Wide dynamic range camera
US5144442A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1991 |
| Grant date | Sep 1, 1992 |
| Priority date | — |
| Expiry date | Nov 21, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention is directed to a wide dynamic range video imaging apparatus. More specifically, the invention is directed to a video imaging apparatus comprising a) a sensor for providing a plurality of video images of a scene at different exposure levels and b) a processor for processing the plurality of video images to produce a combined video image including image information from the plurality of video images by applying neighborhood transforms to the plurality of video images, the processor comprising a selector for locally selecting the operating levels of the dynamic range of the combined video image within the dynamic range of the sensor, whereby the resulting video image includes image information from the plurality of video images with enhanced information content at local areas therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.