Video camera with extraction unit for extracting specific portion of video signal
US5347371A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1992 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Sep 3, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/88
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video camera for enabling improvement in automatic functions such as automatic white balancing and automatic focusing while controlling picture quality of a video image including a specific object of the video image and/or background thereof. The video camera includes an image pickup device and a signal processing circuit responsive thereto for processing the image picked up by the image pickup device and providing a video signal as an output. An extraction unit is provided for extracting a signal representative of a specific portion of the video signal of the signal processing circuit, and a control unit responsive to the signal extracted by the extraction unit effects control of at least one of the signal processing circuit and at least one input control parameter of the video camera in accordance therewith, thereby providing improvement in the picture quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.