def HessAff_Detect(img, PatchSize=60, Nfeatures=500):
var_image = torch.autograd.Variable(torch.from_numpy(img.astype(
np.float32)),
volatile=True)
var_image_reshape = var_image.view(1, 1, var_image.size(0),
var_image.size(1))
HessianAffine = ScaleSpaceAffinePatchExtractor(mrSize=5.192,
num_features=Nfeatures,
border=PatchSize / 2,
num_Baum_iters=1)
# if USE_CUDA:
# HessianAffine = HessianAffine.cuda()
# var_image_reshape = var_image_reshape.cuda()
with torch.no_grad():
LAFs, responses = HessianAffine(var_image_reshape, do_ori=True)
patches = HessianAffine.extract_patches_from_pyr(LAFs,
PS=PatchSize).cpu()
# these are my affine maps to work with
Alist = convertLAFs_to_A23format(LAFs).cpu().numpy().astype(np.float32)
KPlist = [
cv2.KeyPoint(x=A[0, 2],
y=A[1, 2],
_size=10,
_angle=0.0,
_response=1,
_octave=packSIFTOctave(0, 0),
_class_id=1) for A in Alist
]
return KPlist, np.array(patches), Alist, responses.cpu()
def AffNetHardNet_describeFromKeys(img_np, KPlist):
img = torch.autograd.Variable(torch.from_numpy(img_np.astype(np.float32)),
volatile=True)
img = img.view(1, 1, img.size(0), img.size(1))
HessianAffine = ScaleSpaceAffinePatchExtractor(mrSize=5.192,
num_features=0,
border=0,
num_Baum_iters=0)
if USE_CUDA:
HessianAffine = HessianAffine.cuda()
img = img.cuda()
with torch.no_grad():
HessianAffine.createScaleSpace(
img) # to generate scale pyramids and stuff
descriptors = []
Alist = []
n = 0
# for patch_np in patches:
for kp in KPlist:
x, y = np.float32(kp.pt)
LAFs = normalizeLAFs(
torch.tensor([[AffNetPix.PS / 2, 0, x], [0, AffNetPix.PS / 2,
y]]).reshape(1, 2, 3),
img.size(3), img.size(2))
with torch.no_grad():
patch = HessianAffine.extract_patches_from_pyr(denormalizeLAFs(
LAFs, img.size(3), img.size(2)),
PS=AffNetPix.PS)
if WRITE_IMGS_DEBUG:
SaveImageWithKeys(patch.detach().cpu().numpy().reshape([32, 32]),
[], 'p2/' + str(n) + '.png')
if USE_CUDA:
# or ---> A = AffNetPix(subpatches.cuda()).cpu()
with torch.no_grad():
A = batched_forward(AffNetPix, patch.cuda(), 256).cpu()
else:
with torch.no_grad():
A = AffNetPix(patch)
new_LAFs = torch.cat([torch.bmm(A, LAFs[:, :, 0:2]), LAFs[:, :, 2:]],
dim=2)
dLAFs = denormalizeLAFs(new_LAFs, img.size(3), img.size(2))
with torch.no_grad():
patchaff = HessianAffine.extract_patches_from_pyr(dLAFs, PS=32)
if WRITE_IMGS_DEBUG:
SaveImageWithKeys(
patchaff.detach().cpu().numpy().reshape([32, 32]), [],
'p1/' + str(n) + '.png')
SaveImageWithKeys(img_np, [kp], 'im1/' + str(n) + '.png')
descriptors.append(
HardNetDescriptor(patchaff).cpu().numpy().astype(np.float32))
Alist.append(
convertLAFs_to_A23format(LAFs.detach().cpu().numpy().astype(
np.float32)))
n = n + 1
return descriptors, Alist
def test(model,epoch):
torch.cuda.empty_cache()
# switch to evaluate mode
model.eval()
from architectures import AffNetFast
affnet = AffNetFast()
model_weights = 'pretrained/AffNet.pth'
hncheckpoint = torch.load(model_weights)
affnet.load_state_dict(hncheckpoint['state_dict'])
affnet.eval()
detector = ScaleSpaceAffinePatchExtractor( mrSize = 5.192, num_features = 3000,
border = 5, num_Baum_iters = 1,
AffNet = affnet, OriNet = model)
descriptor = HardNet()
model_weights = 'HardNet++.pth'
hncheckpoint = torch.load(model_weights)
descriptor.load_state_dict(hncheckpoint['state_dict'])
descriptor.eval()
if args.cuda:
detector = detector.cuda()
descriptor = descriptor.cuda()
input_img_fname1 = 'test-graf/img1.png'#sys.argv[1]
input_img_fname2 = 'test-graf/img6.png'#sys.argv[1]
H_fname = 'test-graf/H1to6p'#sys.argv[1]
output_img_fname = 'graf_match.png'#sys.argv[3]
img1 = load_grayscale_var(input_img_fname1)
img2 = load_grayscale_var(input_img_fname2)
H = np.loadtxt(H_fname)
H1to2 = Variable(torch.from_numpy(H).float())
SNN_threshold = 0.8
with torch.no_grad():
LAFs1, descriptors1 = get_geometry_and_descriptors(img1, detector, descriptor)
torch.cuda.empty_cache()
LAFs2, descriptors2 = get_geometry_and_descriptors(img2, detector, descriptor)
visualize_LAFs(img1.detach().cpu().numpy().squeeze(), LAFs1.detach().cpu().numpy().squeeze(), 'b', show = False, save_to = LOG_DIR + "/detections1_" + str(epoch) + '.png')
visualize_LAFs(img2.detach().cpu().numpy().squeeze(), LAFs2.detach().cpu().numpy().squeeze(), 'g', show = False, save_to = LOG_DIR + "/detection2_" + str(epoch) + '.png')
dist_matrix = distance_matrix_vector(descriptors1, descriptors2)
min_dist, idxs_in_2 = torch.min(dist_matrix,1)
dist_matrix[:,idxs_in_2] = 100000;# mask out nearest neighbour to find second nearest
min_2nd_dist, idxs_2nd_in_2 = torch.min(dist_matrix,1)
mask = (min_dist / (min_2nd_dist + 1e-8)) <= SNN_threshold
tent_matches_in_1 = indxs_in1 = torch.autograd.Variable(torch.arange(0, idxs_in_2.size(0)), requires_grad = False).cuda()[mask]
tent_matches_in_2 = idxs_in_2[mask]
tent_matches_in_1 = tent_matches_in_1.long()
tent_matches_in_2 = tent_matches_in_2.long()
LAF1s_tent = LAFs1[tent_matches_in_1,:,:]
LAF2s_tent = LAFs2[tent_matches_in_2,:,:]
min_dist, plain_indxs_in1, idxs_in_2 = get_GT_correspondence_indexes(LAF1s_tent, LAF2s_tent,H1to2.cuda(), dist_threshold = 6)
plain_indxs_in1 = plain_indxs_in1.long()
inl_ratio = float(plain_indxs_in1.size(0)) / float(tent_matches_in_1.size(0))
print 'Test epoch', str(epoch)
print 'Test on graf1-6,', tent_matches_in_1.size(0), 'tentatives', plain_indxs_in1.size(0), 'true matches', str(inl_ratio)[:5], ' inl.ratio'
visualize_LAFs(img1.detach().cpu().numpy().squeeze(), LAF1s_tent[plain_indxs_in1.long(),:,:].detach().cpu().numpy().squeeze(), 'g', show = False, save_to = LOG_DIR + "/inliers1_" + str(epoch) + '.png')
visualize_LAFs(img2.detach().cpu().numpy().squeeze(), LAF2s_tent[idxs_in_2.long(),:,:].detach().cpu().numpy().squeeze(), 'g', show = False, save_to = LOG_DIR + "/inliers2_" + str(epoch) + '.png')
return
print 'skip'
continue
loss = fro_dists.mean()
total_feats += fro_dists.size(0)
total_loss += loss.data.cpu().numpy()[0]
print 'test img', batch_idx, loss.data.cpu().numpy(
)[0], fro_dists.size(0)
print 'Total loss:', total_loss / float(batch_idx + 1), 'features', float(
total_feats) / float(batch_idx + 1)
train_loader, test_loader = create_loaders()
HA = ScaleSpaceAffinePatchExtractor(mrSize=3.0,
num_features=350,
border=5,
num_Baum_iters=1,
AffNet=BaumResNet())
model = HA
if USE_CUDA:
model = model.cuda()
optimizer1 = create_optimizer(model.AffNet.features, BASE_LR, 5e-5)
test(test_loader, model, cuda=USE_CUDA)
for epoch in range(n_epochs):
print 'epoch', epoch
if USE_CUDA:
model = model.cuda()
train(train_loader, model, optimizer1, epoch, cuda=USE_CUDA)
continue
loss = fro_dists.mean()
total_feats += fro_dists.size(0)
total_loss += loss.data.cpu().numpy()[0]
print 'test img', batch_idx, loss.data.cpu().numpy(
)[0], fro_dists.size(0)
print 'Total loss:', total_loss / float(batch_idx + 1), 'features', float(
total_feats) / float(batch_idx + 1)
model.num = model_num_feats
train_loader, test_loader = create_loaders()
HA = ScaleSpaceAffinePatchExtractor(mrSize=5.192,
num_features=350,
border=5,
num_Baum_iters=2,
AffNet=BaumNet())
model = HA
if USE_CUDA:
model = model.cuda()
optimizer1 = create_optimizer(model.AffNet.features, BASE_LR, 5e-5)
#test(test_loader, model, cuda = USE_CUDA)
for epoch in range(n_epochs):
print 'epoch', epoch
if USE_CUDA:
model = model.cuda()
train(train_loader, model, optimizer1, epoch, cuda=USE_CUDA)
LAFs1, aff_norm_patches1, resp1, pyr1 = HA(img1 / 255.)
LAFs2, aff_norm_patches2, resp2, pyr2 = HA(img2 / 255.)
if (len(LAFs1) == 0) or (len(LAFs2) == 0):
continue
fro_dists, idxs_in1, idxs_in2 = get_GT_correspondence_indexes_Fro(LAFs1, LAFs2, H, dist_threshold = 10, use_cuda = cuda);
if len(fro_dists.size()) == 0:
print 'skip'
continue
loss = fro_dists.mean()
total_loss += loss.data.cpu().numpy()[0]
print 'test img', batch_idx, loss.data.cpu().numpy()[0]
print 'Total loss:', total_loss / float(batch_idx+1)
train_loader, test_loader = create_loaders()
HA = ScaleSpaceAffinePatchExtractor( mrSize = 5.0, num_features = 3000, border = 1, num_Baum_iters = 5, AffNet = BaumNet())
model = HA
if USE_CUDA:
model = model.cuda()
optimizer1 = create_optimizer(model.AffShape, BASE_LR, 5e-5)
start = 0
end = 100
for epoch in range(start, end):
print 'epoch', epoch
if USE_CUDA:
model = model.cuda()
img = np.mean(np.array(img), axis=2)
var_image = torch.autograd.Variable(torch.from_numpy(img.astype(np.float32)),
volatile=True)
var_image_reshape = var_image.view(1, 1, var_image.size(0), var_image.size(1))
AffNetPix = AffNetFast(PS=32)
weightd_fname = '../../pretrained/AffNet.pth'
checkpoint = torch.load(weightd_fname)
AffNetPix.load_state_dict(checkpoint['state_dict'])
AffNetPix.eval()
HA = ScaleSpaceAffinePatchExtractor(mrSize=5.192,
num_features=nfeats,
border=5,
num_Baum_iters=1,
th=th,
AffNet=AffNetPix)
if USE_CUDA:
HA = HA.cuda()
var_image_reshape = var_image_reshape.cuda()
with torch.no_grad():
LAFs, resp = HA(var_image_reshape)
ells = LAFs2ell(LAFs.data.cpu().numpy())
np.savetxt(output_fname, ells, delimiter=' ', fmt='%10.10f')
line_prepender(output_fname, str(len(ells)))
line_prepender(output_fname, '1.0')
def AffNetHardNet_describe(patches):
descriptors = np.zeros(shape=[patches.shape[0], 128], dtype=np.float32)
HessianAffine = []
subpatches = torch.autograd.Variable(torch.zeros([len(patches), 1, 32, 32],
dtype=torch.float32),
volatile=True).view(
len(patches), 1, 32, 32)
baseLAFs = torch.zeros([len(patches), 2, 3], dtype=torch.float32)
for m in range(patches.shape[0]):
patch_np = patches[m, :, :, 0].reshape(np.shape(patches)[1:3])
HessianAffine.append(
ScaleSpaceAffinePatchExtractor(mrSize=5.192,
num_features=0,
border=0,
num_Baum_iters=0))
with torch.no_grad():
var_image = torch.autograd.Variable(torch.from_numpy(
patch_np.astype(np.float32)),
volatile=True)
patch = var_image.view(1, 1, var_image.size(0), var_image.size(1))
with torch.no_grad():
HessianAffine[m].createScaleSpace(
patch) # to generate scale pyramids and stuff
x, y = patch.size(3) / 2.0 + 2, patch.size(2) / 2.0 + 2
LAFs = normalizeLAFs(
torch.tensor([[AffNetPix.PS / 2, 0, x], [0, AffNetPix.PS / 2,
y]]).reshape(1, 2, 3),
patch.size(3), patch.size(2))
baseLAFs[m, :, :] = LAFs
with torch.no_grad():
subpatch = HessianAffine[m].extract_patches_from_pyr(
denormalizeLAFs(LAFs, patch.size(3), patch.size(2)),
PS=AffNetPix.PS)
if WRITE_IMGS_DEBUG:
SaveImageWithKeys(
subpatch.detach().cpu().numpy().reshape([32, 32]), [],
'p1/' + str(n) + '.png')
# This subpatch has been blured by extract_patches _from_pyr...
# let't us crop it manually to obtain fair results agains other methods
subpatch = patch_np[16:48, 16:48].reshape(1, 1, 32, 32)
#var_image = torch.autograd.Variable(torch.from_numpy(subpatch.astype(np.float32)), volatile = True)
#subpatch = var_image.view(1, 1, 32,32)
subpatches[m, :, :, :] = torch.from_numpy(
subpatch.astype(np.float32)) #=subpatch
if WRITE_IMGS_DEBUG:
SaveImageWithKeys(
subpatch.detach().cpu().numpy().reshape([32, 32]), [],
'p2/' + str(n) + '.png')
if USE_CUDA:
# or ---> A = AffNetPix(subpatches.cuda()).cpu()
with torch.no_grad():
A = batched_forward(AffNetPix, subpatches.cuda(), 256).cpu()
else:
with torch.no_grad():
A = AffNetPix(subpatches)
LAFs = torch.cat([torch.bmm(A, baseLAFs[:, :, 0:2]), baseLAFs[:, :, 2:]],
dim=2)
dLAFs = denormalizeLAFs(LAFs, patch.size(3), patch.size(2))
Alist = convertLAFs_to_A23format(dLAFs.detach().cpu().numpy().astype(
np.float32))
for m in range(patches.shape[0]):
with torch.no_grad():
patchaff = HessianAffine[m].extract_patches_from_pyr(
dLAFs[m, :, :].reshape(1, 2, 3), PS=32)
if WRITE_IMGS_DEBUG:
SaveImageWithKeys(
patchaff.detach().cpu().numpy().reshape([32, 32]), [],
'im1/' + str(n) + '.png')
SaveImageWithKeys(patch_np, [], 'im2/' + str(n) + '.png')
subpatches[m, :, :, :] = patchaff
if USE_CUDA:
with torch.no_grad():
# descriptors = HardNetDescriptor(subpatches.cuda()).detach().cpu().numpy().astype(np.float32)
descriptors = batched_forward(HardNetDescriptor, subpatches.cuda(),
256).cpu().numpy().astype(np.float32)
else:
with torch.no_grad():
descriptors = HardNetDescriptor(
subpatches).detach().cpu().numpy().astype(np.float32)
return descriptors, Alist
hncheckpoint = torch.load(model_weights)
d2.load_state_dict(hncheckpoint['state_dict'])
d2.eval()
d3 = SIFTNet(patch_size=32)
model_weights = 'HardTFeat.pth'
d4 = HardTFeatNet(sm=SIFTNet(patch_size=32))
checkpoint = torch.load(model_weights)
d4.load_state_dict(checkpoint['state_dict'])
d4 = nn.Sequential(d4, L2Norm())
desc_list = [d1, d2, d3, d4]
desc_names = ['Pixels', 'HardNet', 'SIFT', 'TFeat']
USE_CUDA = False
detector = ScaleSpaceAffinePatchExtractor(mrSize=5.12,
num_features=200,
border=32,
num_Baum_iters=0)
descriptor = HardNet()
model_weights = '../../HardNet++.pth'
hncheckpoint = torch.load(model_weights)
descriptor.load_state_dict(hncheckpoint['state_dict'])
descriptor.eval()
if USE_CUDA:
detector = detector.cuda()
descriptor = descriptor.cuda()
def get_geometry(img, det):
with torch.no_grad():
LAFs, resp = det(img)
return LAFs #, descriptors
fro_dists, idxs_in1, idxs_in2 = get_GT_correspondence_indexes_Fro(
LAFs1, LAFs2, H1to2, dist_threshold=10, use_cuda=cuda)
if len(fro_dists.size()) == 0:
print 'skip'
continue
loss = fro_dists.mean()
total_loss += loss.data.cpu().numpy()[0]
print 'test img', batch_idx, loss.data.cpu().numpy()[0]
print 'Total loss:', total_loss / float(batch_idx + 1)
train_loader, test_loader = create_loaders()
HA = ScaleSpaceAffinePatchExtractor(mrSize=3.0,
num_features=500,
border=5,
num_Baum_iters=1,
AffNet=BaumNet(),
use_cuda=USE_CUDA)
model = HA
if USE_CUDA:
model = model.cuda()
optimizer1 = create_optimizer(model.AffNet, BASE_LR, 5e-5)
start = 0
end = 100
for epoch in range(start, end):
print 'epoch', epoch
if USE_CUDA:
model = model.cuda()
H1to2 = H1to2.cpu()
model = model.cuda()
if (len(LAFs1) == 0) or (len(LAFs2) == 0):
continue
fro_dists, idxs_in1, idxs_in2 = get_GT_correspondence_indexes_Fro_and_center(LAFs1,LAFs2, H1to2,
dist_threshold = 3.,
scale_diff_coef = 0.4,
center_dist_th = 7.0,
skip_center_in_Fro = True,
do_up_is_up = True);
if len(fro_dists.size()) == 0:
print 'skip'
continue
loss = fro_dists.mean()
total_loss += loss.data.cpu().numpy()[0]
total_feats += fro_dists.size(0)
print 'test img', batch_idx, loss.data.cpu().numpy()[0], fro_dists.size(0)
print 'Total loss:', total_loss / float(batch_idx+1), 'features', float(total_feats) / float(batch_idx+1)
train_loader, test_loader = create_loaders()
HA = ScaleSpaceAffinePatchExtractor( mrSize = 5.192, num_features = 1500, border = 5, num_Baum_iters = 0)
model = HA
if USE_CUDA:
model = model.cuda()
test(test_loader, model, cuda = USE_CUDA)
sys.exit(0)
input_img_fname = sys.argv[1]
output_fname = sys.argv[2]
nfeats = int(sys.argv[3])
except:
print "Wrong input format. Try python hesaffBaum.py imgs/cat.png cat.txt 2000"
sys.exit(1)
img = Image.open(input_img_fname).convert('RGB')
img = np.mean(np.array(img), axis=2)
var_image = torch.autograd.Variable(torch.from_numpy(img.astype(np.float32)),
volatile=True)
var_image_reshape = var_image.view(1, 1, var_image.size(0), var_image.size(1))
HA = ScaleSpaceAffinePatchExtractor(mrSize=5.192,
num_features=nfeats,
border=5,
num_Baum_iters=16,
threshold=th,
AffNet=AffineShapeEstimator(patch_size=19))
if USE_CUDA:
HA = HA.cuda()
var_image_reshape = var_image_reshape.cuda()
LAFs, resp = HA(var_image_reshape)
ells = LAFs2ell(LAFs.data.cpu().numpy())
np.savetxt(output_fname, ells, delimiter=' ', fmt='%10.10f')
line_prepender(output_fname, str(len(ells)))
line_prepender(output_fname, '1.0')