{"number":"US12702293B2","kindCode":"B2","documentType":"grant","title":{"original":"Implicit gaze and focus distance calibration","english":"Implicit gaze and focus distance calibration"},"abstract":{"original":"Images of a user's face are captured at a plurality of time instants. Tracking parameters are determined, tracking parameters include: a pose of the user's head, positions of eyeballs, and at least one of: relative positions of irises with respect to boundaries of the eyeballs, relative positions of irises with respect to corners, shapes of the user's eyes. Uncalibrated gaze vectors of the user's eyes are estimated. A set of uncalibrated gaze vectors is generated. The uncalibrated gaze vectors of the set are stored along with corresponding time instants and tracking parameters.…","english":"Images of a user's face are captured at a plurality of time instants. Tracking parameters are determined, tracking parameters include: a pose of the user's head, positions of eyeballs, and at least one of: relative positions of irises with respect to boundaries of the eyeballs, relative positions of irises with respect to corners, shapes of the user's eyes. Uncalibrated gaze vectors of the user's eyes are estimated. A set of uncalibrated gaze vectors is generated. The uncalibrated gaze vectors of the set are stored along with corresponding time instants and tracking parameters.…"},"applicants":["Distance Technologies Oy"],"inventors":["Thomas Carlsson","Mikko Strandborg"],"filingDate":"2024-06-06","publicationDate":"2026-08-11","grantDate":"2026-08-11","verifiedWithOffice":true,"pdfUrl":"https://downloadpatent.com/pdf/US12702293B2.pdf","pages":{"en":"https://downloadpatent.com/patent/US12702293B2","zh-Hant":"https://downloadpatent.com/zh-Hant/patent/US12702293B2","ja":"https://downloadpatent.com/ja/patent/US12702293B2"}}