Gaze target estimation device, gaze target estimation method, program, and recording medium
The visual recognition target estimation device enhances driver line-of-sight estimation by using offset angle calculations and probability distributions to overcome camera installation constraints, achieving accurate target estimation.
WO2026105420A1PCT designated stage Publication Date: 2026-05-21PIONEER IP
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Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- PIONEER IP
- Filing Date
- 2025-09-03
- Publication Date
- 2026-05-21
AI Technical Summary
Technical Problem
Existing vehicle driver line-of-sight estimation systems face accuracy limitations due to camera installation constraints, leading to difficulties in geometrically estimating visual recognition targets accurately.
Method used
A visual recognition target estimation device that utilizes a camera to acquire face orientation and line-of-sight angles, calculates offset angles, and determines sighting destinations using probability distributions based on face and gaze angles, even with limited camera accuracy.
Benefits of technology
Enables high-accuracy estimation of visual recognition targets by combining face orientation and line-of-sight angles, improving estimation robustness and accuracy despite camera limitations.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure JP2025031082_21052026_PF_FP_ABST
Abstract
A gaze target estimation device for estimating a gaze target of a driver of a vehicle on the basis of face image data obtained by photographing the face of the driver with a camera, the gaze target estimation device comprising: an angle acquisition unit for acquiring, on the basis of the face image data of the driver, a face orientation angle of the driver with reference to a face orientation when the driver faces the camera or a line-of-sight angle with reference to a line of sight when the driver faces the camera; an offset calculation unit for calculating, as an offset angle on the basis of the face orientation angle or the line-of-sight angle, an angle formed by the face orientation when the driver faces the camera and the front direction of the driver's seat or an angle formed by the line-of-sight direction when the driver faces the camera and the front direction of the driver's seat; and a determiner generation unit for generating, on the basis of the offset angle, a determiner to be used for determining the gaze target of the driver on the basis of the face orientation angle or the line-of-sight angle.
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