Influence of missing array elements on phase aberration correction for medical ultrasound

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buir.contributor.authorAtalar, Abdullah
buir.contributor.authorKöymen, Hayrettin
buir.contributor.orcidAtalar, Abdullah|0000-0002-1903-1240
dc.citation.epage620en_US
dc.citation.issueNumber5en_US
dc.citation.spage613en_US
dc.citation.volumeNumber41en_US
dc.contributor.authorKaraman, M.en_US
dc.contributor.authorKöymen, Hayrettinen_US
dc.contributor.authorAtalar, Abdullahen_US
dc.contributor.authorO'Donnell, M.en_US
dc.date.accessioned2015-07-28T12:07:19Z
dc.date.available2015-07-28T12:07:19Z
dc.date.issued1994en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractThe influence of missing array elements on aberration correction based on time delay estimation using radio frequency signals of neighboring elements is experimentally investigated. Normalized cross correlation and sum of absolute differences are employed as the cost functions in aberration estimation. Their performance is tested through various measurements using radio frequency data acquired with a 3.3 MHz, 64-element phased array. Variation of cost functions and phase estimation error are obtained for different combinations of number of missing elements, amount of aberration, and noise level. For a particular combination of these parameters, a set of B-scan images is reconstructed and presented to examine the effects of residual phase errors on image quality.en_US
dc.description.provenanceMade available in DSpace on 2015-07-28T12:07:19Z (GMT). No. of bitstreams: 1 10.1109-58.308496.pdf: 806021 bytes, checksum: 36d3939e1c666337f898a0719c417f20 (MD5)en
dc.identifier.doi10.1109/58.308496en_US
dc.identifier.issn0885-3010
dc.identifier.urihttp://hdl.handle.net/11693/13631
dc.language.isoEnglishen_US
dc.publisherIEEEen_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/58.308496en_US
dc.source.titleIEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Controlen_US
dc.subjectDiffuse scatterersen_US
dc.subjectPoint reflectorsen_US
dc.subjectBasic principlesen_US
dc.subjectSignalsen_US
dc.titleInfluence of missing array elements on phase aberration correction for medical ultrasounden_US
dc.typeArticleen_US

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