Noise reduction method for imaging devices
US7652250B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jun 26, 2006 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Dec 28, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/671
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for reducing the noise equivalent temperature difference associated with imaging devices having a detection array including micro-cantilevers and a charged-coupled device or a complementary metal oxide semiconductor imager is presented. The method includes calculating horizontal and vertical pixel ratios based upon the number of receptor pixels and micro-cantilever pixels, defining composite pseudo-pixels comprised of at least two receptor pixels, capturing at least one frame of an image, calculating the composite intensity for each composite pseudo-pixel based on the intensities of the receptor pixels therein, and reconstructing each frame so that receptor pixels within each composite pseudo-pixel are displayed with the appropriate composite intensity. While the present method lowers pixel resolution, the composite pseudo-pixels maintain image resolution within the reconstructed image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.