{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9773170","patent":{"patent_number":"US-9773170","title":"Pupil detection","assignee":null,"inventors":[],"filing_date":"2016-05-18T00:00:00.000Z","publication_date":"2017-09-26T00:00:00.000Z","cpc_codes":["G06V","G06F","G06T","G06T","G06V","G06V","G06T","G06T"],"num_claims":20,"abstract":"Embodiments that relate to determining an estimated pupil region of an eye are disclosed. In one embodiment a method includes receiving an image of an eye, with the image comprising a plurality of pixels. A rough pupil region is generated using at least a subset of the plurality of pixels. A plurality of pupil boundary point candidates are extracted from the rough pupil region, with each of the candidates weighted based on color values of at least two neighbor pixels. A parametric curve may be fitted to the weighted pupil boundary point candidates to determine the estimated pupil region of the eye of the user."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Pupil detection","description":"Embodiments that relate to determining an estimated pupil region of an eye are disclosed. In one embodiment a method includes receiving an image of an eye, with the image comprising a plurality of pix","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9773170","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-9773170","citation_suggestion":"Patentable. \"Pupil detection\" (US-9773170). https://patentable.app/patents/US-9773170","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9773170","json":"https://patentable.app/api/llm-context/US-9773170","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:37:11.278Z"}