{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9651506","patent":{"patent_number":"US-9651506","title":"Spectral response effects (SRE) compensation method for photon counting detectors (PCDs)","assignee":null,"inventors":[],"filing_date":"2014-01-31T00:00:00.000Z","publication_date":"2017-05-16T00:00:00.000Z","cpc_codes":["A61B","A61B","A61B","A61B","A61B","A61B","A61B","G01N","G01N","G16H","A61B","A61B","A61B","A61B","A61B"],"num_claims":20,"abstract":"An embodiment in accordance with the present invention provides a new SR compensation (SRC) method, using a more efficient conjugate gradient method. In this method, the first and second derivatives are directly calculated analytically. The proposed SRC uses a sinogram restoration approach, integrates the SRF as a part of a forward imaging model, and compensates for the effect of the SR by maximizing the Poisson log-likelihood of measurements. The algorithm can be evaluated using as a simulated fan-beam x-ray CT scanner."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Spectral response effects (SRE) compensation method for photon counting detectors (PCDs)","description":"An embodiment in accordance with the present invention provides a new SR compensation (SRC) method, using a more efficient conjugate gradient method. In this method, the first and second derivatives a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9651506","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-9651506","citation_suggestion":"Patentable. \"Spectral response effects (SRE) compensation method for photon counting detectors (PCDs)\" (US-9651506). https://patentable.app/patents/US-9651506","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9651506","json":"https://patentable.app/api/llm-context/US-9651506","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T18:30:44.150Z"}