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Extended- Kalman- filter based reconstruction approach to curved ray optical tomography

Naik, Naren and Vasu, Ram M (1999) Extended- Kalman- filter based reconstruction approach to curved ray optical tomography. In: SPIE:International Conference on Optics and Optoelectronics '98, 9-12 December, Dehradun, India, Vol.3729, 153-157.

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We present an extended Kalman filter (EKF) based approach to the reconstruction problem in curved ray optical tomography. A state variable model describing the tomographic process is set up, and an EKF is applied to the model to estimate the refractive index distribution of an optically transparent refracting object from noisy optical path-length difference data. Preliminary results of reconstructions of a synthetic time-invariant refractive index distribution from projection data of various noise levels are comparable with those obtained from a typically used deterministic approach, the average correction per projection method.

Item Type: Conference Paper
Publisher: SPIE:International Society for Optical Engineering
Additional Information: Copyright of this article belongs to SPIE:International Society for Optical Engineering.
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited: 28 May 2007
Last Modified: 27 Aug 2008 12:42
URI: http://eprints.iisc.ac.in/id/eprint/10279

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