Caculate chamfer distance on the DiLiGent-MV dataset.

calculate_chamfer_distance.ipynb

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   "source": [
    "from pytorch3d.io import load_ply\n",
    "from pytorch3d.structures import Meshes\n",
    "from pytorch3d.loss import chamfer_distance"
   ]
  },
  {
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   "source": [
    "pred_path = '/path/to/DiLiGenT-MV/estMesh/bearPNG_Mesh_PAMI16Park.ply'\n",
    "gt_path = '/path/to/DiLiGenT-MV/mvpmsData/bearPNG/mesh_Gt.ply'"
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   "source": [
    "pred_verts, pred_faces = load_ply(pred_path)\n",
    "gt_verts, gt_faces = load_ply(gt_path)"
   ]
  },
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   "id": "3d1b528b-642c-4966-bf56-6ed6d4fdf472",
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   "source": [
    "pred_mesh = Meshes(verts=[pred_verts], faces=[pred_faces])\n",
    "gt_mesh = Meshes(verts=[gt_verts], faces=[gt_faces])"
   ]
  },
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   "cell_type": "code",
   "execution_count": 22,
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    {
     "data": {
      "text/plain": [
       "torch.Size([1, 1155220, 3])"
      ]
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     "execution_count": 22,
     "metadata": {},
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   ],
   "source": [
    "pred_mesh.verts_padded().shape"
   ]
  },
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   "cell_type": "code",
   "execution_count": 23,
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       "device(type='cpu')"
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     "execution_count": 23,
     "metadata": {},
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   ],
   "source": [
    "pred_mesh.verts_padded().device"
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  {
   "cell_type": "code",
   "execution_count": 24,
   "id": "93c7e174-c61d-4622-92aa-8c28b23c35d4",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "(tensor(2.5251, device='cuda:0'), None)"
      ]
     },
     "execution_count": 24,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "chamfer_distance(pred_mesh.verts_padded().cuda(), gt_mesh.verts_padded().cuda())"
   ]
  }
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