Digital techniques Image processing 51 Signal processing 49 Congresses 25 Integrated circuits 17 Very large scale integration 14 Computer vision 12 Recording and reproducing 11 Sound 11 Data processing 10 Optical pattern recognition 7 Pattern recognition systems 6 Computer networks 5 Parallel processing (Electronic computers) 5 Computer architecture 4 Multimedia systems 4 Operating systems (Computers) 4 Computer graphics 3 Digital filters (Mathematics) 3 Digital television 3 Digital video 3 Geometry 3 Coding theory 2 Computer programs 2 Design and construction 2 Editing 2 Electronic circuits 2 Equipment and supplies 2 Fourier transformations 2 Mathematics 2