Efficient binary tomographic reconstruction

Stephane Roux; Hugo Leclerc; François Hild

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arXiv · 1309.0985

Efficient binary tomographic reconstruction

Stephane Roux·Hugo Leclerc·François Hild

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Abstract

Tomographic reconstruction of a binary image from few projections is considered. A novel {\em heuristic} algorithm is proposed, the central element of which is a nonlinear transformation $ψ(p)=\log(p/(1-p))$ of the probability $p$ that a pixel of the sought image be 1-valued. It consists of backprojections based on $ψ(p)$ and iterative corrections. Application of this algorithm to a series of artificial test cases leads to exact binary reconstructions, (i.e recovery of the binary image for each single pixel) from the knowledge of projection data over a few directions. Images up to $10^6$ pixels are reconstructed in a few seconds. A series of test cases is performed for comparison with previous methods, showing a better efficiency and reduced computation times.

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Stephane Roux, Hugo Leclerc, François Hild. 2013-09-04. Efficient binary tomographic reconstruction. https://arxiv.org/abs/1309.0985

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