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The motivation of the dynamic shape recognition scheme which uses a moving slit in front of a frame of imagery is a simple one: in many TV-like displays and recording systems, the frame of imagery is painted line by line, exactly as if the frame was scanned by an optical slit having the width of the line. This slit moves down the frame with a constant velocity, the velocity of the vertical sweep. Equivalently in strip photography, the image is painted line by line through a thin slit which moves linearly with respect to the recording medium.

In recent years, an engineer trying to mechanize any form of "intelligence" has faced new challenges. Giant strides in technology do not seem to have overcome fundamental difficulties, nor, so it seems, have ever increasing advances in physics, mathematics, chemistry, and the other branches of science. Obviously, an important link is missing.© (1969) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.