Dynamic optical tomography: resolution and contrast enhancement by frequency-filtering

Author

Barbour, Randall L. ; Graber, Harry L. ; Pei, Yaling ; Feng-Bao Lin

Author_Institution

Downstate Med. Center, State Univ. of New York, Brooklyn, NY, USA

Volume

2

fYear

1999

fDate

36434

Abstract

We demonstrate the capacity to significantly enhance the resolution and contrast of internal structures imaged by dynamic optical tomography. We recognize that the presence of time-harmonic behavior (e.g., vasomotion), permits use of simple feature-extraction protocols capable of producing a high-contrast image. Results obtained from numerical simulation of a medium experiencing localized spatial harmonic behavior showed that target contrast could be improved by a factor of 40, accompanied by a marked improvement in resolution

Keywords

biomedical imaging; blood vessels; feature extraction; image resolution; medical image processing; optical filters; optical tomography; contrast enhancement; dynamic optical tomography; feature-extraction protocols; frequency-filtering; high-contrast image; internal structures; localized spatial harmonic behavior; numerical simulation; resolution; target contrast; time-harmonic behavior; vasomotion; Absorption; Biomedical imaging; Biomedical optical imaging; Computational modeling; Frequency; Image analysis; Optical imaging; Optical scattering; Spatial resolution; Tomography;

fLanguage

English

Publisher

ieee

Conference_Titel

[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint

Conference_Location

Atlanta, GA

ISSN

1094-687X

Print_ISBN

0-7803-5674-8

Type

conf

DOI

10.1109/IEMBS.1999.804250

Filename

804250