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FALcon_collect_samples_voc12.py
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FALcon_collect_samples_voc12.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Mon Jul 25 17:54:36 2022
@author: tibrayev
"""
import os
import numpy as np
import torch
import torch.nn as nn
import torch.nn.functional as F
import torch.utils.data as data_utils
from torchvision import datasets, transforms
from torchviz import make_dot
import matplotlib.pyplot as plt
import copy
import argparse
torch.set_printoptions(linewidth = 160)
np.set_printoptions(linewidth = 160)
np.set_printoptions(precision=4)
np.set_printoptions(suppress='True')
from FALcon_config_test_as_WSOL import FALcon_config
from FALcon_models_vgg import customizable_VGG as custom_vgg
from cls_models import choose_clsmodel
from utils.utils_dataloaders import get_dataloaders
from utils.utils_custom_tvision_functions import plot_curve, imshow, plotregions, plotspots, plotspots_at_regioncenters, region_iou, region_area
parser = argparse.ArgumentParser(description='Collect predicted and groundtruth samples', formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument('--start', default=1, type=int, help='The index of the first sample to collect')
parser.add_argument('--end', default=-1, type=int, help='The index of the last sample to collect')
global args
args = parser.parse_args()
#%% Instantiate parameters, dataloaders, and model
# Parameters
config_3 = FALcon_config
config_3_copy = {k: v for k, v in config_3.__dict__.items() if '__' not in k}
device = 'cuda' if torch.cuda.is_available() else 'cpu'
# SEED instantiation
SEED = config_3.seed
torch.manual_seed(SEED)
np.random.seed(SEED)
#random.seed(SEED)
torch.cuda.manual_seed_all(SEED)
torch.backends.cudnn.deterministic = True
torch.backends.cudnn.benchmark = False
# Dataloaders
dataset = get_dataloaders(config_3, loader_type=config_3.loader_type)
# Loss(es)
bce_loss = nn.BCEWithLogitsLoss()
ce_loss = nn.CrossEntropyLoss()
# FALcon (localization) model
model_3 = custom_vgg(config_3).to(device)
for p in model_3.parameters():
model_3.requires_grad_(False)
model_3.eval()
print("FALcon (localization) model:\n")
print(model_3)
# Logger dictionary
if not os.path.exists(config_3.save_dir): os.makedirs(config_3.save_dir)
#%% AVS-specific functions, methods, and parameters
from AVS_functions import extract_and_resize_glimpses_for_batch, get_grid, get_new_random_glimpses_for_batch
from torchvision.ops import nms
#%% Simplify the code.
def FALcon_from_init_glimpse_loc(config, locmodel, input_image, init_glimpse_loc, switch_location_th):
foveation_progress_per_glimpse_loc = []
glimpses_locs_dims = torch.zeros((input_image.shape[0], 4), dtype=torch.int).to(input_image.device)
glimpses_locs_dims[:, 0] = init_glimpse_loc[0] + 0.5 - (config.glimpse_size_grid[0]/2.0)
glimpses_locs_dims[:, 1] = init_glimpse_loc[1] + 0.5 - (config.glimpse_size_grid[1]/2.0)
glimpses_locs_dims[:, 2] = config.glimpse_size_init[0]
glimpses_locs_dims[:, 3] = config.glimpse_size_init[1]
foveation_progress_per_glimpse_loc.append(glimpses_locs_dims.clone().detach())
for g in range(config.num_glimpses):
glimpses_extracted_resized = extract_and_resize_glimpses_for_batch(input_image, glimpses_locs_dims,
config.glimpse_size_fixed[1], config.glimpse_size_fixed[0]) # glimpse_size_fixed[width, height]
glimpses_change_predictions, switch_location_predictions = locmodel(glimpses_extracted_resized)
switch_location_probability = torch.sigmoid(switch_location_predictions.clone().detach()).squeeze(1)
switch_location_actions = (switch_location_probability >= switch_location_th).item()
if switch_location_actions:
break
# Current glimpse bounds.
x_min_current = (glimpses_locs_dims[:, 0]).clone().detach()
x_max_current = (glimpses_locs_dims[:, 0]+glimpses_locs_dims[:, 2]).clone().detach()
y_min_current = (glimpses_locs_dims[:, 1]).clone().detach()
y_max_current = (glimpses_locs_dims[:, 1]+glimpses_locs_dims[:, 3]).clone().detach()
# Change glimpse dimensions according to model predictions.
glimpses_change_probability = torch.sigmoid(glimpses_change_predictions.clone().detach())
glimpses_change_actions = (glimpses_change_probability >= config.glimpse_change_th)
# Check so that glimpses do not go out of the image boundaries.
x_min_new = torch.clamp(x_min_current - glimpses_change_actions[:, 0]*config.glimpse_size_step[0], min=0)
x_max_new = torch.clamp(x_max_current + glimpses_change_actions[:, 1]*config.glimpse_size_step[0], max=input_image.shape[-1]) #(height, width) as used in transforms.Resize
y_min_new = torch.clamp(y_min_current - glimpses_change_actions[:, 2]*config.glimpse_size_step[1], min=0)
y_max_new = torch.clamp(y_max_current + glimpses_change_actions[:, 3]*config.glimpse_size_step[1], max=input_image.shape[-2]) #(height, width) as used in transforms.Resize
# Store the new glimpse locations and dimensions.
glimpses_locs_dims[:, 0] = x_min_new.clone().detach()
glimpses_locs_dims[:, 1] = y_min_new.clone().detach()
glimpses_locs_dims[:, 2] = x_max_new.clone().detach() - glimpses_locs_dims[:, 0]
glimpses_locs_dims[:, 3] = y_max_new.clone().detach() - glimpses_locs_dims[:, 1]
foveation_progress_per_glimpse_loc.append(glimpses_locs_dims.clone().detach())
foveation_results = {}
foveation_results["final_glimpse_switch_probability"] = switch_location_probability.item()
foveation_results["final_glimpse_objectness"] = 1.0 - switch_location_probability.item()
foveation_results["final_glimpse_loc_and_dim"] = copy.deepcopy(glimpses_locs_dims)
foveation_results["foveation_progress"] = copy.deepcopy(foveation_progress_per_glimpse_loc)
return foveation_results
#%% Evaluate the model performance.
args.end = len(dataset) if args.end == -1 else args.end
collected_samples = {}
cnt_discarded = 0
with torch.no_grad():
for i in range(args.start-1, args.end, 1):
if config_3.dataset == 'voc12':
image, (filename, (w_original, h_original)) = dataset[i]
image = image.unsqueeze(0).to(device)
# Coordinates of all grid cells (either of the centers or top left corner coordinates of each grid cell)
all_grid_cells_centers = get_grid((config_3.full_res_img_size[1], config_3.full_res_img_size[0]),
config_3.glimpse_size_grid, grid_center_coords=True).to(device)
# first, we foveate from every grid cell
switch_location_th = config_3.switch_location_th
all_potential_locations = []
for grid_cell in all_grid_cells_centers:
foveation_results = FALcon_from_init_glimpse_loc(config = config_3,
locmodel = model_3,
input_image = image,
init_glimpse_loc = grid_cell,
switch_location_th = switch_location_th)
# store the ones which had high objectness (i.e. 1-switch_probability) scores
if foveation_results["final_glimpse_switch_probability"] < switch_location_th:
foveation_results["xywh_box"] = copy.deepcopy(foveation_results["final_glimpse_loc_and_dim"][0])
foveation_results["xyxy_box"] = copy.deepcopy(foveation_results["final_glimpse_loc_and_dim"][0])
foveation_results["xyxy_box"][2] += foveation_results["xyxy_box"][0]
foveation_results["xyxy_box"][3] += foveation_results["xyxy_box"][1]
all_potential_locations.append(copy.deepcopy(foveation_results))
# second, we filter based on objectness
all_potential_locations_filtered_objectness = []
if len(all_potential_locations) > 0:
xyxy_boxes = []
obj_scores = []
for potential_location in all_potential_locations:
xyxy_boxes.append(potential_location["xyxy_box"])
obj_scores.append(potential_location["final_glimpse_objectness"])
xyxy_boxes = torch.stack(xyxy_boxes, dim=0)*1.0
obj_scores = torch.tensor(obj_scores).to(xyxy_boxes.device)
nms_objectness_filtered_idx = nms(xyxy_boxes, obj_scores, config_3.objectness_based_nms_th)
for idx in nms_objectness_filtered_idx:
potential_location = all_potential_locations[idx.item()]
potential_location["prediction_confidence"] = 1.0
potential_location["prediction_label"] = dataset._class_to_ind['bird']
all_potential_locations_filtered_objectness.append(potential_location)
elif len(all_potential_locations) == 0:
dummy_result = {}
dummy_result["xyxy_box"] = torch.zeros((1, 4)).to(device)
dummy_result["prediction_label"] = -1
dummy_result["final_glimpse_objectness"] = 0.0
all_potential_locations_filtered_objectness.append(copy.deepcopy(dummy_result))
cnt_discarded += 1
sample_stats = {}
sample_stats["filename"] = copy.deepcopy(filename)
sample_stats["original_wh"] = (w_original, h_original)
sample_stats["gt_resized_wh"] = (config_3.full_res_img_size[1], config_3.full_res_img_size[0])
sample_stats["predictions"] = copy.deepcopy(all_potential_locations_filtered_objectness)
collected_samples[i] = copy.deepcopy(sample_stats)
if 'voc' in config_3.dataset:
torch.save(collected_samples, config_3.save_dir + "{}_collected_sample_from{}to{}.pth".format(config_3.dataset, args.start, args.end))
if (i+1) %100 == 0 or i == len(dataset)-1:
print("{}/{} requested samples processed!\n".format(
(i+1), (args.end - args.start + 1)))
#%% Analyze VOC07 on test set annotations
# if config_3.dataset == 'voc12':
# save_file = config_3.save_dir + "voc12_comp3_det_test_bird.txt"
# with open(save_file, "w") as fp:
# for k, v in collected_samples.items():
# if v["predictions"][0]["prediction_label"] == -1:
# continue
# else:
# filename = v['filename'].split('/')[-1].split('.')[0]
# w_original, h_original = v['original_wh']
# w_resized, h_resized = v['gt_resized_wh']
# ratio_x = w_original*1.0/w_resized
# ratio_y = h_original*1.0/h_resized
# for prediction in v["predictions"]:
# confidence = prediction["final_glimpse_objectness"]
# bbox = prediction["xyxy_box"].float()
# bbox[0] = bbox[0] * ratio_x
# bbox[1] = bbox[1] * ratio_y
# bbox[2] = bbox[2] * ratio_x
# bbox[3] = bbox[3] * ratio_y
# bbox = torch.round(bbox + 1)
# fp.write(filename + " " +
# "{:.6f}".format(confidence) + " " +
# "{:.2f}".format(bbox[0].item()) + " " +
# "{:.2f}".format(bbox[1].item()) + " " +
# "{:.2f}".format(bbox[2].item()) + " " +
# "{:.2f}".format(bbox[3].item()) + "\n")