Adt Security Systems, Inc.

Philippe F Rioux

Lorne D O'Connor

Bernard J Roy

Andre L Raymond

Donald A Dingle

A scene to be monitored (e.g., at a remote location or at a later time) is captured as a series of still images. These images are digitally encoded and stored in a digital memory for subsequent retrieval and viewing. If the scene includes a moving object (e.g., the side of a moving freight train), the images may be taken so that they are substantially mutually exclusive and collectively exhaustive of the moving object. During playback, two or more adjacent images may be displayed adjacent to one another so that any feature partly present in adjacent images is visible as a whole. If the observer is at a location remote from the point at which the images are taken, various techniques can be used to facilitate transmission of the image information (preferably in digital form) via relatively low-cost transmission links such as voice-grade telephone lines.

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Boucherville, Canada

Philippe F Rioux