Image sensor based Diffuse Optical Tomographic System

Medhi, B and Kandhirodan, R (2019) Image sensor based Diffuse Optical Tomographic System. In: 2019 2nd International Conference on Signal Processing and Communication (ICSPC), 29-30 March 2019, Coimbatore, India, India, pp. 208-211.

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Abstract

Diffuse optical tomography (DOT) is a promising biomedical imaging modality that can provide the metabolic state of tissues sitting deep inside body, non-invasively. This health state is mapped from the recovered three-dimensional distribution of optical parameters, estimated from boundary photon-flux measurements. In a conventional DOT imaging system, delivery of probing beam to tissue and photon flux measurements are carried out with the help of dedicated optical fiber arrangements. A modified experimental setup is proposed that replaces the measuring optical fibers by a camera unit, and the experimental results obtained from a tissue mimicking phantom are reported. The camera measures the boundary photon-flux over the region of interest (ROI) space-continuously in a denser grid. The increase of measurements per projection improves the rank of the system matrix and hence reduces the ill-posedness associated with the DOT imaging. Experimental results obtained from a tissue mimicking cylindrical shape phantom are presented that show a good agreement with the known values. © 2019 IEEE.

Item Type:	Conference Paper
Publication:	2nd International Conference on Signal Processing and Communication, ICSPC 2019 - Proceedings
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	cited By 0; Conference of 2nd International Conference on Signal Processing and Communication, ICSPC 2019 ; Conference Date: 29 March 2019 Through 30 March 2019; Conference Code:157354
Keywords:	Cameras; Image segmentation; Medical imaging; Optical fibers; Optical tomography; Phantoms; Photons, Biomedical imaging; Cylindrical shapes; Diffuse optical tomography; Fiber arrangement; Optical parameter; The region of interest (ROI); Tissue mimicking phantom; Tomographic systems, Tissue
Department/Centre:	Division of Physical & Mathematical Sciences > Physics Autonomous Societies / Centres > Society for Innovation and Development
Date Deposited:	03 Nov 2020 07:50
Last Modified:	03 Nov 2020 07:50
URI:	http://eprints.iisc.ac.in/id/eprint/65666

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