Method and system for tracking people in indoor environments using a visible light camera and a low-frame-rate infrared sensor
US9245196B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2014 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Jun 12, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30196
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system tracks objects in an environment by acquiring a first sequence of images of the environment with a visible-light camera having a first frame rate and a second sequence of images with a thermal infrared sensor having a second frame rate. The second frame rate is substantially lower than the first frame rate. The objects are tracked in the first sequence of images to obtain tracks. Warm regions in the second sequence of images are detected to obtain detections. The tracks and the detections are aligned spatially and temporally, and verified to determine whether the tracks and detections coincide after the aligning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.