Image sensing control method and apparatus, image transmission control method, apparatus, and system, and storage means storing program that implements the method
US6646677B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1997 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Oct 21, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/181
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention relates to an image sensing control method and apparatus, and an image transmission control method, apparatus, and system, in which a camera such as a video camera is connected, the operation of the camera is controlled in accordance with a control command sent from a client via a network, and an image signal sensed by the camera is transmitted to the client via the network. Upon reception of a control command of the pan and tilt angles, zoom value, or the like of the camera from the client, the position control of the camera is done in accordance with the command, and transmission of the image signal sensed by the camera is suspended until the instructed operation is complete. Alternatively, upon reception of such control command, the image signal sensed by the camera is compressed at a high compression ratio, and the compressed image signal is transmitted. On the client device, received image signal is directly displayed without buffering during the control operation, thus allowing real-time image display during the position control of the camera.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.