fienup JR. Phase error correction by shear averaging. In: Signal recovery and synthesis III. Optical Society of America; 1989. p. 134–7.

Wahl, 1994, Phase gradient autofocus—a robust tool for high resolution SAR phase correction, IEEE Trans Aerosp Electron Syst, 30, 827, 10.1109/7.303752

Johnson, 1995, A method for estimating the sub-wavelength sway of a sonar towfish, IEEE J Oceanic Eng, 20, 258, 10.1109/48.468240

Bonifant, 2000, Interferometric height estimation of the seafloor in the presence of motion errors, IEE Proc Radar Sonar Navig, 147, 322, 10.1049/ip-rsn:20000618

Bellettini, 2002, Theoretical accuracy of synthetic aperture sonar micronavigation using a displaced phase-center antenna, IEEE J Oceanic Eng, 27, 780, 10.1109/JOE.2002.805096

Gough, 2004, Displaced ping imaging autofocus for a multi-hydrophone array, IEE Proc Radar Sonar Navig, 151, 163, 10.1049/ip-rsn:20040420

Knox, 1974, Recovery of images from atmospherically degraded short-exposure photographs, Astrophys J, 193, L45, 10.1086/181627

Bates, 1980, Towards true imaging by wide band speckle interferometry, Opt Commun, 32, 365, 10.1016/0030-4018(80)90261-8

Lohmann, 1983, Speckle masking in astronomy: triple correlation theory and applications, Appl Opt, 22, 4028, 10.1364/AO.22.004028

Flax, 1988, Phase-aberration correction using signals from point reflectors and diffuse scatterers: basic principles, IEEE Trans Ultrason Ferroelect, Freq Control, 35, 758, 10.1109/58.9333

Trahey, 1992, Synthetic receive aperture imaging with phase correction for motion and for tissue inhomogeneities—part II: effects of and correction for motion, IEEE Trans Ultrason Ferroelect Freq Control, 39, 496, 10.1109/58.148540

Ng, 1997, A speckle target adaptive imaging technique in the presence of distributed aberrations, IEEE Trans Ultrason Ferroelect Freq Control, 44, 140, 10.1109/58.585209

Karaman, 1998, Adaptive multi-element synthetic aperture imaging with motion and phase abberation correction, IEEE Trans Ultrason Ferroelect Freq Control, 45, 1077, 10.1109/58.710591

Haun, 2004, Overdetermined least-squares aberration estimates using common-midpoint signals, IEEE Trans Med Imag, 23, 1205, 10.1109/TMI.2004.831792

Hileman, 1968, Automated static corrections, Geophys Prospect, 16, 326, 10.1111/j.1365-2478.1968.tb01980.x

Taner, 1974, Estimation and correction of near-surface time anomalies, Geophysics, 39, 441, 10.1190/1.1440441

Fienup, 2003, Aberration correction by maximizing generalized sharpness metrics, J Opt Soc Am, 20, 609, 10.1364/JOSAA.20.000609

Fortune SA. Phase error estimation for synthetic aperture imagery. PhD thesis, Department of Electrical and Electronic Engineering, University of Canterbury, New Zealand; June 2005.

Kolman J. PACE: an autofocus algorithm for SAR. In: Radar conference. IEEE; 2005. p. 310–4.

Muller, 1974, Real-time correction of atmospherically degraded telescope images through image sharpening, J Opt Soc Am, 64, 1200, 10.1364/JOSA.64.001200

Nock L, Trahey GE, Smith SW. Phase aberration correction in medical ultrasound using speckle brightness as a quality factor. J Acoust Soc Am 1989; 85:1819–33.

Fortune, 2004, Statistics of the contrast of coherent images, J Opt Soc Am A, 21, 1131, 10.1364/JOSAA.21.001131

Foley, 1994

Avriel, 2003

Kirkpatrick, 1983, Optimization by simulated annealing, Science, 220, 671, 10.1126/science.220.4598.671

Szu, 1987, Fast simulated annealing, Phys Lett A, 122, 157, 10.1016/0375-9601(87)90796-1

Ingber, 1996, Adaptive simulated annealing (ASA): lessons learned, Control Cybern., 25, 33

Hunter, 2008, The wavenumber algorithm for full matrix imaging using an ultrasonic array, IEEE Trans Ultrason Ferroelect Freq Control, 55, 2450, 10.1109/TUFFC.952

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