{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11238585","patent":{"patent_number":"US-11238585","title":"Method and apparatus for spectral computed tomography (CT) with multi-material decomposition into three or more material components","assignee":null,"inventors":[],"filing_date":"2020-04-03T00:00:00.000Z","publication_date":"2022-02-01T00:00:00.000Z","cpc_codes":["A61B","A61B","A61B","A61B","G06T","G06V","A61B","G06T","G06V"],"num_claims":20,"abstract":"A method and apparatus uses multi-material decomposition of three or more material components to generate material-component images from spectral images reconstructed from spectral computed tomography data. In three-component material decomposition e.g., the Mendonça method is used for multi-material decomposition when the attenuation values satisfy an assumed volume fraction condition (i.e., for a given voxel, the attenuation values are within a triangle having vertices given by unit volume fractions of three respective material components). However, when the volume fraction condition fails (e.g., the attenuation values are outside the triangle), either a shortest-Hausdorff-distance method or a closest-edge method is used for multi-material decomposition. For example, the attenuation values of the voxel are projected onto a lower-dimensional space (e.g., the space of a closest edge) and decomposed into a pair/single material component(s) of the lower-dimensional space."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for spectral computed tomography (CT) with multi-material decomposition into three or more material components","description":"A method and apparatus uses multi-material decomposition of three or more material components to generate material-component images from spectral images reconstructed from spectral computed tomography","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11238585","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11238585","citation_suggestion":"Patentable. \"Method and apparatus for spectral computed tomography (CT) with multi-material decomposition into three or more material components\" (US-11238585). https://patentable.app/patents/US-11238585","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11238585","json":"https://patentable.app/api/llm-context/US-11238585","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T18:23:54.365Z"}