Results 31 to 40 of about 5,938,476 (293)

Optical neural networks [PDF]

open access: yesSPIE Proceedings, 1994
The trade-off between the number of neurons that can be implemented with a single correlator and the shift invariance that each neuron has is investigated. A new type of correlator implemented with a planar hologram is described whose shift invariance can be controlled by setting the position of the hologram properly.
Psaltis, Demetri, Levene, Michael
openaire   +2 more sources

Correlating matched-filter model for analysis and optimisation of neural networks [PDF]

open access: yes, 1989
A new formalism is described for modelling neural networks by means of which a clear physical understanding of the network behaviour can be gained.
Midwinter, J.E.   +7 more
core   +1 more source

Performance analysis of different DCNN models in remote sensing image object detection

open access: yesEURASIP Journal on Image and Video Processing, 2022
In recent years, deep learning, especially deep convolutional neural networks (DCNN), has made great progress. Many researchers use different DCNN models to detect remote sensing targets. Different DCNN models have different advantages and disadvantages.
Huaijin Liu   +3 more
doaj   +1 more source

Optical frontend for a convolutional neural network

open access: yesApplied Optics, 2019
The parallelism of optics and the miniaturization of optical components using nanophotonic structures, such as metasurfaces present a compelling alternative to electronic implementations of convolutional neural networks. The lack of a low-power optical nonlinearity, however, requires slow and energy-inefficient conversions between the electronic and ...
Shane Colburn   +3 more
openaire   +4 more sources

Lazy training of radial basis neural networks [PDF]

open access: yes, 2006
Proceeding of: 16th International Conference on Artificial Neural Networks, ICANN 2006. Athens, Greece, September 10-14, 2006Usually, training data are not evenly distributed in the input space.
Galván, Inés M.   +5 more
core   +1 more source

A fibre optic sensor for the measurement of surface roughness and displacement using artificial neural networks [PDF]

open access: yes, 1997
This paper presents a fiber optic sensor system, artificial neural networks (fast back-propagation) are employed for the data processing. The use of the neural networks makes it possible for the sensor to be used both for surface roughness and ...
Butler, C, Lu, Y, Zhang, K, Yang, QP
core   +1 more source

Faster and More Accurate Geometrical-Optics Optical Force Calculation Using Neural Networks

open access: yes, 2023
We use neural networks to improve not only the speed but also the accuracy of the optical force calculations in the geometrical-optics approximation.
Neves, Antonio A.R.   +7 more
core   +1 more source

Optical character recognition with neural networks

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2019
XXI century is the age of global automation and digitization. There is high demand for optical recognition software, including character recognition. There are different approaches in solution optical recognition problem.
Aidarbek Shalakhmetov, Sanzhar Aubakirov
doaj   +1 more source

An optical neural chip for implementing complex-valued neural network

open access: yesNature Communications, 2021
Most demonstrations of optical neural networks for computing have been so far limited to real-valued frameworks. Here, the authors implement complex-valued operations in an optical neural chip that integrates input preparation, weight multiplication and ...
H. Zhang   +17 more
doaj   +1 more source

All-optical Fourier neural network using partially coherent light

open access: yesChip
Optical neural networks present distinct advantages over traditional electrical counterparts, such as accelerated data processing and reduced energy consumption.
Jianwei Qin   +5 more
doaj   +1 more source

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