def train_test(model, optimizer, scheduler, dataloader, number_of_epochs,
break_point, saving_epoch, folder_name, batch_size, infr,
start_epoch, mean_best, visualize):
#### Creating the folder where the results would be stored##########
try:
os.mkdir(folder_name)
except OSError as exc:
if exc.errno != errno.EEXIST:
raise
pass
file_name = folder_name + '/' + 'result.pickle'
####################################################################
loss_epoch_train = []
loss_epoch_val = []
loss_epoch_test = []
initial_time = time.time()
result = []
##### Freeing out the cache memories from gpus and declaring the phases######
torch.cuda.empty_cache()
phases = ['train', 'test']
if infr == 't' and visualize == 'f': ### If running from a pretrained model only for saving best result ######
start_epoch = start_epoch - 1
phases = ['test']
end_of_epochs = start_epoch + 1
print('Only doing testing for storing result from a model')
elif visualize != 'f':
if visualize not in phases:
print(
"ERROR! Asked to show result from a unknown set.The choice should be among train,val,test"
)
return
else:
phases = [visualize]
end_of_epochs = start_epoch + 1
print('Only showing predictions from a model')
else:
end_of_epochs = start_epoch + number_of_epochs
##### Starting the Epochs#############
for epoch in range(start_epoch, end_of_epochs):
scheduler.step()
print('Epoch {}/{}'.format(epoch + 1, end_of_epochs))
print('-' * 10)
# print('Lr: {}'.format(scheduler.get_lr()))
initial_time_epoch = time.time()
for phase in phases:
if phase == 'train':
model.train()
else:
model.eval()
print('In {}'.format(phase))
detections_train = {}
detections_test = {}
true_scores_class = np.ones([1, 80], dtype=int)
true_scores = np.ones([1, no_of_classes], dtype=int)
true_scores_single = np.ones([1, 1], dtype=int)
predicted_scores = np.ones([1, no_of_classes], dtype=float)
predicted_scores_single = np.ones([1, 1], dtype=float)
predicted_scores_class = np.ones([1, 80], dtype=float)
acc_epoch = 0
iteration = 1
torch.cuda.empty_cache()
####Starting the iterations##################
for iterr, i in enumerate(tqdm(dataloader[phase])):
if iterr % 20 == 0:
torch.cuda.empty_cache()
inputs = i[0].to(device)
labels = i[1].to(device)
labels_single = i[2].to(device)
image_id = i[3]
pairs_info = i[4]
minbatch_size = len(pairs_info)
optimizer.zero_grad()
if phase == 'train':
nav = torch.tensor([[0, epoch]] * minbatch_size).to(device)
else:
nav = torch.tensor([[2, epoch]] * minbatch_size).to(device)
# import pdb;pdb.set_trace()
true = (labels.data).cpu().numpy()
true_single = (labels_single.data).cpu().numpy()
with torch.set_grad_enabled(phase == 'train'
or phase == 'val'):
model_out = model(inputs, pairs_info, pairs_info, image_id,
nav, phase)
#import pdb; pdb.set_trace()
outputs = model_out[0]
outputs_single = model_out[1]
outputs_combine = model_out[2]
outputs_gem = model_out[3]
predicted_HOI = sigmoid(outputs).data.cpu().numpy()
predicted_HOI_combine = sigmoid(
outputs_combine).data.cpu().numpy()
predicted_single = sigmoid(
outputs_single).data.cpu().numpy()
predicted_gem = sigmoid(outputs_gem).data.cpu().numpy()
predicted_HOI_pair = predicted_HOI
start_index = 0
start_obj = 0
start_pers = 0
start_tot = 0
pers_index = 1
persons_score_extended = np.zeros([1, 1])
objects_score_extended = np.zeros([1, 1])
class_ids_extended = np.zeros([1, 1])
persons_np_extended = np.zeros([1, 4])
objects_np_extended = np.zeros([1, 4])
start_no_obj = 0
class_ids_total = []
############# Extending Person and Object Boxes and confidence scores to Multiply with all Pairs##########
for batch in range(len(pairs_info)):
persons_score = []
objects_score = []
class_ids = []
objects_score.append(float(1))
this_image = int(image_id[batch])
scores_total = helpers_pre.get_compact_detections(
this_image, phase)
persons_score, objects_score, persons_np, objects_np, class_ids = scores_total[
'person_bbx_score'], \
scores_total[
'objects_bbx_score'], \
scores_total['person_bbx'], \
scores_total['objects_bbx'], \
scores_total[
'class_id_objects']
temp_scores = extend(
np.array(persons_score).reshape(
len(persons_score), 1),
int(pairs_info[batch][1]))
persons_score_extended = np.concatenate(
[persons_score_extended, temp_scores])
temp_scores = extend(persons_np,
int(pairs_info[batch][1]))
persons_np_extended = np.concatenate(
[persons_np_extended, temp_scores])
temp_scores = extend_object(
np.array(objects_score).reshape(
len(objects_score), 1),
int(pairs_info[batch][0]))
objects_score_extended = np.concatenate(
[objects_score_extended, temp_scores])
temp_scores = extend_object(objects_np,
int(pairs_info[batch][0]))
objects_np_extended = np.concatenate(
[objects_np_extended, temp_scores])
temp_scores = extend_object(
np.array(class_ids).reshape(len(class_ids), 1),
int(pairs_info[batch][0]))
class_ids_extended = np.concatenate(
[class_ids_extended, temp_scores])
class_ids_total.append(class_ids)
start_pers = start_pers + int(pairs_info[batch][0])
start_obj = start_obj + int(pairs_info[batch][1])
start_tot = start_tot + int(
pairs_info[batch][1]) * int(pairs_info[batch][0])
###################################################################################################################
#### Applying LIS#######
persons_score_extended = LIS(persons_score_extended, 8.3,
12, 10)
objects_score_extended = LIS(objects_score_extended, 8.3,
12, 10)
##################################
predicted_HOI = predicted_HOI * predicted_HOI_combine * predicted_single * predicted_gem * objects_score_extended[
1:] * persons_score_extended[1:]
index_mask = class_ids_extended[1:].reshape(
len(class_ids_extended[1:]), ).astype('int32')
loss_mask, count_weight = mask_t[index_mask], count_t[
index_mask]
predicted_HOI = loss_mask * predicted_HOI
#### Calculating Loss############
N_b = minbatch_size * no_of_classes # *int(total_elements[0])#*no_of_classes #pairs_info[1]*pairs_info[2]*pairs_info[3]
hum_obj_mask = torch.Tensor(objects_score_extended[1:] *
persons_score_extended[1:] *
loss_mask).cuda()
lossf = torch.sum(
loss_com_combine(
sigmoid(outputs) * sigmoid(outputs_combine) *
sigmoid(outputs_single) * hum_obj_mask *
sigmoid(outputs_gem), labels.float())) / N_b
lossc = lossf.item()
acc_epoch += lossc
iteration += 1
if phase == 'train' or phase == 'val': #### Flowing the loss backwards#########
lossf.backward()
optimizer.step()
###########################################################
del lossf
del model_out
del inputs
del outputs
del labels
####### If we want to do Visualization#########
if visualize != 'f':
viss.visual(image_id, phase, pairs_info, predicted_HOI,
predicted_single, objects_score_extended[1:],
persons_score_extended[1:],
predicted_HOI_combine, predicted_HOI_pair,
true)
#####################################################################
##### Preparing for Storing Results##########
predicted_scores = np.concatenate(
(predicted_scores, predicted_HOI), axis=0)
true_scores = np.concatenate((true_scores, true), axis=0)
predicted_scores_single = np.concatenate(
(predicted_scores_single, predicted_single), axis=0)
true_scores_single = np.concatenate(
(true_scores_single, true_single), axis=0)
#############################################
#### Storing the result in V-COCO Format##########
if phase == 'test':
if (epoch + 1) % saving_epoch == 0 or infr == 't':
all_scores = filtering(predicted_HOI, true,
persons_np_extended[1:],
objects_np_extended[1:],
predicted_single, pairs_info,
image_id,
class_ids_extended[1:])
# prep.infer_format(image_id,all_scores,phase,detections_test,pairs_info)
proper.infer_format(image_id, all_scores, phase,
detections_test, pairs_info)
######################################################
## Breaking in particular number of epoch####
if iteration == break_point + 1:
break
#############################################
if phase == 'train':
loss_epoch_train.append((acc_epoch))
AP, AP_single = ap.class_AP(predicted_scores[1:, :],
true_scores[1:, :],
predicted_scores_single[1:, ],
true_scores_single[1:, ])
AP_train = pd.DataFrame(AP,
columns=['Name_TRAIN', 'Score_TRAIN'])
AP_train_single = pd.DataFrame(
AP_single, columns=['Name_TRAIN', 'Score_TRAIN'])
elif phase == 'test':
loss_epoch_test.append((acc_epoch))
AP, AP_single = ap.class_AP(predicted_scores[1:, :],
true_scores[1:, :],
predicted_scores_single[1:, ],
true_scores_single[1:, ])
AP_test = pd.DataFrame(AP, columns=['Name_TEST', 'Score_TEST'])
AP_test_single = pd.DataFrame(
AP_single, columns=['Name_TEST', 'Score_TEST'])
if (epoch + 1) % saving_epoch == 0 or infr == 't':
file_name_p = folder_name + '/' + 'test.pickle'.format(
epoch + 1)
with open(file_name_p, 'wb') as handle:
pickle.dump(detections_test, handle)
###### Saving the Model###########
mean = AP_test.to_records(index=False)[no_of_classes][1]
####Best Model######
if mean > mean_best and infr != 't':
mean_best = mean
save_checkpoint(
{
'epoch': epoch + 1,
'state_dict': model.state_dict(),
'mean_best': mean_best,
'optimizer': optimizer.state_dict(),
'scheduler': scheduler.state_dict()
},
filename=folder_name + '/' + 'bestcheckpoint.pth.tar')
###############################
if (epoch + 1) % saving_epoch == 0 and infr != 't':
save_checkpoint(
{
'epoch': epoch + 1,
'state_dict': model.state_dict(),
'mean_best': mean_best,
'optimizer': optimizer.state_dict(),
'scheduler': scheduler.state_dict()
},
filename=folder_name + '/' + str(epoch + 1) +
'checkpoint.pth.tar')
#####################################
if infr == 't':
AP_final = pd.concat([AP_test], axis=1)
AP_final_single = pd.concat([AP_test_single], axis=1)
result.append(AP_final)
else:
AP_final = pd.concat([AP_train, AP_test], axis=1)
AP_final_single = pd.concat([AP_train_single, AP_test_single],
axis=1)
##### This file will store each epoch result in a pickle format####
with open(file_name, 'wb') as handle:
pickle.dump(result, handle)
time_elapsed = time.time() - initial_time_epoch
print('APs in EPOCH:{}'.format(epoch + 1))
print(AP_final)
print(AP_final_single)
#post_test.send_message_to_slack(AP_final)
#post_test.send_message_to_slack(AP_final_single)
try:
print('Loss_train:{},Loss_test:{}'.format(
loss_epoch_train[epoch - start_epoch],
loss_epoch_test[epoch - start_epoch]))
#post_test.send_message_to_slack('Loss_train:{},Loss_test:{}'.format(loss_epoch_train[epoch - start_epoch],
# loss_epoch_test[epoch - start_epoch]))
except:
print('Loss_test:{}'.format(loss_epoch_test[epoch - start_epoch]))
print('This epoch completes in {:.0f}m {:.06f}s'.format(
time_elapsed // 60, time_elapsed % 60))
if infr == 't':
break
time_elapsed = time.time() - initial_time
print('The whole process runs for {:.0f}h {:.0f}m {:0f}s'.format(
time_elapsed // 3600, (time_elapsed % 3600) // 60,
((time_elapsed % 3600) % 60) % 60))
return
def train_test(
model,
optimizer,
scheduler,
dataloader,
number_of_epochs,
break_point,
saving_epoch,
folder_name,
batch_size,
infr,
start_epoch,
mean_best,
visualize,
):
global positive_count, negative_count
#### Creating the folder where the results would be stored##########
try:
os.mkdir(folder_name)
except OSError as exc:
if exc.errno != errno.EEXIST:
raise
pass
file_name = folder_name + '/' + 'result.pickle'
####################################################################
loss_epoch_train = []
loss_epoch_val = []
loss_epoch_test = []
initial_time = time.time()
result = []
lst_feat_vis = []
lst_feat_int = []
lst_feat_grp = []
lst_feat_att = []
lst_label = []
# #### Freeing out the cache memories from gpus and declaring the phases######
torch.cuda.empty_cache()
phases = ['train', 'val', 'test']
if infr == 't' and visualize == 'f': # ## If running from a pretrained model only for saving best result ######
start_epoch = start_epoch - 1
phases = ['test']
end_of_epochs = start_epoch + 1
print('Only doing testing for storing result from a model')
elif visualize != 'f':
if visualize not in phases:
print(
'ERROR! Asked to show result from a unknown set.The choice should be among train,val,test'
)
return
else:
phases = [visualize]
end_of_epochs = start_epoch + 1
print('Only showing predictions from a model')
else:
end_of_epochs = start_epoch + number_of_epochs
# #### Starting the Epochs#############
#----Save seed model-------------------------
save_checkpoint(
{
'epoch': 'seed',
'state_dict': model.state_dict(),
'mean_best': mean_best,
'optimizer': optimizer.state_dict(),
'scheduler': scheduler.state_dict(),
},
filename=folder_name + '/' + 'seed_' + 'checkpoint.pth.tar')
#--------------------------------------------
for epoch in range(start_epoch, end_of_epochs):
scheduler.step()
print('Epoch {}/{}'.format(epoch + 1, end_of_epochs))
print('-' * 10)
print('Lr: {}'.format(scheduler.get_lr()))
initial_time_epoch = time.time()
for phase in phases:
if phase == 'train':
model.train()
elif phase == 'val':
model.train()
else:
model.eval()
print('In {}'.format(phase))
detections_train = []
detections_val = []
detections_test = []
true_scores_class = np.ones([1, 80], dtype=int)
true_scores = np.ones([1, 29], dtype=int)
true_scores_single = np.ones([1, 1], dtype=int)
predicted_scores = np.ones([1, 29], dtype=float)
predicted_scores_single = np.ones([1, 1], dtype=float)
predicted_scores_class = np.ones([1, 80], dtype=float)
acc_epoch = 0
iteration = 1
torch.cuda.empty_cache()
# ###Starting the iterations##################
for (iterr, i) in enumerate(tqdm(dataloader[phase])):
if iterr % 20 == 0:
torch.cuda.empty_cache()
inputs = i[0].to(device)
labels = i[1].to(device)
labels_single = i[2].to(device)
image_id = i[3]
pairs_info = i[4]
ambiguity_score = i[5]
class_dist = i[6]
class_bias = i[7]
minbatch_size = len(pairs_info)
optimizer.zero_grad()
if phase == 'train':
nav = torch.tensor([[0, epoch]] * minbatch_size).to(device)
elif phase == 'val':
nav = torch.tensor([[1, epoch]] * minbatch_size).to(device)
else:
nav = torch.tensor([[2, epoch]] * minbatch_size).to(device)
# import pdb;pdb.set_trace()........
true = labels.data.cpu().numpy()
true_single = labels_single.data.cpu().numpy()
with torch.set_grad_enabled(phase == 'train'
or phase == 'val'):
model_out = model(
inputs,
pairs_info,
pairs_info,
image_id,
nav,
phase,
)
outputs = model_out[0]
outputs_single = model_out[1]
outputs_combine = model_out[2]
outputs_gem = model_out[3]
# if infr == 't' and phase == 'test':
# if phase == 'train' or phase == 'val':
# # out_feat_vis = model_out[4].cpu().numpy()
# # out_feat_int = model_out[5].cpu().numpy()
# # out_feat_grp = model_out[6].cpu().numpy()
# # out_feat_att = model_out[7].cpu().numpy()
# out_labels = labels.cpu().numpy()
# elim_label = labels.sum(1).cpu().numpy()
# elim_idx = np.where(elim_label==0)[0]
# # out_feat_vis = np.delete(out_feat_vis, elim_idx, axis=0)
# # out_feat_int = np.delete(out_feat_int, elim_idx, axis=0)
# # out_feat_grp = np.delete(out_feat_grp, elim_idx, axis=0)
# # out_feat_att = np.delete(out_feat_att, elim_idx, axis=0)
# out_label = np.delete(out_labels, elim_idx, axis=0)
# # lst_feat_vis.append(out_feat_vis)
# # lst_feat_int.append(out_feat_int)
# # lst_feat_grp.append(out_feat_grp)
# # lst_feat_att.append(out_feat_att)
# lst_label.append(out_label)
# print(len(lst_label))
# outputs_pose=model_out[7]
predicted_HOI = sigmoid(outputs).data.cpu().numpy()
predicted_HOI_combine = \
sigmoid(outputs_combine).data.cpu().numpy()
predicted_single = \
sigmoid(outputs_single).data.cpu().numpy()
predicted_gem = \
sigmoid(outputs_gem).data.cpu().numpy()
predicted_HOI_pair = predicted_HOI
# predicted_HOI_pose=sigmoid(outputs_pose).data.cpu().numpy()
start_index = 0
start_obj = 0
start_pers = 0
start_tot = 0
pers_index = 1
persons_score_extended = np.zeros([1, 1])
objects_score_extended = np.zeros([1, 1])
class_ids_extended = np.zeros([1, 1])
persons_np_extended = np.zeros([1, 4])
objects_np_extended = np.zeros([1, 4])
start_no_obj = 0
class_ids_total = []
# ############ Extending Person and Object Boxes and confidence scores to Multiply with all Pairs##########
for batch in range(len(pairs_info)):
persons_score = []
objects_score = []
class_ids = []
objects_score.append(float(1))
this_image = int(image_id[batch])
scores_total = \
helpers_pre.get_compact_detections(this_image,
phase)
(persons_score, objects_score, persons_np,
objects_np, class_ids) = \
(scores_total['person_bbx_score'],
scores_total['objects_bbx_score'],
scores_total['person_bbx'],
scores_total['objects_bbx'],
scores_total['class_id_objects'])
temp_scores = \
extend(np.array(persons_score).reshape(len(persons_score),
1), int(pairs_info[batch][1]))
persons_score_extended = \
np.concatenate([persons_score_extended,
temp_scores])
temp_scores = extend(persons_np,
int(pairs_info[batch][1]))
persons_np_extended = \
np.concatenate([persons_np_extended,
temp_scores])
temp_scores = \
extend_object(np.array(objects_score).reshape(len(objects_score),
1), int(pairs_info[batch][0]))
objects_score_extended = \
np.concatenate([objects_score_extended,
temp_scores])
temp_scores = extend_object(objects_np,
int(pairs_info[batch][0]))
objects_np_extended = \
np.concatenate([objects_np_extended,
temp_scores])
temp_scores = \
extend_object(np.array(class_ids).reshape(len(class_ids),
1), int(pairs_info[batch][0]))
class_ids_extended = \
np.concatenate([class_ids_extended,
temp_scores])
class_ids_total.append(class_ids)
start_pers = start_pers \
+ int(pairs_info[batch][0])
start_obj = start_obj \
+ int(pairs_info[batch][1])
start_tot = start_tot \
+ int(pairs_info[batch][1]) \
* int(pairs_info[batch][0])
# ##################################################################################################################
# ### Applying LIS#######
persons_score_extended = \
LIS(persons_score_extended, 8.3, 12, 10)
objects_score_extended = \
LIS(objects_score_extended, 8.3, 12, 10)
# #################################
# #### Multiplying the score from different streams along with the prior function from ican##########
predicted_HOI = predicted_HOI \
* predicted_HOI_combine * predicted_single \
* predicted_gem * objects_score_extended[1:] \
* persons_score_extended[1:]
loss_mask = \
prior.apply_prior(class_ids_extended[1:],
predicted_HOI)
predicted_HOI = loss_mask * predicted_HOI
# ### Calculating Loss############
N_b = minbatch_size * 29 # *int(total_elements[0])#*29 #pairs_info[1]*pairs_info[2]*pairs_info[3]
hum_obj_mask = \
torch.Tensor(objects_score_extended[1:]
* persons_score_extended[1:]
* loss_mask).cuda()
# if epoch < 12:
# lossf = torch.sum(loss_com_combine(sigmoid(outputs)
# * sigmoid(outputs_combine)
# * sigmoid(outputs_single) * hum_obj_mask
# * sigmoid(outputs_gem), labels.float())) \
# / N_b
#----------------Modified Loss---------------------------------
# Binary Cross Entropy
# else:
# lossf = torch.sum(
# loss_com_balanced(
# {'outputs':outputs, 'outputs_combine':outputs_combine,
# 'outputs_single':outputs_single, 'outputs_gem':outputs_gem,
# 'hum_obj_mask':hum_obj_mask},
# labels.float(),
# ambiguity_score,
# class_dist,
# class_bias)) \
# / N_b
# Focal Loss
lossf = torch.sum(loss_com_focal_balanced(sigmoid(outputs)
* sigmoid(outputs_combine)
* sigmoid(outputs_single) * hum_obj_mask
* sigmoid(outputs_gem), labels.float())) \
/ N_b
#--------------------------------------------------------------
lossc = lossf.item()
acc_epoch += lossc
iteration += 1
if phase == 'train' or phase == 'val': # ### Flowing the loss backwards#########
lossf.backward()
optimizer.step()
# ##########################################################
del lossf
del model_out
del inputs
del outputs
del labels
del labels_single
del ambiguity_score
del class_dist
del class_bias
# ###### If we want to do Visualization#########....
if visualize != 'f':
viss.visual(
image_id,
phase,
pairs_info,
predicted_HOI,
predicted_single,
objects_score_extended[1:],
persons_score_extended[1:],
predicted_HOI_combine,
predicted_HOI_pair,
true,
)
# ####################################################################
# #### Preparing for Storing Results##########....
predicted_scores = np.concatenate(
(predicted_scores, predicted_HOI), axis=0)
true_scores = np.concatenate((true_scores, true), axis=0)
predicted_scores_single = \
np.concatenate((predicted_scores_single,
predicted_single), axis=0)
true_scores_single = \
np.concatenate((true_scores_single, true_single),
axis=0)
# ############################################
# ### Storing the result in V-COCO Format##########
if phase == 'test':
if (epoch + 1) % saving_epoch == 0 or infr == 't':
all_scores = filtering(
predicted_HOI,
true,
persons_np_extended[1:],
objects_np_extended[1:],
predicted_single,
pairs_info,
image_id,
)
# prep.infer_format(image_id,all_scores,phase,detections_test,pairs_info)
proper.infer_format(image_id, all_scores, phase,
detections_test, pairs_info)
# #####################################################........
# # Breaking in particular number of epoch####
if iteration == break_point + 1:
break
# ############################################
if phase == 'train':
loss_epoch_train.append(acc_epoch)
(AP, AP_single) = ap.class_AP(predicted_scores[1:, :],
true_scores[1:, :],
predicted_scores_single[1:],
true_scores_single[1:])
AP_train = pd.DataFrame(AP,
columns=['Name_TRAIN', 'Score_TRAIN'])
AP_train_single = pd.DataFrame(
AP_single, columns=['Name_TRAIN', 'Score_TRAIN'])
elif phase == 'val':
loss_epoch_val.append(acc_epoch)
(AP, AP_single) = ap.class_AP(predicted_scores[1:, :],
true_scores[1:, :],
predicted_scores_single[1:],
true_scores_single[1:])
AP_val = pd.DataFrame(AP, columns=['Name_VAL', 'Score_VAL'])
AP_val_single = pd.DataFrame(AP_single,
columns=['Name_VAL', 'Score_VAL'])
elif phase == 'test':
loss_epoch_test.append(acc_epoch)
(AP, AP_single) = ap.class_AP(predicted_scores[1:, :],
true_scores[1:, :],
predicted_scores_single[1:],
true_scores_single[1:])
AP_test = pd.DataFrame(AP, columns=['Name_TEST', 'Score_TEST'])
AP_test_single = pd.DataFrame(
AP_single, columns=['Name_TEST', 'Score_TEST'])
if (epoch + 1) % saving_epoch == 0 or infr == 't':
file_name_p = folder_name + '/' \
+ 'test{}.pickle'.format(epoch + 1)
with open(file_name_p, 'wb') as handle:
pickle.dump(detections_test, handle)
# Save feature
# if infr == 't' and phase == 'test':
# np.save(folder_name+'/feat_vis', np.vstack(lst_feat_vis))
# np.save(folder_name+'/feat_int', np.vstack(lst_feat_int))
# np.save(folder_name+'/feat_grp', np.vstack(lst_feat_grp))
# np.save(folder_name+'/feat_att', np.vstack(lst_feat_att))
# np.save(folder_name+'/labels_train', np.vstack(lst_label))
# print('Saved.')
# ##### Saving the Model###########
mean = AP_test.to_records(index=False)[29][1]
# ###Best Model######
if mean > mean_best and infr != 't':
mean_best = mean
save_checkpoint(
{
'epoch': epoch + 1,
'state_dict': model.state_dict(),
'mean_best': mean_best,
'optimizer': optimizer.state_dict(),
'scheduler': scheduler.state_dict(),
},
filename=folder_name + '/' + 'bestcheckpoint.pth.tar')
# ##############################
if (epoch + 1) % saving_epoch == 0 and infr != 't':
save_checkpoint(
{
'epoch': epoch + 1,
'state_dict': model.state_dict(),
'mean_best': mean_best,
'optimizer': optimizer.state_dict(),
'scheduler': scheduler.state_dict(),
},
filename=folder_name + '/' + str(epoch + 1) +
'checkpoint.pth.tar')
# ####################################
if infr == 't':
AP_final = pd.concat([AP_test], axis=1)
AP_final_single = pd.concat([AP_test_single], axis=1)
result.append(AP_final)
else:
AP_final = pd.concat([AP_train, AP_val, AP_test], axis=1)
AP_final_single = pd.concat(
[AP_train_single, AP_val_single, AP_test_single], axis=1)
# #### This file will store each epoch result in a pickle format####
with open(file_name, 'wb') as handle:
pickle.dump(result, handle)
time_elapsed = time.time() - initial_time_epoch
print('APs in EPOCH:{}'.format(epoch + 1))
print(AP_final)
print(AP_final_single)
try:
print('Loss_train:{},Loss_validation:{},Loss_test:{}'.format(
loss_epoch_train[epoch - start_epoch],
loss_epoch_val[epoch - start_epoch],
loss_epoch_test[epoch - start_epoch]))
except:
print('Loss_test:{}'.format(loss_epoch_test[epoch - start_epoch]))
print('This epoch completes in {:.0f}m {:.06f}s'.format(
time_elapsed // 60, time_elapsed % 60))
if infr == 't':
break
time_elapsed = time.time() - initial_time
print('The whole process runs for {:.0f}h {:.0f}m {:0f}s'.format(
time_elapsed // 3600, time_elapsed % 3600 // 60,
time_elapsed % 3600 % 60 % 60))
return
def train_test(model, optimizer, scheduler, dataloader, num_epochs, batch_size,
start_epoch, mean_best):
writer = SummaryWriter('runs/VSGNet_exp_VSG')
loss_epoch_train = []
loss_epoch_val = []
loss_epoch_test = []
initial_time = time.time()
result = []
torch.cuda.empty_cache()
phases = ['train', 'val', 'test']
end_epoch = start_epoch + num_epochs
iteration = 0
for epoch in range(start_epoch, end_epoch):
# scheduler.step()
print('Epoch {}/{}'.format(epoch + 1, end_epoch))
print('-' * 10)
initial_time_epoch = time.time()
for phase in phases:
if phase == 'train':
model.train()
elif phase == 'val':
model.train()
else:
model.eval()
print('In {}'.format(phase))
detections_train = []
detections_val = []
detections_test = []
true_scores_class = np.ones([1, 80], dtype=int)
true_scores = np.ones([1, 29], dtype=int)
true_scores_single = np.ones([1, 1], dtype=int)
predicted_scores_class = np.ones([1, 80], dtype=float)
predicted_scores = np.ones([1, 29], dtype=float)
predicted_scores_single = np.ones([1, 1], dtype=float)
acc_epoch = 0
for iterr, i in enumerate(tqdm(dataloader[phase])):
if iterr % 20 == 0:
torch.cuda.empty_cache()
inputs = i[0].to(device)
labels = i[1].to(device)
labels_single = i[2].to(device)
image_id = i[3]
pairs_info = i[4]
minibatch_size = len(pairs_info)
optimizer.zero_grad()
if phase == 'train':
nav = torch.tensor([[0, epoch]] *
minibatch_size).to(device)
elif phase == 'val':
nav = torch.tensor([[1, epoch]] *
minibatch_size).to(device)
else:
nav = torch.tensor([[2, epoch]] *
minibatch_size).to(device)
true = (labels.data).cpu().numpy()
true_single = (labels_single.data).cpu().numpy()
with torch.set_grad_enabled(phase == 'train'
or phase == 'val'):
model_out = model(inputs, pairs_info, pairs_info, image_id,
nav, phase)
i_ho = model_out[0]
p_Ref = model_out[1]
p_Att = model_out[2]
p_Graph = model_out[3]
predicted_HOI = sigmoid(p_Ref).data.cpu().numpy()
predicted_single = sigmoid(i_ho).data.cpu().numpy()
predicted_HOI_Att = sigmoid(p_Att).data.cpu().numpy()
predicted_HOI_Graph = sigmoid(p_Graph).data.cpu().numpy()
predicted_HOI_pair = predicted_HOI
start_index = 0
start_obj = 0
start_pers = 0
start_tot = 0
pers_index = 1
persons_score_extended = np.zeros([1, 1])
objects_score_extended = np.zeros([1, 1])
class_ids_extended = np.zeros([1, 1])
persons_np_extended = np.zeros([1, 4])
objects_np_extended = np.zeros([1, 4])
start_no_obj = 0
class_ids_total = []
# extendind person and object boxes and confidence scores to multiply with all pairs (?)
for batch in range(len(pairs_info)):
persons_score = []
objects_score = []
class_ids = []
objects_score.append(float(1)) # no object
this_image = int(image_id[batch]) # image_id
scores_total = helpers_pre.get_compact_detections(
this_image, phase)
persons_score, objects_score, persons_np, objects_np, class_ids = \
scores_total['person_bbx_score'], scores_total['objects_bbx_score'], \
scores_total['person_bbx'], scores_total['objects_bbx'], \
scores_total['class_id_objects']
temp_scores = extend_person(
np.array(persons_score).reshape(
len(persons_score), 1),
int(pairs_info[batch][1])) # num_obj
persons_score_extended = np.concatenate(
[persons_score_extended, temp_scores])
temp_scores = extend_person(persons_np,
int(pairs_info[batch][1]))
persons_np_extended = np.concatenate(
[persons_np_extended, temp_scores])
temp_scores = extend_object(
np.array(objects_score).reshape(
len(objects_score), 1),
int(pairs_info[batch][0]))
objects_score_extended = np.concatenate(
[objects_score_extended, temp_scores])
temp_scores = extend_object(objects_np,
int(pairs_info[batch][0]))
objects_np_extended = np.concatenate(
[objects_np_extended, temp_scores])
temp_scores = extend_object(
np.array(class_ids).reshape(len(class_ids), 1),
int(pairs_info[batch][0]))
class_ids_extended = np.concatenate(
[class_ids_extended, temp_scores])
class_ids_total.append(class_ids)
persons_score_extended = LIS(persons_score_extended, 8.3,
12, 10)
objects_score_extended = LIS(objects_score_extended, 8.3,
12, 10)
predicted_HOI = predicted_HOI * predicted_single * \
predicted_HOI_Att * predicted_HOI_Graph * \
objects_score_extended[1:] * persons_score_extended[1:]
loss_mask = prior.apply_prior(class_ids_extended[1:],
predicted_HOI)
predicted_HOI = loss_mask * predicted_HOI
N_b = minibatch_size * 29
hum_obj_mask = torch.Tensor(objects_score_extended[1:] * \
persons_score_extended[1:] * loss_mask).cuda()
lossf = torch.sum( criterion(sigmoid(i_ho) * sigmoid(p_Ref) * sigmoid(p_Att)\
* sigmoid(p_Graph) * hum_obj_mask, labels.float()))/N_b
lossc = lossf.item()
acc_epoch += lossc
if phase == 'train' or phase == 'val':
lossf.backward()
optimizer.step()
iteration += 1
writer.add_scalar('training loss', lossc, iteration)
del lossf
del model_out
del inputs
del labels
#prepairing for storing results
predicted_scores = np.concatenate(
(predicted_scores, predicted_HOI), axis=0)
true_scores = np.concatenate((true_scores, true), axis=0)
predicted_scores_single = np.concatenate(
(predicted_scores_single, predicted_single), axis=0)
true_scores_single = np.concatenate(
(true_scores_single, true_single), axis=0)
if phase == 'test':
all_scores = filtering(predicted_HOI, true,
persons_np_extended[1:],
objects_np_extended[1:],
predicted_single, pairs_info,
image_id)
proper.infer_format(image_id, all_scores, phase,
detections_test, pairs_info)
if phase == 'test':
# loss_epoch_test.append((acc_epoch))
AP, AP_single = ap.class_AP(predicted_scores[1:,:], true_scores[1:,:], \
predicted_scores_single[1:,], true_scores_single[1:,])
AP_test = pd.DataFrame(AP, columns=['Name_TEST', 'Score_TEST'])
AP_test_single = pd.DataFrame(
AP_single, columns=['Name_TEST', 'Score_TEST'])
AP_final = pd.concat([AP_test], axis=1)
AP_final_single = pd.concat([AP_test_single], axis=1)
result.append(AP_final)
print('APs in epoch {}'.format(epoch + 1))
print(AP_final)
print(AP_final_single)