Fast target extraction from thermal imagery
US8611586B1 · kind B1 · utility
11Cited by
1References
16Claims
0Family size
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Key dates
| Filing date | Nov 19, 2010 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Feb 10, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/255
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for extracting a target from a series of images includes the steps of: (a) estimating an ambient temperature value of pixels in the series of images; (b) finding a band of pixel values having temperature values above the ambient temperature value, the band of pixel values forming a histogram; and (c) differentiating the histogram to estimate a threshold. Also included are steps (d) extracting the target having pixel values above the threshold; and (e) colorizing the target for display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.