Image distributing system
US6727940B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1999 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Jul 29, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/695
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention allows a user to simultaneously control geometric parameters for a camera and suppresses a deterioration in the image quality of distributed video images while keeping the cost low. The invention includes an image sensing area calculation unit for calculating a minimum image sensing area including required areas from clients, a required video image forming unit for forming required video images by extracting video images of the respective required areas from a video image of the image sensing area which is sensed, and a video image transmission I/F for distributing the formed required video images to the respective clients. Only the minimum area including the respective required areas is sensed, and video images of the respective required areas are cut from the video image and distributed to the respective users, thereby allowing a plurality of users to simultaneously control the camera and obtain video images at desired viewpoints and view angles. In addition, since only one camera is used, the required cost can be kept low, and the electronic zoom magnifications of video images to be distributed can be suppressed low, thereby minimizing a deterioration in the image…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.