1. 搭建scn网络 1.1 网络代码 scn: sparse conv network (稀释卷积网络) 参考:https://github.com/tianweiy/CenterPoint/blob/master/det3d/models/backbones/scn.py, 使用sparseconv搭建一个稀疏卷积网络。 import numpy as np try:import spconv.pytorch as spconv from spconv.pytorch import opsfrom spconv.pytorch import SparseConv3d