Monitor system of vehicle outside and the method thereof
US6834254B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 14, 2002 |
| Grant date | Dec 21, 2004 |
| Priority date | — |
| Expiry date | Feb 4, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/932
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
When a vehicle travels on an approximately straight lane, a distance data diagnosing section determines a distance measuring capability in a survey area in which the field of view of a laser radar overlaps that of an image as to a three-dimensional object. Then, the distance data diagnosing section determines whether or not the image-measured (laser-measured) distance data of the three-dimensional object exists, and when the image-measured (laser-measured) distance data thereof does not exist, the three-dimensional object is counted to the number of three-dimensional objects without image (without laser radar) and calculates three-dimensional object non-detecting ratios of image (laser radar) from the total number of three-dimensional objects to be determined and the number of three-dimensional objects without image (without laser radar).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.