Distance correcting apparatus of surroundings monitoring system and vanishing point correcting apparatus thereof
US6985619B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2000 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Oct 16, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/0096
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A distance correcting apparatus of a surroundings monitoring system includes a stereo imaging means for stereoscopically taking a pair of images of a frontal scenery, a parallax calculating means for calculating a parallax based on the pair of images, a distance calculating means for calculating a distance to an object based on the parallax and a parameter for correcting distance, an approximation line calculating means for calculating a plurality of approximation lines extending in the distance direction in parallel with each other based on the images, a vanishing point calculating means for calculating a vanishing point of the images from a point of intersection of the approximation lines and a parameter correcting means for correcting the parameter based on the calculated vanishing point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.