Space-variant optical systems

Analytical and experimental investigations of 2-D space-variant optical processing techniques were conducted. Coherent processing investigations have included (1) an experimental study of the characteristics of photoresist phase masks for multiplex holography, (2) the development of facility for generating high quality computer-generated holograms by use of a laser plotter, and (3) analytical investigation of an idea for using 1-D techniques to perform 2-D space variant operations. In the incoherent processing area experiments have proceeded to test the tristimulus-based technique for performing complex operations using hue, saturation, and intensity parameters to represent complex numbers.