Anomalous pixel detection
US9756264B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2015 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Nov 4, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/55
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Various techniques are provided to identify anomalous pixels in images captured by imaging devices. In one example, an infrared image frame is received. The infrared image frame is captured by a plurality of infrared sensors based on infrared radiation passed through an optical element. A pixel of the infrared image frame is selected. A plurality of neighborhood pixels of the infrared image frame are selected. Values of the selected pixel and the neighborhood pixels are processed to determine whether the value of the selected pixel exhibits a disparity in relation to the neighborhood pixels that exceeds a maximum disparity associated with a configuration of the optical element and the infrared sensors. The selected pixel is selectively designated as an anomalous pixel based on the processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.