A surface-normal photodetector as nonlinear activation function in diffractive optical neural networks.
Farshid AshtianiMohamad Hossein IdjadiTing-Chen HuStefano GrillandaDavid T. NeilsonMark P. EarnshawMark CappuzzoRose KopfAlaric TateAndrea Blanco-RedondoPublished in: CoRR (2023)
Keyphrases
- activation function
- surface normals
- neural network
- refractive index
- photometric stereo
- nonlinear functions
- shape from shading
- light source
- artificial neural networks
- back propagation
- feed forward
- surface reconstruction
- feed forward neural networks
- neural nets
- hidden layer
- multilayer perceptron
- feedforward neural networks
- learning rate
- network architecture
- backpropagation algorithm
- multi layer perceptron
- radial basis function
- basis functions
- zenith angle
- single image
- neural network model
- training phase
- fuzzy neural network
- rbf neural network
- image data
- learning algorithm