SPLATNet: Sparse Lattice Networks for Point Cloud Processing

• Published in: 2018 IEEE/CVF Conference on Computer Vision and Pattern Recognition pp. 2530 - 2539
• Main Authors: Su, Hang, Jampani, Varun, Sun, Deqing, Maji, Subhransu, Kalogerakis, Evangelos, Yang, Ming-Hsuan, Kautz, Jan
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.06.2018
• Subjects: Computer architecture; Convolution; Lattices; Shape; Three-dimensional displays; Two dimensional displays

We present a network architecture for processing point clouds that directly operates on a collection of points represented as a sparse set of samples in a high-dimensional lattice. Naïvely applying convolutions on this lattice scales poorly, both in terms of memory and computational cost, as the si...