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Proceedings Paper

Wavelet-based multiresolution extended Kalman filter approach to the reconstruction problem of curved-ray optical tomography
Author(s): Naren Naik; Ram M. Vasu
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Paper Abstract

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

Paper Details

Date Published: 17 May 1999
PDF: 10 pages
Proc. SPIE 3642, High-Speed Imaging and Sequence Analysis, (17 May 1999); doi: 10.1117/12.348424
Show Author Affiliations
Naren Naik, Indian Institute of Science (India)
Ram M. Vasu, Indian Institute of Science (India)

Published in SPIE Proceedings Vol. 3642:
High-Speed Imaging and Sequence Analysis
Alan M. Frank; Alan M. Frank; James S. Walton, Editor(s)

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