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A General Local Reconstruction Approach Based on a Truncated Hilbert Transform
Journal article   Open access   Peer reviewed

A General Local Reconstruction Approach Based on a Truncated Hilbert Transform

Yangbo Ye, Hengyong Yu, Yuchuan Wei and Ge Wang
International journal of biomedical imaging, Vol.2007(2007), pp.1-8
01/01/2007
DOI: 10.1155/2007/63634
PMCID: PMC1987387
PMID: 18256734
url
https://doi.org/10.1155/2007/63634View
Published (Version of record) Open Access

Abstract

Exact image reconstruction from limited projection data has been a central topic in the computed tomography (CT) field. In this paper, we present a general region-of-interest/volume-of-interest (ROI/VOI) reconstruction approach using a truly truncated Hilbert transform on a line-segment inside a compactly supported object aided by partial knowledge on one or both neighboring intervals of that segment. Our approach and associated new data sufficient condition allows the most flexible ROI/VOI image reconstruction from the minimum account of data in both the fan-beam and cone-beam geometry. We also report primary numerical simulation results to demonstrate the correctness and merits of our finding. Our work has major theoretical potentials and innovative practical applications.

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