1. A method of image processing, comprising the steps of: constructing a results key at a first processing station making the results key available to a central computer system that includes at least one image capture and processing device remote from the first processing station, where the image capture and processing device is operable to capture an image presented to a field of view of the image capture and processing device; using the central computer system remotely from the first processing station to analyze the field of view image in cooperation with the results key, and to provide an output signal based on the results of the analysis; and; detecting specific human movements or postures and provides an output signal when said specific movements occur.