3D Images and Deep Learning

With the development of AR/VR, self-driving cars, 3D vision problem becomes more and more important since it provides much richer information than 2D. Polygonal mesh: is collection of vertices, edges and faces that defines the objects' surface in 3 dimensions. It can capture granular details in a fairly compact representation. In pointNet models, max pooling is used as a symmetric function. Max pooling is used to select the most extraordinary feature of all points.