{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9799126","patent":{"patent_number":"US-9799126","title":"Apparatus and method for robust non-local means filtering of tomographic images","assignee":null,"inventors":[],"filing_date":"2015-10-02T00:00:00.000Z","publication_date":"2017-10-24T00:00:00.000Z","cpc_codes":["G06T","G06F","G06T","G06T","G06T","G06T","G06T","G06T"],"num_claims":20,"abstract":"An apparatus for performing a non-local means (NLM) filter is described. The pixel of the NLM-filtered image are weighted averages of pixels from a noisy image, where the weights are a measure of the similarity between patches of the noisy image. The similarity weights can be calculated using a Kullback-Leibler or a Euclidean distance measure. The similarity weights can be based on filtered patches of the noisy image. The similarity weights can be based on a similarity measure between patches of an anatomical image corresponding to the noisy image. The similarity weights can be calculated using a time series of noisy images to increase the statistical sample size of the patches. The similarity weights can be calculated using a weighted sum of channel similarity weights calculated between patches of noisy image that have been band-pass filtered. The NLM-filtered image can also be blended with a non-NLM-filtered image."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Apparatus and method for robust non-local means filtering of tomographic images","description":"An apparatus for performing a non-local means (NLM) filter is described. The pixel of the NLM-filtered image are weighted averages of pixels from a noisy image, where the weights are a measure of the ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9799126","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-9799126","citation_suggestion":"Patentable. \"Apparatus and method for robust non-local means filtering of tomographic images\" (US-9799126). https://patentable.app/patents/US-9799126","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9799126","json":"https://patentable.app/api/llm-context/US-9799126","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:18:08.031Z"}