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Automatic sound speed selection in photoacoustic image reconstruction using an autofocus approach

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dc.contributor.authorTreeby, Bradley
dc.contributor.authorVarslot, Trond
dc.contributor.authorZhang, Edward
dc.contributor.authorLaufer, Jan G
dc.contributor.authorBeard, Paul
dc.date.accessioned2015-12-10T22:55:08Z
dc.date.issued2011
dc.date.updated2016-02-24T11:56:29Z
dc.description.abstractThe reconstruction of images in photoacoustic tomography is reliant on specifying the speed of sound within the propagation medium. However, for in vivo imaging, this value is not normally accurately known. Here, an autofocus approach for automatically selecting the sound speed is proposed. This is based on maximizing the sharpness of the reconstructed image as quantified by a focus function. Several focus functions are investigated, and their performance is discussed. The method is demonstrated using phantom measurements made in a medium with a known sound speed and in vivo measurements of the vasculature in the flank of an adult mouse.
dc.identifier.issn1083-3668
dc.identifier.urihttp://hdl.handle.net/1885/59968
dc.publisherSPIE - The International Society for Optical Engineering
dc.sourceJournal of Biomedical Optics
dc.subjectKeywords: Adult mice; auto- focus; Focus function; in vivo imaging; In-vivo measurement; Phantom measurements; Photoacoustic tomography; Reconstructed image; sound speed; Vasculature; Image reconstruction; Mammals; Photoacoustic effect; Tomography; Ultrasonic veloc auto- focus; image reconstruction; in vivo imaging; photoacoustic tomography; sound speed
dc.titleAutomatic sound speed selection in photoacoustic image reconstruction using an autofocus approach
dc.typeJournal article
local.bibliographicCitation.issue9
local.bibliographicCitation.lastpage3
local.bibliographicCitation.startpage090501
local.contributor.affiliationTreeby, Bradley, College of Engineering and Computer Science, ANU
local.contributor.affiliationVarslot, Trond, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationZhang, Edward, University College
local.contributor.affiliationLaufer, Jan G, University College
local.contributor.affiliationBeard, Paul, University College
local.contributor.authoruidTreeby, Bradley, u4982447
local.contributor.authoruidVarslot, Trond, u3082880
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.identifier.absfor020405 - Soft Condensed Matter
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciences
local.identifier.ariespublicationu9210271xPUB515
local.identifier.citationvolume16
local.identifier.doi10.1117/1.3619139
local.identifier.scopusID2-s2.0-80052539242
local.type.statusPublished Version

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