Image formation of multifrequency vibro-acoustography: Theory and computational simulations

Glauber T. Silva, Matthew W Urban

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This paper presents an extension of vibro-acoustography imaging technique. The standard technique relies on the single-frequency dynamic radiation force (or stress) produced by a highly focused dual-frequency ultrasound beam. We propose a multifrequency vibro-acoustography method based on the radiation stress generated by a beam with multiple frequencies. The system point-spread function (PSF) is obtained in terms of the acoustic emission by a point-target in response to the employed radiation stress. The PSF is evaluated for an eight- and a sixteen-element sector array transducers. Three phantom images are used to show how the system transforms them into observed data. Considering only visual criteria such as contrast and resolution, simulations show the sixteen-element sector transducer renders better images.

Original languageEnglish (US)
Title of host publicationBrazilian Symposium of Computer Graphic and Image Processing
Pages5-12
Number of pages8
Volume2005
DOIs
StatePublished - 2005
EventSIBGRAPI 2005: 18th Brazilian Symposium on Computer Graphics and Image Processing - Conference Proceedings - Natal, Rio Grande do Norte, Brazil
Duration: Oct 9 2005Oct 12 2005

Other

OtherSIBGRAPI 2005: 18th Brazilian Symposium on Computer Graphics and Image Processing - Conference Proceedings
CountryBrazil
CityNatal, Rio Grande do Norte
Period10/9/0510/12/05

Fingerprint

Image processing
Optical transfer function
Radiation
Transducers
Acoustic emissions
Ultrasonics
Imaging techniques

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Silva, G. T., & Urban, M. W. (2005). Image formation of multifrequency vibro-acoustography: Theory and computational simulations. In Brazilian Symposium of Computer Graphic and Image Processing (Vol. 2005, pp. 5-12). [1599078] https://doi.org/10.1109/SIBGRAPI.2005.30

Image formation of multifrequency vibro-acoustography : Theory and computational simulations. / Silva, Glauber T.; Urban, Matthew W.

Brazilian Symposium of Computer Graphic and Image Processing. Vol. 2005 2005. p. 5-12 1599078.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Silva, GT & Urban, MW 2005, Image formation of multifrequency vibro-acoustography: Theory and computational simulations. in Brazilian Symposium of Computer Graphic and Image Processing. vol. 2005, 1599078, pp. 5-12, SIBGRAPI 2005: 18th Brazilian Symposium on Computer Graphics and Image Processing - Conference Proceedings, Natal, Rio Grande do Norte, Brazil, 10/9/05. https://doi.org/10.1109/SIBGRAPI.2005.30
Silva GT, Urban MW. Image formation of multifrequency vibro-acoustography: Theory and computational simulations. In Brazilian Symposium of Computer Graphic and Image Processing. Vol. 2005. 2005. p. 5-12. 1599078 https://doi.org/10.1109/SIBGRAPI.2005.30
Silva, Glauber T. ; Urban, Matthew W. / Image formation of multifrequency vibro-acoustography : Theory and computational simulations. Brazilian Symposium of Computer Graphic and Image Processing. Vol. 2005 2005. pp. 5-12
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