System and method for tracking objects
US8565481B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 26, 2011 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Feb 23, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/653
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments of a system and method for tracking objects are described herein. Aspects of this disclosure efficiently update object “belief” data by creating a bitmap representation of object locations and velocities. The bitmap provides a three-dimensional representation of the object as viewed by one or more sensors. The bitmap representations are blended with sensor data over time to determine a current object belief state which can accurately account for asynchronous sensor data. Peaks in the belief data, which may be represented by pixels with an intensity value above a threshold value, are identified as likely objects. Additional sensor data is used to detect longitudinal velocities located at one or more of the peaks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.