2020

H3DNet: 3D Object Detection Using Hybrid Geometric Primitives

Zhang, Zaiwei, Sun, Bo, Yang, Haitao et al.

Understand

We introduce H3DNet, which takes a colorless 3D point cloud as input and outputs a collection of oriented object bounding boxes (or BB) and their semantic labels.

  • The critical idea of H3DNet is to predict a hybrid set of geometric primitives, i.e., BB centers, BB face centers, and BB edge centers.
  • We show how to convert the predicted geometric primitives into object proposals by defining a distance function between an object and the geometric primitives.
  • This distance function enables continuous optimization of object proposals, and its local minimums provide high-fidelity object proposals.

Reading the bibliography…