Neural network that incorporates direct optical imaging

Details Neural network that incorporates direct optical imaging Neural network that incorporates direct optical imaging

1997-09-03

1998-11-24

MacDonald, Allen R.

Data processing: artificial intelligence

Neural network

Structure

G06F 1518

Patent

active

058421912

ABSTRACT:
A compact neural network architecture is trainable to sense and classify an optical image directly projected onto it. The system is based upon the combination of a two-dimensional amorphous silicon photoconductor array and a liquid-crystal spatial light modulator. Appropriate filtering of the incident optical image upon capture is incorporated into the net work training rules, through a modification of the standard backpropagation training algorithm. Training of the network on two image classification problems is described: the recognition of handprinted digits, and facial recognition. The network, once trained is capable of standalone operation, sensing an incident image and outputting a final classification signal in real time.

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