Files
cvpr/verify_uv_mapping.py
T
2023-01-25 12:25:59 +00:00

145 lines
5.1 KiB
Python

import os
import sys
import time
from unicodedata import name
import cv2
import random
import numpy as np
import tensorflow as tf
from dataset import DatasetFactory, StaticDataset
from custom_utils.custom_utils import batch_to_dict, UV2Mesh, _maskFaces
import plotly.graph_objects as go
import plotly.express as ex
import cmapy as cm
if __name__ == '__main__':
os.environ["CUDA_VISIBLE_DEVICES"] = "6"
uv2mesh = UV2Mesh()
F = np.load("custom_utils/smpl_faces.npy")
factory = DatasetFactory()
signature_dynamic = { 'id': (), 'frame_nr': (),
# 'pose_shape': (72 + 11,),
# 'uv_posed': (3, 512, 256,),
# 'uv_body_posed': (3, 512, 256,),
# 'mesh_body_posed': (14475, 3,),
# 'mesh_posed': (14475, 3,),
'mesh_unposed': (14475, 3,),
'uv_unposed': (3, 512, 256,),
# 'uv_curvature': (512, 256),
# 'mesh_curvature': (14475)
}
signature_static = { #'uv_static': (3, 512, 256,),
# 'mesh_static': (14475, 3,),
'mesh_mask': (14475,),
'uv_mask': (512, 256,),
# 'uv_shaped_body': (3, 512, 256,),
}
dataset = factory.get_dataset(folder='/home/workspace/local-data/jumpsuit_20/train',
batch_size=1,
signature=signature_dynamic)
static_dataset = StaticDataset(folder='/home/workspace/local-data/jumpsuit_20/train',
signature=signature_static)
uv_res = 256
def m2uv_array(m2uv):
result = np.zeros((14475, 2), dtype=np.int32)
for k, v in m2uv.items():
if len(v) == 2:
result[k] = list(v)
elif len(v) == 1:
x = v.pop()
result[k] = [x, x]
else:
assert False
return result
def unique_uv_map_mask(uv_map_discreet):
mask = np.zeros((uv_map_discreet.shape[0]), dtype=bool)
temp = np.zeros((uv_res * 2, uv_res))
for p in uv_map_discreet:
temp[p[0], p[1]] += 1
# temp = temp == 1
for i, p in enumerate(uv_map_discreet):
if temp[p[0], p[1]] == 1:
mask[i] = True
elif temp[p[0], p[1]] == 2:
mask[i] = True
temp[p[0], p[1]] = 0
return mask
def uv_to_mesh(uv, m2uv):
res = uv.shape[0]
mesh = np.zeros((14475, 3))
uv_pixels = uv_map_discreet[m2uv]
# counter = np.ones((14475))
# counter[m2uv[:, 0] == m2uv[:, 1]] = 2
mesh = np.mean(uv[uv_pixels[:, :, 0], uv_pixels[:, :, 1], :], axis=1) # / counter[:, np.newaxis]
return mesh
uv_map = np.load('custom_utils/stretched_uv_map_3.npy')
m2uv = np.load('custom_utils/m2uv.npy', allow_pickle=True).item()
m2uv = m2uv_array(m2uv)
uv_mask = np.load('custom_utils/mask_256x512.npy')
curvature_label_type = '6_25'
uv_res = 256
uv_mask = (cv2.resize(uv_mask * 255.0, (uv_res, uv_res * 2)) / 255).astype(bool)[:, :, np.newaxis]
uv_mask = cv2.dilate(uv_mask.astype(np.float32), cv2.getStructuringElement(cv2.MORPH_RECT, (2 * 2 + 1, 2 * 2 + 1), (2, 2)), iterations=2).astype(bool)[:, :, np.newaxis]
uv_map_discreet = np.floor(uv_map * uv_res).astype(np.int32)
uv_map_mask = unique_uv_map_mask(uv_map_discreet)
uv_counter = np.zeros((uv_map.shape[0]))
uv_counter[m2uv[:, 0]] = 1
uv_counter[m2uv[:, 1]] += 1
uv_counter = uv_counter[uv_map_mask]
for i, batch in enumerate(dataset):
print(i)
batch = static_dataset.expand_batch(batch_to_dict(batch, signature_dynamic))
uv_unposed = np.squeeze(batch['uv_unposed'].numpy())
mesh_unposed = np.squeeze(batch['mesh_unposed'].numpy())
mask = np.squeeze(batch['mesh_mask'].numpy()).astype(bool)
values = mesh_unposed
uv_values = np.zeros((uv_map.shape[0], 3))
uv_values[m2uv[:, 0]] = values
uv_values[m2uv[:, 1]] += values
uv_counter = np.zeros((uv_map.shape[0]))
uv_counter[m2uv[:, 0]] = 1
uv_counter[m2uv[:, 1]] += 1
uv_values /= uv_counter[:, np.newaxis]
x = uv_values
# verts = np.concatenate((verts, np.zeros((15068, 1))), axis=-1)
im = ((x - x.min()) / (x.max() - x.min())) * 255
x = np.transpose(uv_unposed, [1,2,0])
x = uv2mesh(uv_unposed[tf.newaxis,:,:,:])[0].numpy()[mask, :]
_, faces = _maskFaces(np.zeros((14475, 3), dtype=np.float32), F, mask)
go.Figure(data=[
go.Mesh3d(
# 8 vertices of a cube
x=x[:,0],
y=x[:,1],
z=x[:,2],
# i, j and k give the vertices of triangles
i = faces[:,0],
j = faces[:,1],
k = faces[:,2]
)]).show()
print()