Reconstructing Images from Projections Using the Maximum-Entropy Method. Numerical Simulations of Low-Aspect Astrotomography

Simple item page
dc.creatorBajkova, Anisa T.
dc.date2007-10-14
dc.date.accessioned2026-07-07T11:38:05Z
dc.date.available2026-07-07T11:38:05Z
dc.descriptionThe reconstruction of images from a small number of projections using the maximum-entropy method (MEM) with the Shannon entropy is considered. MEM provides higher-quality image reconstruction for sources with extended components than the Hogbom CLEAN method, which is also used in low-aspect astrotomography. The quality of image reconstruction for sources with mixed structure containing bright, compact features embedded in a comparatively weak, extended base can be further improved using a difference-mapping method, which requires a generalization of MEM for the reconstruction of sign-variable functions.We draw conclusions based on the results of numerical simulations for a number of model radio sources with various morphologies.
dc.description11 pages, 9 figures
dc.identifierhttps://arxiv.org/abs/0710.2664
dc.identifierhttp://arxiv.org/abs/0710.2664
dc.identifierAstron.Rep.51:891-902,2007
dc.identifierdoi:10.1134/S1063772907110030
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199438
dc.subjectAstrophysics
dc.titleReconstructing Images from Projections Using the Maximum-Entropy Method. Numerical Simulations of Low-Aspect Astrotomography
dc.typetext

Files

Collections

arXiv