A heuristic technique for CTIS image reconstruction
| Autor: | Michael D. Vose, Mitchel D. Horton |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Point spread function
Algebraic Reconstruction Technique Iterative method Computer science Materials Science (miscellaneous) Gaussian ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Imaging spectrometer Computed tomography Iterative reconstruction Industrial and Manufacturing Engineering symbols.namesake Optics Digital image processing medicine Business and International Management medicine.diagnostic_test business.industry Hyperspectral imaging Transfer matrix Imaging spectroscopy Noise symbols Deconvolution business Algorithm |
| Zdroj: | Applied optics. 46(26) |
| ISSN: | 1559-128X |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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