def __init__()

in models/backbone_module.py [0:0]


    def __init__(self, input_feature_dim=0):
        super().__init__()

        self.sa1 = PointnetSAModuleVotes(
                npoint=2048,
                radius=0.2,
                nsample=64,
                mlp=[input_feature_dim, 64, 64, 128],
                use_xyz=True,
                normalize_xyz=True
            )

        self.sa2 = PointnetSAModuleVotes(
                npoint=1024,
                radius=0.4,
                nsample=32,
                mlp=[128, 128, 128, 256],
                use_xyz=True,
                normalize_xyz=True
            )

        self.sa3 = PointnetSAModuleVotes(
                npoint=512,
                radius=0.8,
                nsample=16,
                mlp=[256, 128, 128, 256],
                use_xyz=True,
                normalize_xyz=True
            )

        self.sa4 = PointnetSAModuleVotes(
                npoint=256,
                radius=1.2,
                nsample=16,
                mlp=[256, 128, 128, 256],
                use_xyz=True,
                normalize_xyz=True
            )

        self.fp1 = PointnetFPModule(mlp=[256+256,256,256])
        self.fp2 = PointnetFPModule(mlp=[256+256,256,256])