Sky detection system used in image extraction device and method using sky detection system
US8488878B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2010 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | Nov 16, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/38
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a sky detection system that detects sky in an image collection device. The system includes an image collection unit that collects information of a color image; a color-feature extraction unit that extracts a color feature of each pixel from the collected image; a distance measurement unit that measures a distance between each pixel of the collected image and a lens; a first classification unit that classifies each pixel of the collected image as either a sky pixel or a non-sky pixel based on the color feature; and a second classification unit that further classifies each pixel of the collected image as either the sky pixel or the non-sky pixel based on the distance and a result of the first classification unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.