A heuristic technique for CTIS image reconstruction

A heuristic technique for CTIS image reconstruction

An iterative method is presented for computed tomography imaging spectrometer (CTIS) image reconstruction in the presence of both photon noise in the image and postdetection Gaussian system noise. The new algorithm, which assumes the transfer matrix of the system has a particular structure, is evalu...

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Veröffentlicht in:Applied Optics 2007-09, Vol.46 (26), p.6498-6503
Hauptverfasser: Vose, Michael D, Horton, Mitchel D
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Horton, Mitchel D
description An iterative method is presented for computed tomography imaging spectrometer (CTIS) image reconstruction in the presence of both photon noise in the image and postdetection Gaussian system noise. The new algorithm, which assumes the transfer matrix of the system has a particular structure, is evaluated experimentally with the result that it is significantly better, for larger problems, than both the multiplicative algebraic reconstruction technique (MART) and the mixed-expectation image-reconstruction technique (MERT) with respect to accuracy and computation time.
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title A heuristic technique for CTIS image reconstruction
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