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Upload model/archs/decoders/shape_texture_net.py with huggingface_hub
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model/archs/decoders/shape_texture_net.py
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import torch
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import torch.nn as nn
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import torch.nn.functional as F
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class TetTexNet(nn.Module):
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def __init__(self, plane_reso=64, padding=0.1, fea_concat=True):
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super().__init__()
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# self.c_dim = c_dim
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self.plane_reso = plane_reso
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self.padding = padding
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self.fea_concat = fea_concat
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def forward(self, rolled_out_feature, query):
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# rolled_out_feature: rolled-out triplane feature
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# query: queried xyz coordinates (should be scaled consistently to ptr cloud)
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plane_reso = self.plane_reso
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triplane_feature = dict()
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triplane_feature['xy'] = rolled_out_feature[:, :, :, 0: plane_reso]
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triplane_feature['yz'] = rolled_out_feature[:, :, :, plane_reso: 2 * plane_reso]
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triplane_feature['zx'] = rolled_out_feature[:, :, :, 2 * plane_reso:]
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query_feature_xy = self.sample_plane_feature(query, triplane_feature['xy'], 'xy')
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query_feature_yz = self.sample_plane_feature(query, triplane_feature['yz'], 'yz')
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query_feature_zx = self.sample_plane_feature(query, triplane_feature['zx'], 'zx')
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if self.fea_concat:
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query_feature = torch.cat((query_feature_xy, query_feature_yz, query_feature_zx), dim=1)
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else:
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query_feature = query_feature_xy + query_feature_yz + query_feature_zx
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output = query_feature.permute(0, 2, 1)
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return output
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# uses values from plane_feature and pixel locations from vgrid to interpolate feature
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def sample_plane_feature(self, query, plane_feature, plane):
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# CYF note:
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# for pretraining, query are uniformly sampled positions w.i. [-scale, scale]
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# for training, query are essentially tetrahedra grid vertices, which are
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# also within [-scale, scale] in the current version!
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# xy range [-scale, scale]
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if plane == 'xy':
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xy = query[:, :, [0, 1]]
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elif plane == 'yz':
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xy = query[:, :, [1, 2]]
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elif plane == 'zx':
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xy = query[:, :, [2, 0]]
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else:
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raise ValueError("Error! Invalid plane type!")
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xy = xy[:, :, None].float()
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# not seem necessary to rescale the grid, because from
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# https://pytorch.org/docs/stable/generated/torch.nn.functional.grid_sample.html,
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# it specifies sampling locations normalized by plane_feature's spatial dimension,
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# which is within [-scale, scale] as specified by encoder's calling of coordinate2index()
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vgrid = 1.0 * xy
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sampled_feat = F.grid_sample(plane_feature, vgrid, padding_mode='border', align_corners=True, mode='bilinear').squeeze(-1)
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return sampled_feat
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import torch
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import torch.nn as nn
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import torch.nn.functional as F
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class TetTexNet(nn.Module):
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def __init__(self, plane_reso=64, padding=0.1, fea_concat=True):
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super().__init__()
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# self.c_dim = c_dim
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self.plane_reso = plane_reso
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self.padding = padding
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self.fea_concat = fea_concat
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def forward(self, rolled_out_feature, query):
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# rolled_out_feature: rolled-out triplane feature
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# query: queried xyz coordinates (should be scaled consistently to ptr cloud)
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plane_reso = self.plane_reso
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triplane_feature = dict()
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triplane_feature['xy'] = rolled_out_feature[:, :, :, 0: plane_reso]
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triplane_feature['yz'] = rolled_out_feature[:, :, :, plane_reso: 2 * plane_reso]
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triplane_feature['zx'] = rolled_out_feature[:, :, :, 2 * plane_reso:]
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query_feature_xy = self.sample_plane_feature(query, triplane_feature['xy'], 'xy')
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query_feature_yz = self.sample_plane_feature(query, triplane_feature['yz'], 'yz')
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query_feature_zx = self.sample_plane_feature(query, triplane_feature['zx'], 'zx')
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if self.fea_concat:
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query_feature = torch.cat((query_feature_xy, query_feature_yz, query_feature_zx), dim=1)
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else:
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query_feature = query_feature_xy + query_feature_yz + query_feature_zx
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output = query_feature.permute(0, 2, 1)
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return output
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# uses values from plane_feature and pixel locations from vgrid to interpolate feature
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def sample_plane_feature(self, query, plane_feature, plane):
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# CYF note:
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# for pretraining, query are uniformly sampled positions w.i. [-scale, scale]
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# for training, query are essentially tetrahedra grid vertices, which are
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# also within [-scale, scale] in the current version!
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# xy range [-scale, scale]
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if plane == 'xy':
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xy = query[:, :, [0, 1]]
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elif plane == 'yz':
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xy = query[:, :, [1, 2]]
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elif plane == 'zx':
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xy = query[:, :, [2, 0]]
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else:
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raise ValueError("Error! Invalid plane type!")
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xy = xy[:, :, None].float()
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# not seem necessary to rescale the grid, because from
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# https://pytorch.org/docs/stable/generated/torch.nn.functional.grid_sample.html,
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# it specifies sampling locations normalized by plane_feature's spatial dimension,
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# which is within [-scale, scale] as specified by encoder's calling of coordinate2index()
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vgrid = 1.0 * xy
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sampled_feat = F.grid_sample(plane_feature, vgrid, padding_mode='border', align_corners=True, mode='bilinear').squeeze(-1)
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return sampled_feat
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