{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9727783","patent":{"patent_number":"US-9727783","title":"Extended depth-of-field biometric system","assignee":null,"inventors":[],"filing_date":"2016-10-12T00:00:00.000Z","publication_date":"2017-08-08T00:00:00.000Z","cpc_codes":["G06V","G06T","G06V","G06V","H04N","H04N","H04N","G06T","G06T"],"num_claims":34,"abstract":"An iris recognition system may include an optical system having an intentional amount of spherical aberration that results in an extended depth of field. A raw image of an iris captured by the optical system may be normalized. In some embodiments, the normalized raw image may be processed to enhance the MTF of the normalized iris image. An iris code may be generated from the normalized raw image or the enhanced normalized raw image. The iris code may be compared to known iris codes to determine if there is a match."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Extended depth-of-field biometric system","description":"An iris recognition system may include an optical system having an intentional amount of spherical aberration that results in an extended depth of field. A raw image of an iris captured by the optical","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9727783","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-9727783","citation_suggestion":"Patentable. \"Extended depth-of-field biometric system\" (US-9727783). https://patentable.app/patents/US-9727783","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9727783","json":"https://patentable.app/api/llm-context/US-9727783","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:56:28.513Z"}