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Advances in optical invariant pattern recognition

Optics has increasingly been used to improve the performance of computing systems. This is most evident in the field of optical interconnects, but the advent of new devices like micro laser arrays, SEED devices and other components that allow the exploitation of the natural parallelism of Optics are promising inroads of optics into computing functions themselves. In recent years much progress has been made in understanding the relationships between various invariant pattern techniques, in particular how the optimization of one performance parameter limits the optimization of another.