| 摘要 |
A monitoring system for use with a self-service terminal (25) having a user interface is described. The system comprises: image capture means (30) for capturing images of at least part of the user interface; image storage means (34) for storing at least one image captured by the image capture means (30); image processing means (32) for comparing the at least one stored image with a subsequently captured image of the part of the user interface so as to detect the addition of an alien device to the part of the user interface; and alarm means (38) for generating an alarm signal if the image processing means (32) detects the addition of an alien device.
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