Optical data processing 50 Signal processing 15 Image processing 12 Digital techniques 6 Optical communications 6 Optoelectronic devices 5 Computers, Optical 4 Diffraction 3 Optoelectronics 3 Computer architecture 2 Computer-aided design 2 Data processing 2 Entropy (Information theory) 2 Equipment and supplies 2 Imaging systems 2 Integrated optics 2 Laser communication systems 2 Optical fiber communication 2 Optical scanners 2 Optics 2 Picture archiving and communication systems 2 Scanning systems 2 System design 2 Very high speed integrated circuits 2 Artificial vision 1 Computer vision 1 Data transmission systems 1 Engineering 1 Fiber optics 1 Geometrical optics 1