def main(opt):
model = build_model(opt)
model = model.cuda()
weights = torch.load(opt.load_weights_path,
map_location='cpu')['model_state_dict']
utils.safe_load_weights(model, weights)
model = model.eval()
img_a = imageio.imread('./sample_data/imgs/cathedral_1.jpg', pilmode='RGB')
img_b = imageio.imread('./sample_data/imgs/cathedral_2.jpg', pilmode='RGB')
engine = SparseEngine(model, 32, mode='tile')
t0 = time.time()
corrs = engine.cotr_corr_multiscale_with_cycle_consistency(
img_a,
img_b,
np.linspace(0.5, 0.0625, 4),
1,
max_corrs=opt.max_corrs,
queries_a=None)
t1 = time.time()
utils.visualize_corrs(img_a, img_b, corrs)
print(f'spent {t1-t0} seconds for {opt.max_corrs} correspondences.')
dense = triangulate_corr(corrs, img_a.shape, img_b.shape)
warped = cv2.remap(img_b,
dense[..., 0].astype(np.float32),
dense[..., 1].astype(np.float32),
interpolation=cv2.INTER_LINEAR,
borderMode=cv2.BORDER_CONSTANT)
plt.imshow(warped / 255 * 0.5 + img_a / 255 * 0.5)
plt.show()
def main(opt):
model = build_model(opt)
model = model.cuda()
weights = torch.load(opt.load_weights_path,
map_location='cpu')['model_state_dict']
utils.safe_load_weights(model, weights)
model = model.eval()
img_a = imageio.imread('./sample_data/imgs/face_1.png', pilmode='RGB')
img_b = imageio.imread('./sample_data/imgs/face_2.png', pilmode='RGB')
queries = np.load('./sample_data/face_landmarks.npy')[0]
engine = SparseEngine(model, 32, mode='stretching')
corrs = engine.cotr_corr_multiscale(img_a,
img_b,
np.linspace(0.5, 0.0625, 4),
1,
queries_a=queries,
force=False)
f, axarr = plt.subplots(1, 2)
axarr[0].imshow(img_a)
axarr[0].scatter(*queries.T, s=1)
axarr[0].title.set_text('Reference Face')
axarr[0].axis('off')
axarr[1].imshow(img_b)
axarr[1].scatter(*corrs[:, 2:].T, s=1)
axarr[1].title.set_text('Target Face')
axarr[1].axis('off')
plt.show()
def main(opt):
model = build_model(opt)
model = model.cuda()
weights = torch.load(opt.load_weights_path,
map_location='cpu')['model_state_dict']
utils.safe_load_weights(model, weights)
model = model.eval()
img_a = imageio.imread('./sample_data/imgs/paint_1.JPG', pilmode='RGB')
img_b = imageio.imread('./sample_data/imgs/paint_2.jpg', pilmode='RGB')
rep_img = imageio.imread('./sample_data/imgs/Meisje_met_de_parel.jpg',
pilmode='RGB')
rep_mask = np.ones(rep_img.shape[:2])
lu_corner = [932, 1025]
ru_corner = [2469, 901]
lb_corner = [908, 2927]
rb_corner = [2436, 3080]
queries = np.array([lu_corner, ru_corner, lb_corner,
rb_corner]).astype(np.float32)
rep_coord = np.array([[0, 0], [rep_img.shape[1], 0], [0, rep_img.shape[0]],
[rep_img.shape[1],
rep_img.shape[0]]]).astype(np.float32)
engine = SparseEngine(model, 32, mode='stretching')
corrs = engine.cotr_corr_multiscale(img_a,
img_b,
np.linspace(0.5, 0.0625, 4),
1,
queries_a=queries,
force=True)
T = cv2.getPerspectiveTransform(rep_coord, corrs[:, 2:].astype(np.float32))
vmask = cv2.warpPerspective(rep_mask, T,
(img_b.shape[1], img_b.shape[0])) > 0
warped = cv2.warpPerspective(rep_img, T, (img_b.shape[1], img_b.shape[0]))
out = warped * vmask[..., None] + img_b * (~vmask[..., None])
f, axarr = plt.subplots(1, 4)
axarr[0].imshow(rep_img)
axarr[0].title.set_text('Virtual Paint')
axarr[0].axis('off')
axarr[1].imshow(img_a)
axarr[1].title.set_text('Annotated Frame')
axarr[1].axis('off')
axarr[2].imshow(img_b)
axarr[2].title.set_text('Target Frame')
axarr[2].axis('off')
axarr[3].imshow(out)
axarr[3].title.set_text('Overlay')
axarr[3].axis('off')
plt.show()
def match_pairs(self, im1_path, im2_path, queries_im1=None):
im1 = imageio.imread(im1_path, pilmode='RGB')
im2 = imageio.imread(im2_path, pilmode='RGB')
engine = SparseEngine(self.model, self.batch_size, mode='tile')
matches = engine.cotr_corr_multiscale(im1,
im2,
np.linspace(0.5, 0.0625, 4),
1,
max_corrs=self.max_corrs,
queries_a=queries_im1,
force=True)
# Fake scores as not output by the model
scores = np.ones(len(matches))
kpts1 = matches[:, :2]
kpts2 = matches[:, 2:4]
return matches, kpts1, kpts2, scores
def main(opt):
model = build_model(opt)
model = model.cuda()
weights = torch.load(opt.load_weights_path)['model_state_dict']
utils.safe_load_weights(model, weights)
model = model.eval()
img_a = imageio.imread('./sample_data/imgs/21526113_4379776807.jpg')
img_b = imageio.imread('./sample_data/imgs/21126421_4537535153.jpg')
kp_a = np.load('./sample_data/21526113_4379776807.jpg.disk.kpts.npy')
kp_b = np.load('./sample_data/21126421_4537535153.jpg.disk.kpts.npy')
if opt.faster_infer:
engine = FasterSparseEngine(model, 32, mode='tile')
else:
engine = SparseEngine(model, 32, mode='tile')
t0 = time.time()
corrs_a_b = engine.cotr_corr_multiscale(img_a,
img_b,
np.linspace(0.5, 0.0625, 4),
1,
max_corrs=kp_a.shape[0],
queries_a=kp_a,
force=True)
corrs_b_a = engine.cotr_corr_multiscale(img_b,
img_a,
np.linspace(0.5, 0.0625, 4),
1,
max_corrs=kp_b.shape[0],
queries_a=kp_b,
force=True)
t1 = time.time()
print(f'COTR spent {t1-t0} seconds.')
inds_a_b = np.argmin(distance_matrix(corrs_a_b[:, 2:], kp_b), axis=1)
matched_a_b = np.stack([np.arange(kp_a.shape[0]), inds_a_b]).T
inds_b_a = np.argmin(distance_matrix(corrs_b_a[:, 2:], kp_a), axis=1)
matched_b_a = np.stack([np.arange(kp_b.shape[0]), inds_b_a]).T
good = 0
final_matches = []
for m_ab in matched_a_b:
for m_ba in matched_b_a:
if (m_ab == m_ba[::-1]).all():
good += 1
final_matches.append(m_ab)
break
final_matches = np.array(final_matches)
final_corrs = np.concatenate(
[kp_a[final_matches[:, 0]], kp_b[final_matches[:, 1]]], axis=1)
_, mask = cv2.findFundamentalMat(final_corrs[:, :2],
final_corrs[:, 2:],
cv2.FM_RANSAC,
ransacReprojThreshold=5,
confidence=0.999999)
utils.visualize_corrs(img_a, img_b, final_corrs[np.where(mask[:, 0])])
def main(opt):
model = build_model(opt)
model = model.cuda()
weights = torch.load(opt.load_weights_path,
map_location='cpu')['model_state_dict']
utils.safe_load_weights(model, weights)
model = model.eval()
img_a = imageio.imread('./sample_data/imgs/img_0.jpg', pilmode='RGB')
img_b = imageio.imread('./sample_data/imgs/img_1.jpg', pilmode='RGB')
if opt.faster_infer:
engine = FasterSparseEngine(model, 32, mode='tile')
else:
engine = SparseEngine(model, 32, mode='tile')
t0 = time.time()
corrs = engine.cotr_corr_multiscale_with_cycle_consistency(
img_a,
img_b,
np.linspace(0.5, 0.0625, 4),
1,
max_corrs=opt.max_corrs,
queries_a=None)
t1 = time.time()
print(f'spent {t1-t0} seconds for {opt.max_corrs} correspondences.')
camera_a = np.load('./sample_data/camera_0.npy', allow_pickle=True).item()
camera_b = np.load('./sample_data/camera_1.npy', allow_pickle=True).item()
center_a = camera_a['cam_center']
center_b = camera_b['cam_center']
rays_a = pcd_projector.PointCloudProjector.pcd_2d_to_pcd_3d_np(
corrs[:, :2],
np.ones([corrs.shape[0], 1]) * 2,
camera_a['intrinsic'],
motion=camera_a['c2w'])
rays_b = pcd_projector.PointCloudProjector.pcd_2d_to_pcd_3d_np(
corrs[:, 2:],
np.ones([corrs.shape[0], 1]) * 2,
camera_b['intrinsic'],
motion=camera_b['c2w'])
dir_a = rays_a - center_a
dir_b = rays_b - center_b
center_a = np.array([center_a] * corrs.shape[0])
center_b = np.array([center_b] * corrs.shape[0])
points = triangulate_rays_to_pcd(center_a, dir_a, center_b, dir_b)
colors = (
img_a[tuple(np.floor(corrs[:, :2]).astype(int)[:, ::-1].T)] / 255 +
img_b[tuple(np.floor(corrs[:, 2:]).astype(int)[:, ::-1].T)] / 255) / 2
colors = np.array(colors)
pcd = o3d.geometry.PointCloud()
pcd.points = o3d.utility.Vector3dVector(points)
pcd.colors = o3d.utility.Vector3dVector(colors)
o3d.visualization.draw_geometries([pcd])
def main(opt):
model = build_model(opt)
model = model.cuda()
weights = torch.load(opt.load_weights_path)['model_state_dict']
utils.safe_load_weights(model, weights)
model = model.eval()
img_a = imageio.imread('./sample_data/imgs/petrzin_01.png')
img_b = imageio.imread('./sample_data/imgs/petrzin_02.png')
img_a_area = 1.0
img_b_area = 1.0
gt_corrs = np.loadtxt('./sample_data/petrzin_pts.txt')
kp_a = gt_corrs[:, :2]
kp_b = gt_corrs[:, 2:]
engine = SparseEngine(model, 32, mode='tile')
t0 = time.time()
corrs = engine.cotr_corr_multiscale(img_a,
img_b,
np.linspace(0.75, 0.1, 4),
1,
max_corrs=kp_a.shape[0],
queries_a=kp_a,
force=True,
areas=[img_a_area, img_b_area])
t1 = time.time()
print(f'COTR spent {t1-t0} seconds.')
utils.visualize_corrs(img_a, img_b, corrs)
plt.imshow(img_b)
plt.scatter(kp_b[:, 0], kp_b[:, 1])
plt.scatter(corrs[:, 2], corrs[:, 3])
plt.plot(np.stack([kp_b[:, 0], corrs[:, 2]], axis=1).T,
np.stack([kp_b[:, 1], corrs[:, 3]], axis=1).T,
color=[1, 0, 0])
plt.show()