Method for calibrating a digital camera to a PC monitor to enhance picture quality of a picture captured by the digital camera and displayed on the PC monitor
US5918192A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 23, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Jan 23, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N17/002
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Images captured by a digital camera can be enhanced to account for distortions due to the camera itself and due to the monitor on which images will be displayed. First, a camera basis set, which is the response of the camera to a reference monitor when pixels are illuminated thereon, is constructed. The camera basis set will not change for a given camera. For a given end-user monitor, calibration software likewise constructs a display basis set. The display basis set will not change for a given monitor. Capture images are thereafter enhanced by first curve fitting the captured image to the camera basis set, which results in a coefficient space. The coefficient space is applied to the display basis set to construct the enhanced image which is output to the monitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.