Automatic sound speed selection in photoacoustic image reconstruction using an autofocus approach
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Treeby, Bradley; Varslot, Trond; Zhang, Edward; Laufer, Jan G; Beard, Paul
Description
The 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...[Show more]
dc.contributor.author | Treeby, Bradley | |
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dc.contributor.author | Varslot, Trond | |
dc.contributor.author | Zhang, Edward | |
dc.contributor.author | Laufer, Jan G | |
dc.contributor.author | Beard, Paul | |
dc.date.accessioned | 2015-12-10T22:55:08Z | |
dc.identifier.issn | 1083-3668 | |
dc.identifier.uri | http://hdl.handle.net/1885/59968 | |
dc.description.abstract | The 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.publisher | SPIE - The International Society for Optical Engineering | |
dc.source | Journal of Biomedical Optics | |
dc.subject | Keywords: 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.title | Automatic sound speed selection in photoacoustic image reconstruction using an autofocus approach | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 16 | |
dc.date.issued | 2011 | |
local.identifier.absfor | 020405 - Soft Condensed Matter | |
local.identifier.ariespublication | u9210271xPUB515 | |
local.type.status | Published Version | |
local.contributor.affiliation | Treeby, Bradley, College of Engineering and Computer Science, ANU | |
local.contributor.affiliation | Varslot, Trond, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Zhang, Edward, University College | |
local.contributor.affiliation | Laufer, Jan G, University College | |
local.contributor.affiliation | Beard, Paul, University College | |
local.description.embargo | 2037-12-31 | |
local.bibliographicCitation.issue | 9 | |
local.bibliographicCitation.startpage | 090501 | |
local.bibliographicCitation.lastpage | 3 | |
local.identifier.doi | 10.1117/1.3619139 | |
local.identifier.absseo | 970102 - Expanding Knowledge in the Physical Sciences | |
dc.date.updated | 2016-02-24T11:56:29Z | |
local.identifier.scopusID | 2-s2.0-80052539242 | |
Collections | ANU Research Publications |
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