Driving assistance system
US7519459B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 8, 2005 |
| Grant date | Apr 14, 2009 |
| Priority date | — |
| Expiry date | Jun 8, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2300/8093
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A driver's gaze distribution is detected. Based on the detected distribution, an image corresponding to a driver's visual-field is extracted from images photographed by a front monitor camera and is accumulated. A first driver's gaze probability distribution necessary for steering operation is computed based on the accumulated images, and a second driver's gaze probability distribution that is expected is computed based on visual characteristics within the images. An ideal gaze probability distribution is obtained by adding up the first and the second probability distributions. Presence of a risk is determined when the difference between the driver's gaze and the ideal gaze probability distribution becomes a given threshold. A windshield display or a speaker outputs the determined result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.