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dc.contributor.authorVarray, François
dc.contributor.authorCachard, Christian
dc.contributor.authorKybic, Jan
dc.contributor.authorNovell, Anthony
dc.contributor.authorBouakaz, Ayache
dc.contributor.authorBasset, Olivier
dc.date.accessioned2014-12-10T13:36:17Z
dc.date.available2014-12-10T13:36:17Z
dc.date.issued2012
dc.identifier.citationVARRAY, F. - CACHARD, C. - KYBIC, J. - NOVELL, A. - BOUAKAZ, A. - et al.: A Multi-Frequency Approach to Increase the Native Resolution of Ultrasound Images. In EUSIPCO 2012: 20th European Signal Processing Conference. Piscataway: IEEE, 2012, p. 2733-2737. ISSN 2076-1465. ISBN 978-1-4673-1068-0.eng
dc.identifier.isbn978-1-4673-1068-0
dc.identifier.issn2076-1465
dc.identifier.urihttp://hdl.handle.net/10467/60963
dc.description.abstractIn ultrasound (US), a natural competition exists between the resolution of the image and the depth-of-field (DOF) into the medium, competition which is difficult to overcome with current US probe. Using large bandwidth transducer, such as cMUT, and the possibility to transmit several frequencies in one single transmission, we propose a multi-frequency scheme based on the frequency compounding (FC) technique to improve the native resolution of the US image and the DOF. In a first time, the different images at the different frequencies are created and a specific time-gain-compensation is used to compensate for the frequency attenuation. Then, the multi-frequency (MF) image is created in order to enhance the resolution and the SNR in the radio frequency domain. The resulting evaluations, through simulations and experiments, show a visible increase of the SNR and of the resolution. Moreover, the exploration depth is improved thanks to the attenuation compensation.eng
dc.language.isoencze
dc.publisherIEEEeng
dc.rights(c) 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.eng
dc.subjectResearch Subject Categories::TECHNOLOGY::Electrical engineering, electronics and photonicseng
dc.subject.lccmulti resolutioneng
dc.subject.lccultrasoundeng
dc.subject.lcccMUT
dc.subject.lccradio frequency imageeng
dc.subject.lccfrequency compoundingeng
dc.titleA Multi-Frequency Approach to Increase the Native Resolution of Ultrasound Imageseng
dc.typeArticleeng


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