A4.3.9 Convolutional Neural Networks (CNNs)
A convolutional neural network, or CNN, is the kind of neural network built for images. A standard multi-layer perceptron has to flatten an image into a single line of pixels before it can read it, which throws away the arrangement of the picture. A CNN keeps the two-dimensional structure and learns to recognise features in it, building from small details up to whole objects. This page describes how a CNN learns this...