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Proceedings Paper

Imaging small inhomogeneities by time-resolved laser transmittance measurements using different reconstruction procedures
Author(s): Rosario Esposito; Maria Lepore; Ines Delfino; Pietro Luigi Indovina
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Paper Abstract

The possibility of obtaining images of human organs by optical techniques for diagnostic purposes is still under intense investigation. Useful information for devising the most efficient data acquisition procedures and reconstruction algorithms can be obtained by imaging well-controlled small inhomogeneities using different reconstruction procedures. For this purpose we performed time-resolved imaging experiments by embedding in a turbid slab small inclusions with different absorption coefficients. The ability of the imaging system to detect these hidden objects strongly depends on its optical properties and on the method that is adopted to reconstruct images. To this regard, in order to construct images different procedures can be adopted. The efficiency of these different procedures has been valuated by investigating the contrast, the noise and the effective signal-to-noise ratio of constructed images. Furthermore, this data analysis has been used to study the role of the inclusion’s object contrast on the efficiency of the adopted reconstruction algorithm.

Paper Details

Date Published: 29 July 2003
PDF: 8 pages
Proc. SPIE 4955, Optical Tomography and Spectroscopy of Tissue V, (29 July 2003); doi: 10.1117/12.476857
Show Author Affiliations
Rosario Esposito, INFM, Univ. degli Studi di Napoli Federico II (Italy)
Maria Lepore, Seconda Univ. degli Studi di Napoli (Italy)
Ines Delfino, INFM, Univ. degli Studi di Napoli Federico II (Italy)
Pietro Luigi Indovina, INFM, Univ. degli Studi di Napoli Federico II (Italy)

Published in SPIE Proceedings Vol. 4955:
Optical Tomography and Spectroscopy of Tissue V
Britton Chance; Robert R. Alfano; Bruce J. Tromberg; Mamoru Tamura; Eva M. Sevick-Muraca, Editor(s)

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