Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Zhen-Qiu Lu"'
Publikováno v:
Chinese Journal of Geophysics. 47:131-137
In this paper, a reconstruction algorithm of acoustical tomography is presented for absorbing scatterers based on the second-order Rytov transform perturbation approximation. Both the wave number and the absorbing coefficient of the scatterers are re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::577db460aaf7e261c115def63a47eed7
https://doi.org/10.1002/cjg2.463
https://doi.org/10.1002/cjg2.463
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 48:969-975
Until now, all acoustical diffraction reconstruction algorithms are in infinite forms. All of these algorithms have disadvantages: severe limitations on scatterers or tedious calculations. In this paper, we present a new reconstruction algorithm in a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de9625ea8e741c59094f4965470dee1f
https://doi.org/10.1109/58.935713
https://doi.org/10.1109/58.935713
Publikováno v:
IEEE transactions on image processing : a publication of the IEEE Signal Processing Society. 15(5)
A new reconstruction algorithm in a finite form based on the Rytov transform is presented for acoustical diffraction tomography. Applying the Rytov transform to the governing differential wave equation necessarily introduces the so-called generalized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9292d1b07c76e47772e43f85b25281cc
https://pubmed.ncbi.nlm.nih.gov/16671306
https://pubmed.ncbi.nlm.nih.gov/16671306
Publikováno v:
IEEE Transactions on Image Processing; May2006, Vol. 15 Issue 5, p1264-1269, 6p
Autor:
Zhen-Qiu Lu
Publikováno v:
Acoustical Imaging ISBN: 9781461346401
In acoustical diffraction tomography, the inverse scattering perturbation theory, especially the first-order Born perturbation approximation has its advantages: comparatively simple calculations. That is why it has been used in diffraction tomography
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c3988919ceabf0bc570d5ea7efba840
https://doi.org/10.1007/978-1-4419-8588-0_97
https://doi.org/10.1007/978-1-4419-8588-0_97
Publikováno v:
IEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control; Jul2001, Vol. 48 Issue 4, p969, 7p, 4 Black and White Photographs, 1 Chart, 4 Graphs
Publikováno v:
Acoustical Imaging ISBN: 9781461362869
Acoustic transmission diffraction tomography, which is a technique for reconstructing one or several parameters of an object to be imaged from the observed scattered acoustic field outside of the object, is discussed in this paper. Because the wave l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4075f73446f77cac2769d96a6d98de7c
https://doi.org/10.1007/978-1-4615-2958-3_17
https://doi.org/10.1007/978-1-4615-2958-3_17
Autor:
Zhen-Qiu Lu
Publikováno v:
Acoustical Imaging ISBN: 9781461362869
Over the last two decades, there has been a considerable amount of work on the inverse scattering problems, especially for quantum and acoustic waves1–10. But up to now, it is still very difficult to reconstruct a higher dimensional scatterer from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55c8672393b07f94c2a1846acd4a36fb
https://doi.org/10.1007/978-1-4615-2958-3_18
https://doi.org/10.1007/978-1-4615-2958-3_18
Autor:
Zhen-Qiu Lu, Yan-Yun Zhang
Publikováno v:
IEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control; 1996, Vol. 43 Issue 2, p296-302, 7p
Autor:
Zhen-Qiu Lu
Publikováno v:
IEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control; 1986, Vol. 33 Issue 6, p722-730, 9p