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<p>Simple, economical hardware based on incoherent space-frequency analysis overcomes many drawbacks associated with coherent optical systems. We have adopted this technique in developing a compact camera unit that uses a liquid-crystal light modulator for data input. This optically addressable camera system can automate a variety of visual inspection tasks. Adapted to conventional microscopes, it also enables automatic inspection of biological specimen textures, a useful tool in disease detection.</p>

F. Reichel, E. Gaertner and W. Loeffler, "Using Optical Space-Frequency Analysis for Real-Time Pattern Recognition," in IEEE Micro, vol. 14, no. , pp. 49-60, 1994.
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