False alarm rejection for boat detection candidates
US9196044B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 26, 2014 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | May 24, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30252
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for rejecting false alarms in preliminary detected ship candidates includes: receiving an image including the plurality of preliminary ship candidates; computing intensity and gradient statistics from an image background around each of the preliminary ship candidates; determining a set of thresholds from the computed intensity and gradient statistics; determining an outline and an orientation for each of the preliminary ship candidates, using the computed intensity and gradient statistics; extracting a plurality of features from each of the outlines and orientations of the preliminary ship candidates, wherein the plurality of features includes intensity-based features, gradient-based features, texture-based features and shape-based features; and rejecting false alarms in the plurality of preliminary detected ship candidates using the extracted features and the determined thresholds and statistical distance classifiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.