System and method for detection of free parking space for a vehicle
US11030469B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2019 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Jan 17, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30264
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A detection system implemented in a vehicle to detect free parking space is disclosed. The system comprises an input unit for imaging perspective view around the vehicle and a processing unit to receive a sequence of images from the at least one image sensor and detect at least one polygon pertaining to a parking slot in at least one image of the sequence of images, transform the at least one image into a bird's-eye-view image using a homography matrix, detect at least one quadrilateral pertaining to a parking slot, transform the bird's-eye-view image comprising the at least one quadrilateral, into corresponding image pertaining to perspective view around the vehicle using an inverse homography matrix, to analyse real world co-ordinates of the parking slot, and determine type of the parking slot by computing real world dimensions based on analysis of the real world co-ordinates of the parking slot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.