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.
© 2007 Optical Society of America
Original Manuscript: December 4, 2006
Revised Manuscript: July 17, 2007
Manuscript Accepted: July 24, 2007
Published: September 5, 2007
Michael D. Vose and Mitchel D. Horton, "A heuristic technique for CTIS image reconstruction," Appl. Opt. 46, 6498-6503 (2007)