Patent US 4,635,136

A massive inventory of labeled images, for example of every real estate parcel in a city, is produced on different frames of a video disc, from which the images may be randomly accessed for use in tax assessment, real estate sales and the like. Digital information is accessed from memory (e.g., magnetic disc) associated with a computer and monitored to define a route for a field rig, equipped with a video camera, which scans the images and provides TV signals in the order in which the digital information corresponding thereto is accessed. Each video image is labeled with text from the digital information corresponding to the image to produce TV signals with labeling information therein. Pluralities of frames of the TV signals are recorded on a video recorder. A single frame is selected from each plurality and recorded on a different frame of the video disc record.