Human body standard calibration apparatus and method for calibrating focal plane detector
US7135694B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 31, 2003 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Sep 1, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/67
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A focal plane detector adapted to be calibrated using an image of part of the human body. Further, a method of calibrating a focal plane detector having a plurality of detector elements, comprising the steps of presenting a first and a second image to the focal plane detector array, measuring the output from each detector during each first and second image, analysing the outputs and compensating for errors in the output of each detector element such that the outputs from the detector elements are substantially equal when illuminated with electromagnetic radiation of a given intensity. The first and second images have substantially no discernible features therein, and one of the first and second images comprises an image of part of the human body. The apparatus and method are particularly applicable to focal plane detectors sensitive to infrared radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.