{"paper":{"title":"MARS-MD: rejection based image domain material decomposition","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.med-ph","authors_text":"A. Atharifard, A. Chernoglazov, A.P.H. Butler, B. Brandwacht, C.J. Bateman, D. Knight, D. Rundle, D. Smithies, J. Bennett, J. Healy, J. Mc Mahon, K. Rajendran, L. Vanden Broeke, M. Anjomrouz, M. Moghiseh, M. Ramyar, M. Shamshad, M. Walsh, N. de Ruiter, N.G. Anderson, P.F. Renaud, P.H. Butler, R. Aamir, R. Doesburg, R. Panta, S. Bheesette, S.P. Gieseg, S.T. Bell, T. Kirkbride, T. Woodfield, V.B.H. Mandalika","submitted_at":"2018-02-15T00:05:50Z","abstract_excerpt":"This paper outlines image domain material decomposition algorithms that have been routinely used in MARS spectral CT systems. These algorithms (known collectively as MARS-MD) are based on a pragmatic heuristic for solving the under-determined problem where there are more materials than energy bins. This heuristic contains three parts: (1) splitting the problem into a number of possible sub-problems, each containing fewer materials; (2) solving each sub-problem; and (3) applying rejection criteria to eliminate all but one sub-problem's solution. An advantage of this process is that different co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.05366","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}