1x1 Convolution
1x1 Convolution
A **1 x 1 Convolution** is a [convolution](https://paperswithcode.com/method/convolution) with some special properties in that it can be used for dimensionality reduction, efficient low dimensional embeddings, and applying non-linearity after convolutions. It maps an input pixel with all its channels to an output pixel which can be squeezed to a desired output depth. It can be viewed as an [MLP](https://paperswithcode.com/method/feedforward-network) looking at a particular pixel location.

Image Credit: [http://deeplearning.ai](http://deeplearning.ai)
Network In Network
https://paperswithcode.com/paper/network-in-network
Network In Network