{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11462027","patent":{"patent_number":"US-11462027","title":"Eye opening degree calculation device","assignee":null,"inventors":[],"filing_date":"2021-03-22T00:00:00.000Z","publication_date":"2022-10-04T00:00:00.000Z","cpc_codes":["G06V","A61B","B60W","G06V","G06V","B60W","B60W"],"num_claims":6,"abstract":"An eye opening degree calculation device includes: a processor configured to: calculate a degree of eye opening of a crew, based on an image in which a face of the crew appears; calculate a face direction angle of the crew with respect to a predetermined reference direction, based on the image; calculate a line-of-sight angle of the crew with respect to the predetermined reference direction, based on the image; correct the degree of eye opening or a threshold value which will be compared with the degree of eye opening, when a difference between the face direction angle and the line-of-sight angle is equal to or greater than a predetermined value; and determine an eye opening state of the crew, based on the corrected degree of eye opening or a comparison result of the degree of eye opening with the corrected threshold value."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Eye opening degree calculation device","description":"An eye opening degree calculation device includes: a processor configured to: calculate a degree of eye opening of a crew, based on an image in which a face of the crew appears; calculate a face direc","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11462027","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-11462027","citation_suggestion":"Patentable. \"Eye opening degree calculation device\" (US-11462027). https://patentable.app/patents/US-11462027","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11462027","json":"https://patentable.app/api/llm-context/US-11462027","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T14:10:32.545Z"}