发明名称 |
Surveillance and remote surveillance camera, apparatus and system |
摘要 |
Video data indicating a scene of a surveillance area is produced by a surveillance camera and is compressed to high-compressed video data and low-compressed video data. The low-compressed video data having a large data volume is stored in a storing unit, and the high-compressed video data having a small data volume is transmitted to a surveillance apparatus through a communication line at high speed. Also, in cases where the occurrence of an unusual condition is detected by a detector, an unusual condition detecting signal is transmitted to the surveillance apparatus. In the surveillance apparatus, the high-compressed video data is expanded, and a low-definition scene image of the surveillance area is displayed as a real time image. When the unusual condition detecting signal is received, the signal is displayed, and a watchman can notice the occurrence of the unusual condition. Because the watchman desires to view a scene image at high definition, the low-compressed video data stored in the storing unit is transmitted to the surveillance apparatus in response to a watchman's request, and a high-definition scene image of the surveillance area is displayed as a past-time image. Therefore, the watchman can precisely observe the unusual condition of the surveillance area. <IMAGE> |
申请公布号 |
EP0979009(A3) |
申请公布日期 |
2001.08.29 |
申请号 |
EP19990304628 |
申请日期 |
1999.06.15 |
申请人 |
MATSUSHITA ELECTRONICS CORPORATION |
发明人 |
ITO, FUJIO;TAKAHASHI, KENJI;MIYABE, HIROSHI;TAGAWA, HARUO |
分类号 |
H04N5/225;G06T9/00;H04N5/00;H04N5/232;H04N7/18 |
主分类号 |
H04N5/225 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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