Shen Jinyuan, Zhang Yanxin, Wang Xuming, et al. Optical Implementation of WTA Neural Network with Bipolar Neuron States[J]. Acta Electronica Sinica, 1992, (10): 69-75.
Shen Jinyuan, Zhang Yanxin, Wang Xuming, et al. Optical Implementation of WTA Neural Network with Bipolar Neuron States[J]. Acta Electronica Sinica, 1992, (10): 69-75.DOI:
The optical implementation of WTA neural network model with bipolar input-layer neurons and bipolar input-layer-to-hidden-layer connections is presented. The input to the hidden-layer neurons is the bipolarly weighted summation of the bipolar neuron states of the input-layer
which is equivalent to the unipolarly weighted summation of the unipolar input states and the summation of the unipolar reversed storage pattern by a constant 1/2. The constant 1/2 can be implemented by dividing each neural pixel into two equal parts of which one is opaque and the other is transparent. Experimental results shows that both the storage capacity and the content addressability of the optical system are improved compared to those of the unipolar WTA optical system