Methods for processing images to detect objects below the surface of the water
US7869620B2 · kind B2 · utility
2Cited by
2References
12Claims
0Family size
Inventors
Key dates
| Filing date | Aug 23, 2007 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Nov 10, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/52
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention is a processing method to increase the detection of objects below the surface of the water comprising the steps of: acquiring image data in separate spectral regions simultaneously and converting the image data into intensity value arrays for each spectral region, transforming the intensity value arrays into two-dimensional discrete wavelet transform arrays for each spectral region, and subtracting in a pair wise manner the two-dimensional discrete wavelet transform arrays thereby obtaining images showing an object below the surface of the water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.