1. An optical potential field mapping system for producing a potential field map of a physical region, said system comprising: imaging means for generating images of the physical region, said imaging means including a spatial light modulating means for modulating the images based on a video command signal and a write command signal; processing means for processing at least two of the images to produce the potential field map of the physical region, said processing means including a recording means for storing the images, and a first control means for generating the write command signal and the video command signal for use by the imaging means, the video command signal including at least one of an obstacle pattern signal, a goal pattern signal, and a feedback pattern signal; said first control means including inverting means for generating inverted images using the stored images; threshold means for removing noise from the inverted images to generate a feedback pattern; comparison means for comparing at least two stored images to determine a change therebetween, mapping means for creating a potential field map based on output from the comparison means; feedback writing means for generating a feedback pattern signal based on the feedback pattern; obstacle writing means for generating an obstacle pattern signal; goal writing means for generating a goal pattern signal; said mapping means including averaging means for averaging at least two of the stored images to create the potential field map; said processing means including second control means for outputting to the spatial light modulating means a first control signal and a second control signal; said spatial light modulating means including means for forming, in response to the first control signal, an image corresponding to the video of an electron depletion writing mode and electron deposition writing mode based on the writing command signal; beam emitting means for emitting a main beam; said imaging means including converting means for producing a goal/feedback writing beam and an obstacle writing beam based on the main beam, and spatial light modulating means for generating the images using at least one of the obstacle writing beam and the goal/feedback writing beam; said converting means including beam splitting means for splitting the main beam into at least a first beam and a second beam, obstacle pattern means for modulating the first beam to generate the obstacle wring beam, modulating means for modulating the second beam to generate the goal/feedback writing beam; and the spatial light modulating means including means for electron depletion writing an obstacle pattern in the image based on the obstacle writing beam, and for electron deposition writing at least one of the goal pattern and feedback pattern in the image based on the goal/feedback writing beam.