Efficient attention layer (3-D)

Wraps the EfficientAttentionLayer3D modified from the following python implementation

layer_efficient_attention_3d(
  object,
  numberOfFiltersFG = 4L,
  numberOfFiltersH = 8L,
  kernelSize = 1L,
  poolSize = 2L,
  doConcatenateFinalLayers = FALSE,
  trainable = TRUE
)

Arguments

object	Object to compose layer with. This is either a keras::keras_model_sequential to add the layer to or another Layer which this layer will call.
numberOfFiltersFG	number of filters for F and G layers.
numberOfFiltersH	number of filters for H. If = NA, only use filter F for efficiency.
kernelSize	kernel size in convolution layer.
poolSize	pool size in max pool layer.
doConcatenateFinalLayers	concatenate final layer with input. Alternatively, add. Default = FALSE

Value

a keras layer tensor

Details

https://github.com/taki0112/Self-Attention-GAN-Tensorflow

based on the following paper:

https://arxiv.org/abs/1805.08318

Examples

if (FALSE) {
library( keras )
library( ANTsRNet )

inputShape <- c( 100, 100, 100, 3 )
input <- layer_input( shape = inputShape )

numberOfFiltersFG <- 64L
outputs <- input %>% layer_efficient_attention_3d( numberOfFiltersFG )

model <- keras_model( inputs = input, outputs = outputs )
}