Optical pattern recognition

Artificial Neural Networks (ANNs) attempt to emulate their biological counterparts. McCulloch and Pitts (1943) proposed a simple model of a neuron, and Hebb (1949) described a technique which became known as Hebbian learning. Rosenblatt (1961), devised a single layer of neurons, called a Perceptron, that was used for optical pattern recognition. 

Reversible hologram Spatial light modulator Optical pattern recognition Dynamic time averaging interferometry photochromic effect (ground state-M state transition) BR (genetic mutants) [43-50]... 

The simplest neural network is the perceptron. It was introduced by E. Rosenblatt (1950) and served the purpose of optical pattern recognition, that is, it represents a very simple model of the retina of the eye. 

Javidi, B. Horner, J. L. (1994). Optical pattern recognition for validation and security verification. Optical Engineering, Vol. 33, pp. 1752-1756,1994... 

IR-emitting diodes (GaAs) Remote controls, optical switches, optoisolators, choppers, pattern recognition devices... 

Khalid J. Siddiqui and DeLyle Eastwood, Pattern Recognition, Chemometrics, and Imaging for Optical Environmental Monitoring. Proceedings of a symposium held 20-21 September 1999 in Boston, Mass. Proc. SPIE-Int. Soc. Opt. Eng., Vol. 3854, 1999. 

FIGURE 9.15 Raman spectra of the plastics (a) high-density polyethylene (HDPE), (b) low-density polyethylene (LDPE), (c) polyethylene terephthalate (PET), (d) polypropylene (PP), (e) polystyrene (PS), and (f) polyvinylchloride (PVC). (From Pattern Recognition, Chemometrics, and Imaging for Optical Environmental Monitoring, Siddiqui, K. and Eastwood, D., Eds., Proceedings of SPIE, 1999, pp. 103-112. With permission.)... 

Lyons, W. B. Lewis, E. Neural Networks and Pattern Recognition Techniques Applied to Optical Fibre Sensors. Trans. Inst. Measurm. Control 2000, 22, 385 104... 

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