Marine intrusion detection system and method
US10282622B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2016 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Dec 9, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/1961
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system detects a candidate for an object which intrudes based on images of a visible light camera and a far-infrared camera that monitor the sea, further derives a size, a velocity, an intrusion direction, and linearity, and identifies the object to some extent. Also, the system distinguishes between a boat, a human, and a floating matter based on the luminances or the like in a far-infrared image. In addition, the system observes the periodicity of normal waves on the sea surface at a location without any object by performing the Fourier transform on the image. The accuracy of identification of an object is improved based on the correlation between the motion of waves in a normal state and the motion of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.