{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9813597","patent":{"patent_number":"US-9813597","title":"Gaze tracker and method for tracking gaze thereof","assignee":null,"inventors":[],"filing_date":"2015-11-18T00:00:00.000Z","publication_date":"2017-11-07T00:00:00.000Z","cpc_codes":["H04N","A61B","A61B","A61B","A61B","A61B","A61B","G06V","H04N","H04N","G06V"],"num_claims":14,"abstract":"The present disclosure provides a gaze tracker and a gaze tracking method. The gaze tracker includes: an image acquirer to acquire eye images of a user using two or more cameras and two or more lightings; and a gaze calculator which detects a lighting reflection point from each eye image to extract a cornea central point, detects a pupil central point from each eye image, and calculates a gaze vector. In particular, when lighting reflection points are detected from each eye image, the gaze calculator calculates vectors for connection between each lighting and a corresponding lighting reflection point and detects an intersection point between the calculated vectors. When only one lighting reflection point is detected, the gaze calculator extracts the cornea central point using distance information between a pre-stored lighting reflection point and the cornea central point and the one lighting reflection point."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Gaze tracker and method for tracking gaze thereof","description":"The present disclosure provides a gaze tracker and a gaze tracking method. The gaze tracker includes: an image acquirer to acquire eye images of a user using two or more cameras and two or more lighti","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9813597","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-9813597","citation_suggestion":"Patentable. \"Gaze tracker and method for tracking gaze thereof\" (US-9813597). https://patentable.app/patents/US-9813597","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9813597","json":"https://patentable.app/api/llm-context/US-9813597","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:48:24.053Z"}