{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11481937","patent":{"patent_number":"US-11481937","title":"Positron emission tomography image reconstruction method","assignee":null,"inventors":[],"filing_date":"2020-09-30T00:00:00.000Z","publication_date":"2022-10-25T00:00:00.000Z","cpc_codes":["A61B","G06T","A61B","A61B","G06N","G06N","G06N","G06N","G06T","G06T","G06T","G06T","G06T","G06T","G06T","G06T","G06T"],"num_claims":8,"abstract":"A PET image reconstruction method, including: 1) injecting a PET radioactive tracer into a biological tissue, scanning by a PET device, and detecting and counting coincidence photons to obtain an original protection data matrix; 2) establishing a measurement equation model; 3) splitting the reconstruction problem into a first sub-problem and a second sub-problem; 4) solving the first sub-problem by a filtered back-projection layer, solving the second sub-problem by an improved denoising convolutional neural network, where the filtered back-projection layer and the improved denoising convolutional neural network are connected in series to form a filtered back-projection network (FBP-Net); 5) inputting original projection data into the FBP-Net, and using an image as a tag to adjust parameters of the FBP-Net to reduce an error between an output of the FBP-Net and the tag; and 6) inputting projection data to be reconstructed into the trained FBP-Net to obtain a desired reconstructed image."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Positron emission tomography image reconstruction method","description":"A PET image reconstruction method, including: 1) injecting a PET radioactive tracer into a biological tissue, scanning by a PET device, and detecting and counting coincidence photons to obtain an orig","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11481937","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-11481937","citation_suggestion":"Patentable. \"Positron emission tomography image reconstruction method\" (US-11481937). https://patentable.app/patents/US-11481937","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11481937","json":"https://patentable.app/api/llm-context/US-11481937","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T07:59:54.929Z"}