Deep Learning with TensorFlow and Keras - Third Edition

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Convolutional Neural Networks

In Chapter 1, Neural Network Foundations with TF, we discussed dense networks, in which each layer is fully connected to the adjacent layers. We looked at one application of those dense networks in classifying the MNIST handwritten characters dataset. In that context, each pixel in the input image has been assigned to a neuron for a total of 784 (28 x 28 pixels) input neurons. However, this strategy does not leverage the spatial structure and relationships between each image. In particular, this piece of code is a dense network that transforms the bitmap representing each written digit into a flat vector where the local spatial structure is removed. Removing the spatial structure is a problem because important ...