Crowd emotion detection to light up a smart Christmas tree

The paper aims to describe part of a system created by Huawei, that proposes the first Christmas tree endowed with artificial intelligence. It is able to recognize facial emotions from images acquired by a mobile application and to light up itself with different lights and colors according to the prevalent sentiment. In this project, our role was to test the neural network integrated in the mobile application and able to recognize the sentiment of a facial expression. We have implemented a model based on a convolutional neural network and tested the accuracy of the recognition method, by creating an “ad-hoc” dataset of images.