| 摘要 |
A video image retention and data information security system operates in conjunction with a group of transaction devices, such as receipt printers at bank teller stations. A video camera is provided at each teller station and a group of lobby video cameras are provided for security surveillance. The video cameras are connected to the video inputs of a selector which connects any one of the inputs to a video output. The video output is provided to a video board that digitizes a received image upon command. A controller, such as a personal computer, receives through a video and data channel selector, a set of information from the transaction machine, such as the data related to a bank checking transaction. The controller causes the video camera associated with the teller station to be connected to the video board which is then activated to capture an image of the customer who conducted the transaction that resulted in the generation of the receipt printer transaction. The data associated with the transaction together with the image are stored on a disk drive. A data file is stored which includes multiple data entries relating to the image file, and the image file can be retrieved by any data in the data file. Surveillance cameras operate to take sequential images wherein a comparison of pixel values is made to determine whether a substantial change has been made from one image to the next. If a substantial number of the pixels differ from one image to the next, the latter image is stored for security review. Both the images generated by the teller cameras and the security images can be remotely accessed via telephone lines.
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