Method and system for locating a plurality of targets#
US10089749B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 28, 2016 |
| Grant date | Oct 2, 2018 |
| Priority date | — |
| Expiry date | Dec 19, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30204
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system for locating a plurality of targets are provided, wherein all targets to be located move within a spatial area. The method comprises: providing an infrared light source on each of the targets to be located; according to a preset sampling frequency, controlling the infrared light source on each of the targets to be located to be turned on and off sequentially; according to the preset sampling frequency, obtaining infrared gray scale images of the space where the targets to be located are located; and locating one target to be located in each of the obtained infrared gray scale images. By the infrared light source locating, ambient interference is highly avoided, and the accuracy of the locating is improved. By controlling the infrared light sources to be turned on and off sequentially, there is only one infrared light source being turned on in each of the obtained infrared gray scale images, by which the targets to be located are easily distinguished, and the image processing on the basis of gray scale can reduce the data volume to be transmitted and increase the processing speed to a large extent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.