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dc.contributor.CRUESPUniversidade Estadual de Campinaspt
dc.typeArtigo de periódicopt
dc.titleA comparison of imaging conditions for wave-equation shot-profile migrationpt
dc.contributor.authorSchleicher, Jpt
dc.contributor.authorCosta, JCpt
dc.contributor.authorNovais, Apt
unicamp.author.emailjs@ime.unicamp.brpt
unicamp.author.emailjesse@ufpa.brpt
unicamp.author.emailamelia@ime.unicamp.brpt
unicamp.authorSchleicher, Joerg Novais, Amelia Univ Estadual Campinas, Dept Appl Math, Campinas, Brazilpt
unicamp.authorCosta, Jess C. Fed Univ Para, Fac Geophys, BR-66059 Belem, Para, Brazilpt
dc.subjectdeconvolutionpt
dc.subjectgeophysical signal processingpt
dc.subjectimage processingpt
dc.description.abstractThe application of a deconvolution imaging condition in wave-equation shot-profile migration is important to provide illumination compensation and amplitude recovery. Particularly if the aim is to successfully recover a measure of the medium reflectivity, an imaging condition that destroys amplitudes is unacceptable. We study a set of imaging conditions with illumination compensation. The imaging conditions are evaluated by the quality of the output amplitudes and artifacts produced. In numerical experiments using a vertically inhomogeneous velocity model, the best of all imaging conditions we tested is the one that divides the crosscorrelation of upgoing and downgoing wavefields by the autocorrelation of the downgoing wavefield, also known as the illumination map. In an application to Marmousi data, unconditional division by autocorrelation turned out to be unstable. Effective stabilization was achieved by smoothing the illumination map.pt
dc.relation.ispartofGeophysicspt_BR
dc.relation.ispartofabbreviationGeophysicspt
dc.publisher.cityTulsapt
dc.publisher.countryEUApt
dc.publisherSoc Exploration Geophysicistspt
dc.date.issued2008pt
dc.date.monthofcirculationNOV-DECpt
dc.identifier.citationGeophysics. Soc Exploration Geophysicists, v. 73, n. 6, n. S219, n. S227, 2008.pt
dc.language.isoenpt
dc.description.volume73pt
dc.description.issuenumber6pt
dc.description.initialpageS219pt
dc.description.lastpageS227pt
dc.rightsabertopt
dc.sourceWeb of Sciencept
dc.identifier.issn0016-8033pt
dc.identifier.wosidWOS:000261211600020pt
dc.identifier.doi10.1190/1.2976776pt
dc.description.sponsorshipPetrobraspt
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt
dc.description.sponsorship1Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt
dc.description.sponsorship1Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt
dc.date.available2014-11-19T03:51:54Z
dc.date.available2015-11-26T17:57:05Z-
dc.date.accessioned2014-11-19T03:51:54Z
dc.date.accessioned2015-11-26T17:57:05Z-
dc.description.provenanceMade available in DSpace on 2014-11-19T03:51:54Z (GMT). No. of bitstreams: 1 WOS000261211600020.pdf: 1751121 bytes, checksum: 118204eceed0bf90ab0fb22f5fd7b5b9 (MD5) Previous issue date: 2008en
dc.description.provenanceMade available in DSpace on 2015-11-26T17:57:05Z (GMT). No. of bitstreams: 2 WOS000261211600020.pdf: 1751121 bytes, checksum: 118204eceed0bf90ab0fb22f5fd7b5b9 (MD5) WOS000261211600020.pdf.txt: 31654 bytes, checksum: d71ece930dba6465588f52cd636cdb11 (MD5) Previous issue date: 2008en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/52990pt_BR
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/52990
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/52990-
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