{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9672422","patent":{"patent_number":"US-9672422","title":"Pupil detection device and pupil detection method","assignee":null,"inventors":[],"filing_date":"2015-07-22T00:00:00.000Z","publication_date":"2017-06-06T00:00:00.000Z","cpc_codes":["A61B","A61B","G06V","G06V","H04N","H04N","A61B","A61B","G06T","G06T","G06T"],"num_claims":6,"abstract":"A pupil detection device includes an identification unit that identifies a pupil region from a captured image of an eye, an extractor that extracts a contour of the pupil region identified by the identification unit, a selector that selects a plurality of points on the contour of the pupil region extracted by the extractor, a center calculator that calculates a center of a circle passing through the plurality of points selected by the selector, and a pupil detector that detects a center of the pupil region from the center of a circle calculated by the center calculator."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Pupil detection device and pupil detection method","description":"A pupil detection device includes an identification unit that identifies a pupil region from a captured image of an eye, an extractor that extracts a contour of the pupil region identified by the iden","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9672422","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-9672422","citation_suggestion":"Patentable. \"Pupil detection device and pupil detection method\" (US-9672422). https://patentable.app/patents/US-9672422","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9672422","json":"https://patentable.app/api/llm-context/US-9672422","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:40:18.278Z"}