Image processing system with arbitrary and adjacent picture element signal load factoring
US5119180A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1989 |
| Grant date | Jun 2, 1992 |
| Priority date | — |
| Expiry date | Dec 14, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/136
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing system which generates a luminance signal and a color difference signal based on chrominance signals read from an image pick-up device. The image pick-up device includes a green striped and red/blue perfectly checkered filter arrangememt, or a similar filter having an arrangement of complementary colors. In the image processing system, a luminance signal and a color difference signal corresponding to an arbitrary picture element are formed by performing arithmetic operations in which a corresponding signal generated from the arbitrary picture element, and a plurality of signals generated from adjacent picture elements with respect to the arbitrary element, are added together after the generated signals are multiplied with respective suitable load factors. The image processing system provides improved resolution and helps prevent the occurrence of spurious colors on a processed image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.