-
Notifications
You must be signed in to change notification settings - Fork 76
/
util_car.py
1203 lines (1002 loc) · 44.9 KB
/
util_car.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
from subprocess import call
import os, time
import shutil
import io
import base64
from IPython.display import HTML
import numpy as np
from PIL import ImageDraw, Image, ImageFont
from tempfile import NamedTemporaryFile
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D
from matplotlib import animation
import matplotlib
import math
import copy
import itertools
import tensorflow as tf
import subprocess
FLAGS = tf.app.flags.FLAGS
import cv2
#from pylab import *
import pylab
from matplotlib.patches import Wedge
from scipy.ndimage.filters import gaussian_filter
from mpl_toolkits.axes_grid1.anchored_artists import AnchoredDrawingArea
from matplotlib.patches import FancyArrowPatch
def images2video_highqual(frame_rate,
name="temp_name", dir_name="temp_dir"):
# make dir if not exists
if not os.path.isdir(dir_name):
os.mkdir(dir_name)
pwd = os.getcwd()
os.chdir(dir_name)
print("converting to video")
video_name = name+'.mp4'
cmd = "ffmpeg -y -f image2 -r " + str(frame_rate) + " -pattern_type glob -i '*.png' -crf 5 -preset veryslow " + \
"-threads 16 -vcodec libx264 -pix_fmt yuv420p " + video_name
call(cmd, shell=True)
call("rm *.png", shell=True)
os.chdir(pwd)
return os.path.join(dir_name, video_name)
def images2video(images, frame_rate,
name="temp_name", dir_name="temp_dir", highquality=True):
images = np.uint8(images)
shape = images.shape
assert (len(shape) == 4)
assert (shape[3] == 3 or shape[3] == 1)
# make dir if not exists
if not os.path.isdir(dir_name):
os.mkdir(dir_name)
pwd = os.getcwd()
os.chdir(dir_name)
# write out images
print("writing images")
for i in range(shape[0]):
j = Image.fromarray(images[i, :, :, :])
j.save("%05d.jpeg" % i, "jpeg", quality=93)
print("converting to video")
video_name = name+'.mp4'
quality_str = '16' if highquality else '28'
cmd = "ffmpeg -y -f image2 -r " + str(frame_rate) + " -pattern_type glob -i '*.jpeg' -crf "+quality_str+" -preset veryfast " + \
"-threads 16 -vcodec libx264 -pix_fmt yuv420p " + video_name
call(cmd, shell=True)
call("rm *.jpeg", shell=True)
os.chdir(pwd)
return os.path.join(dir_name, video_name)
def play_video(path):
video = io.open(path, 'r+b').read()
encoded = base64.b64encode(video)
return HTML(data='''<video alt="test" controls>
<source src="data:video/mp4;base64,{0}" type="video/mp4" />
</video>'''.format(encoded.decode('ascii')))
def visualize_images(images, frame_rate,
name="temp_name", dir_name="temp_dir",delete_temp=True):
path = images2video(images, frame_rate, name, dir_name)
out = play_video(path)
if delete_temp:
assert not("*" in dir_name)
shutil.rmtree(dir_name)
return out
def write_text_on_image(image, string,
lines=[],
fontsize=30,
lines_color=[]):
shape = image.shape
assert (len(shape) == 3)
assert (shape[-1] == 3 or shape[-1] == 1)
image = np.uint8(image)
j = Image.fromarray(image)
draw = ImageDraw.Draw(j)
# font = ImageFont.load_default().font
#font = ImageFont.truetype("/usr/share/fonts/truetype/inconsolata/Inconsolata.otf", fontsize)
font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", fontsize)
if isinstance(string, list):
for s in string:
draw.text(s[0], s[1], s[2], font=font)
else:
draw.text((0, 0), string, (255, 0, 0), font=font)
for line in lines:
draw.line(line, fill=128, width=1)
for line in lines_color:
draw.line(line[0], fill=line[1], width=1)
return np.array(j)
def egomotion2animation(ego):
# ego is a egomotion matrix, with nframes * previous frames * 3
fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')
line = ax.plot([], [], '.', zs=[])
line = line[0]
def get_range(ego, axis):
data = ego[:, :, axis]
data = np.reshape(data, [-1])
return [np.min(data), np.max(data)]
ax.axis(get_range(ego, 0) + get_range(ego, 1))
zrange = get_range(ego, 2)
ax.set_zlim(zrange[0], zrange[1])
# initialization function: plot the background of each frame
def init():
line.set_data([], [])
return line,
# animation function. This is called sequentially
def animate(i):
line.set_data(ego[i, :, 0], ego[i, :, 1])
line.set_3d_properties(ego[i, :, 2])
return line,
# call the animator. blit=True means only re-draw the parts that have changed.
anim = animation.FuncAnimation(fig, animate, init_func=init,
frames=ego.shape[0], blit=True)
plt.close(anim._fig)
return anim
def animation2HTML(anim, frame_rate):
print("animaiton to video...")
if not hasattr(anim, '_encoded_video'):
with NamedTemporaryFile(suffix='.mp4') as f:
anim.save(f.name, fps=frame_rate,
extra_args=['-vcodec', 'libx264',
'-pix_fmt', 'yuv420p',
'-crf', '28',
'-preset', 'veryfast'])
video = io.open(f.name, 'r+b').read()
encoded = base64.b64encode(video)
return HTML(data='''<video alt="test" controls>
<source src="data:video/mp4;base64,{0}" type="video/mp4" />
</video>'''.format(encoded.decode('ascii')))
def visualize_egomotion(ego, frame_rate):
anim = egomotion2animation(ego)
return animation2HTML(anim, frame_rate)
def vis_reader(tout, frame_rate, j=0):
decoded, isvalid, ego, name, isstop = tout
images = decoded[j, :, :, :, :]
images_txt = np.zeros_like(images)
this_stop = isstop[j]
this_valid = isvalid[j]
for i in range(images.shape[0]):
stop_str = {1: "STOP",
0: "GO",
-1: "UNKNOWN"}[this_stop[i]]
valid_str = {0: "Egomotion=Invalid",
1: "Egomotion=Valid"}[this_valid[i]]
showing_str = stop_str + "\n" + valid_str
# showing_str = stop_str
images_txt[i, :, :, :] = write_text_on_image(images[i, :, :, :], showing_str)
print("showing visualization for video %s" % name[0])
return visualize_images(images_txt, frame_rate)
def move_to_line(move, h, w, multiplier = 10):
m = copy.deepcopy(move)
m[1] *= multiplier
m = [m[1] * math.sin(m[0]), m[1]*math.cos(m[0])]
return [w / 2, h, w/2+m[0], h-m[1]]
def draw_bar_on_image(image, bar_left_top, fraction, fill=(0,0,0,128), height=20, length=120):
image = np.uint8(image)
j = Image.fromarray(image)
draw = ImageDraw.Draw(j)
l = bar_left_top
draw.rectangle([l, (l[0]+int(length*fraction), l[1]+height)], fill=fill)
return np.array(j)
def vis_reader_stop_go(tout, prediction,frame_rate, j=0, save_visualize = False, dir_name="temp", provider="nexar_large_speed"):
#out_of_date, won't do stop go any more
decoded = tout[0]
speed = tout[1]
name = tout[2]
highres = tout[3]
isstop = tout[4]
turn = tout[5]
locs = tout[6]
decoded = highres
turn = turn[j, :, :]
locs = locs[j, :, :]
images = decoded[j, :, :, :, :]
images_txt = np.zeros_like(images)
stop = isstop[j, :]
speed = speed[j, :, :]
for i in range(images.shape[0]):
showing_str = "STOP" if prediction[i] == 1 else "GO!"
showing_str += "\n" + str(np.linalg.norm(speed[i, :]))
showing_str += "\n" + "GT: STOP" if stop[i] == 1 else "\nGT: GO!"
images_txt[i, :, :, :] = write_text_on_image(images[i, :, :, :],
showing_str)
print("showing visualization for video %s" % name[0])
#vis_speed(speed, frame_rate)
if save_visualize:
_, short_name = os.path.split(name[j])
short_name = short_name.split(".")[0]
return visualize_images(images_txt, frame_rate,
name=short_name,
dir_name=dir_name,
delete_temp=False)
else:
return visualize_images(images_txt, frame_rate)
def vis_discrete(tout, predict, frame_rate,
j=0, save_visualize=False, dir_name="temp"):
import data_providers.nexar_large_speed as provider
int2str = provider.MyDataset.turn_int2str
# city_data and only_seg are mutually exclusive, actually one flag is enough
if FLAGS.city_data == 1:
decoded = tout[0]
speed = tout[1]
name = tout[2]
isstop = tout[5]
turn = tout[6]
locs = tout[7]
elif FLAGS.only_seg == 1:
decoded = tout[0]
speed = tout[1]
name = tout[2]
isstop = tout[6]
turn = tout[7]
locs = tout[8]
else:
decoded = tout[0]
speed = tout[1]
name = tout[2]
highres = tout[3]
isstop = tout[4]
turn = tout[5]
locs = tout[6]
decoded = highres
images = copy.deepcopy(decoded[j, :, :, :, :])
_, hi, wi, _ = images.shape
locs = locs[j, :, :]
turn = turn[j, :, :]
for i in range(images.shape[0]):
# the ground truth course and speed
showing_str = "speed: %.1f m/s \ncourse: %.2f degree/s" % \
(locs[i, 1], locs[i, 0]/math.pi*180)
for k in range(4):
showing_str += "\n"+int2str[k]
gtline = move_to_line(locs[i,:], hi, wi)
FontHeight=18
FontWidth =8
for k in range(4):
images[i, :, :, :] = draw_bar_on_image(images[i,:,:,:],
(FontWidth*14, FontHeight*(2+k)),
fraction = turn[i, k],
fill=(255, 0, 0, 128),
height=FontHeight * 2 // 3,
length=FontWidth * 4)
images[i, :, :, :] = draw_bar_on_image(images[i, :, :, :],
(FontWidth * 20, FontHeight * (2 + k)),
fraction=predict[i, k],
fill=(0, 255, 0, 128),
height=FontHeight * 2 // 3,
length=FontWidth * 4)
images[i, :, :, :] = write_text_on_image(images[i, :, :, :],
showing_str,
[gtline],
fontsize=15)
print("showing visualization for video %s" % name[j])
if save_visualize:
_, short_name = os.path.split(name[j])
short_name = short_name.split(".")[0]
for i in range(10):
this_name = short_name + "_" + str(i)
if not os.path.isfile(os.path.join(dir_name,this_name+'.mp4')):
break
return visualize_images(images, frame_rate,
name=this_name,
dir_name=dir_name,
delete_temp=False)
else:
return visualize_images(images, frame_rate)
def vis_discrete_simplified(tout, predict, frame_rate,
j=0, save_visualize=False, dir_name="temp"):
import data_providers.nexar_large_speed as provider
int2str = provider.MyDataset.turn_int2str
decoded = tout[0]
speed = tout[1]
name = tout[2]
highres = tout[3]
isstop = tout[4]
turn = tout[5]
locs = tout[6]
decoded = highres
images = copy.deepcopy(decoded[j, :, :, :, :])
_, hi, wi, _ = images.shape
locs = locs[j, :, :]
turn = turn[j, :, :]
for i in range(images.shape[0]):
# the ground truth course and speed
showing_str = ""
for k in range(4):
showing_str += int2str[k] + "\n"
FontHeight = 18
FontWidth = 8
for k in range(4):
images[i, :, :, :] = draw_bar_on_image(images[i, :, :, :],
(FontWidth * 14, FontHeight * k),
fraction=turn[i, k],
fill=(255, 0, 0, 128),
height=FontHeight * 2 // 3,
length=FontWidth * 4)
images[i, :, :, :] = draw_bar_on_image(images[i, :, :, :],
(FontWidth * 20, FontHeight * k),
fraction=predict[i, k],
fill=(0, 255, 0, 128),
height=FontHeight * 2 // 3,
length=FontWidth * 4)
images[i, :, :, :] = write_text_on_image(images[i, :, :, :],
showing_str,
fontsize=15)
print("showing visualization for video %s" % name[j])
if save_visualize:
_, short_name = os.path.split(name[j])
short_name = short_name.split(".")[0]
for i in range(10):
this_name = short_name + "_" + str(i)
if not os.path.isfile(os.path.join(dir_name, this_name + '.mp4')):
break
return visualize_images(images, frame_rate,
name=this_name,
dir_name=dir_name,
delete_temp=False)
else:
return visualize_images(images, frame_rate)
def generate_meshlist(arange1, arange2):
return np.dstack(np.meshgrid(arange1, arange2, indexing='ij')).reshape((-1,2))
def draw_sector(image,
predict,
car_stop_model,
course_delta = 0.5 / 180 * math.pi,
speed_delta=0.3,
pdf_multiplier=255,
speed_multiplier = 5,
h=360, w=640,
max_speed=30,
uniform_speed=False,
consistent_vis=(False, 1e-3, 1e2),
has_alpha_channel=False):
course_samples = np.arange(-math.pi / 2-course_delta,
math.pi / 2+course_delta,
course_delta)
speed_samples = np.arange(0, max_speed+speed_delta, speed_delta)
total_pdf = car_stop_model.continous_pdf([predict],
generate_meshlist(course_samples, speed_samples),
"multi_querys")
total_pdf = np.reshape(total_pdf, (len(course_samples), len(speed_samples)))
if uniform_speed:
total_pdf = total_pdf / np.sum(total_pdf, axis=1, keepdims=True)
speed_scaled = max_speed * speed_multiplier
# potential xy positions to be filled
xy = generate_meshlist(np.arange(w / 2 - speed_scaled, w / 2 + speed_scaled),
np.arange(h - speed_scaled, h))
# filter out invalid speed
v=np.stack((xy[:,0]-w/2, h-xy[:,1]), axis=1)
speed_norm = np.sqrt(v[:,0]**2 + v[:,1]**2) *(1.0/speed_multiplier)
valid_speed = np.less(speed_norm, max_speed)
xy = xy[valid_speed, :]
speed_norm=speed_norm[valid_speed]
v=v[valid_speed]
course_norm = np.arctan(1.0*v[:, 0] / v[:, 1])
# search the course and speed
icourse = np.searchsorted(course_samples, course_norm)
ispeed = np.searchsorted(speed_samples, speed_norm)
green_portion = 0.5
total = total_pdf[icourse, ispeed]
if consistent_vis[0] == False:
total_max = np.amax(total)
total = total / total_max * 255*green_portion
else:
# consistent visualization between methods
MIN = consistent_vis[1]
MAX = consistent_vis[2]
total = np.maximum(MIN, total)
total = np.minimum(MAX, total)
#total = np.log(total) # map to log(MIN) to log(MAX)
#total = (total -np.log(MIN)) / (np.log(MAX) - np.log(MIN)) * 255
total = (total - MIN) / (MAX - MIN)
total = np.sqrt(total)
total = total * 255 * green_portion
# assign to image
image[xy[:, 1], xy[:, 0], :] *= (1-green_portion)
image[xy[:, 1], xy[:, 0], 1] += total
if has_alpha_channel:
image[xy[:, 1], xy[:, 0], 3] = 255
return image
def vis_continuous(tout, predict, frame_rate, car_stop_model,
j=0, save_visualize=False, dir_name="temp", return_first=False, **kwargs):
decoded = tout[0]
speed = tout[1]
name = tout[2]
if FLAGS.city_data:
seg_image = tout[3]
highres = tout[4]
isstop = tout[5]
turn = tout[6]
locs = tout[7]
else:
highres = tout[3]
isstop = tout[4]
turn = tout[5]
locs = tout[6]
decoded = highres
images = copy.deepcopy(decoded[j, :, :, :, :])
print(images.shape)
images = images.astype('float64')
_, hi, wi, _ = images.shape
locs = locs[j, :, :]
for i in range(images.shape[0]):
# the ground truth course and speed
showing_str = "speed: %.1f m/s \ncourse: %.2f degree/s" % \
(locs[i, 1], locs[i, 0] / math.pi * 180)
gtline = move_to_line(locs[i, :], hi, wi, 10)
images[i, :, :, :] = draw_sector(images[i, :, :, :],
predict[i:(i+1), :],
car_stop_model,
course_delta=0.3 / 180 * math.pi,
speed_delta=0.3,
pdf_multiplier=255*10,
speed_multiplier=wi/30/3,
h=hi, w=wi,
consistent_vis=(True, 1e-5, 0.3))
# get the MAP prediction
map = car_stop_model.continous_MAP([predict[i:(i+1), :]])
mapline = move_to_line(map.ravel(), hi, wi, 10)
# swap the shorter line to the latter, avoid overwriting
lines_v = [(gtline, (255,0,0)), (mapline, (0, 0, 255))]
if locs[i, 1] < map.ravel()[1]:
lines_v = [lines_v[1], lines_v[0]]
images[i, :, :, :] = write_text_on_image(images[i, :, :, :],
showing_str,
lines_color=lines_v,
fontsize=15)
print("showing visualization for video %s" % name[j])
if return_first:
return images[0, :, :, :].astype(np.uint8)
if save_visualize:
_, short_name = os.path.split(name[j])
short_name = short_name.split(".")[0]
return visualize_images(images, frame_rate,
name=short_name,
dir_name=dir_name,
delete_temp=False)
else:
return visualize_images(images, frame_rate)
def vis_continuous_simplified(tout, predict, frame_rate, car_stop_model,
j=0, save_visualize=False, dir_name="temp", vis_radius=10):
decoded = tout[0]
speed = tout[1]
name = tout[2]
highres = tout[3]
isstop = tout[4]
turn = tout[5]
locs = tout[6]
decoded = highres
images = copy.deepcopy(decoded[j, :, :, :, :])
images = images.astype('float64')
_, hi, wi, _ = images.shape
locs = locs[j, :, :]
locs = copy.deepcopy(locs)
for i in range(images.shape[0]):
# the ground truth course and speed
locs[i, 1] = 10.0
# get the MAP prediction
map = car_stop_model.continous_MAP([predict[i:(i+1), :]])
map = map.ravel()
map[1] = 10.0
mapline = move_to_line(map, hi, wi, 10)
# get map2
map2 = car_stop_model.continous_MAP([predict[i:(i + 1), :]], return_second_best=True)
map2 = map2.ravel()
map2[1] = 10.0
mapline2 = move_to_line(map2, hi, wi, 10)
showing_str = [
[(0, 0), "driver's angular speed: %.2f degree/s" % (locs[i, 0] / math.pi * 180), (255, 0, 0)],
[(0, 20), "predicted angular speed: %.2f degree/s" % (map[0] / math.pi * 180), (0, 0, 255)]]
# disable the small str on top first
showing_str = ""
showing_str = "speed: %.1f m/s \ncourse: %.2f degree/s" % \
(locs[i, 1], locs[i, 0] / math.pi * 180)
gtline = move_to_line(locs[i, :], hi, wi, 10)
if FLAGS.is_MKZ_dataset:
# might be problematic since we enable the normalization
higher_bound = 0.3
else:
higher_bound = 3.0
images[i, :, :, :] = draw_sector(images[i, :, :, :],
predict[i:(i+1), :],
car_stop_model,
course_delta=0.1 / 180 * math.pi,
speed_delta=0.1,
pdf_multiplier=255*10,
speed_multiplier=int(wi/30/3),
h=hi, w=wi,
uniform_speed=True,
consistent_vis=(True, 1e-5, higher_bound))
# disable the MAP line first, since many times not the MAP line is considered
'''
# swap the shorter line to the latter, avoid overwriting
lines_v = [(gtline, (255,0,0)), (mapline, (0, 0, 255))]
if locs[i, 1] < map.ravel()[1]:
lines_v = [lines_v[1], lines_v[0]]
'''
lines_v = [(gtline, (255,0,0)), (mapline, (0,0,255)), (mapline2, (0, 255, 0))]
images[i, :, :, :] = write_text_on_image(images[i, :, :, :],
showing_str,
lines_color=lines_v,
fontsize=24)
print("showing visualization for video %s" % name[j])
if save_visualize:
_, short_name = os.path.split(name[j])
short_name = short_name.split(".")[0]
return visualize_images(images, frame_rate,
name=short_name,
dir_name=dir_name,
delete_temp=False)
else:
return visualize_images(images, frame_rate)
# some visualization functions for the speed
def visLoc(locs, label="NotSet"):
axis = lambda i: [loc[i] for loc in locs]
import matplotlib.ticker as ticker
fig, ax = plt.subplots()
#plt.grid(True)
ax.plot(axis(0), axis(1), 'g^', ms=2)
ylim = ax.get_ylim()
xlim = ax.get_xlim()
ax.set_xlim(min(xlim[0],ylim[0]) ,max(xlim[1],ylim[1]))
ax.set_ylim(min(xlim[0],ylim[0]) ,max(xlim[1],ylim[1]))
plt.title("Moving paths from " + label)
plt.xlabel("West -- East")
plt.ylabel("South -- North")
plt.show()
def integral(speed, time0):
out = np.zeros_like(speed)
l = speed.shape[0]
for i in range(l):
s = speed[i, :]
if i > 0:
out[i, :] = out[i - 1, :] + s * time0
return out
def vis_speed(speed, hz):
visLoc(integral(speed, 1.0 / hz), "speed and course")
def softmax(x):
"""Compute softmax values for each sets of scores in x."""
# x has shape: #instances * #classes
maxes = np.max(x, axis=1)
e_x = np.exp(x - maxes[:, None])
sums = np.sum(e_x, axis=1)
return e_x / sums[:, None]
def read_video_file(video_path, HEIGHT, WIDTH):
# take a video's path and return its decoded contents
cmnd = ['ffmpeg',
'-i', video_path,
'-f', 'image2pipe',
'-loglevel', 'panic',
'-pix_fmt', 'rgb24',
'-vcodec', 'rawvideo', '-']
pipe = subprocess.Popen(cmnd, stdout=subprocess.PIPE, bufsize=10 ** 7)
pout, perr = pipe.communicate()
image_buff = np.fromstring(pout, dtype='uint8')
if image_buff.size % (HEIGHT*WIDTH):
print("Height and Width are potentially not correct")
return None
image_buff = image_buff.reshape((-1, HEIGHT, WIDTH, 3))
return image_buff
def vis_discrete_colormap_antialias(tout, predict, frame_rate, j=0, save_visualize=False, dir_name="temp", string_type='image'):
if FLAGS.only_seg:
decoded = tout[0]
speed = tout[1]
name = tout[2]
isstop = tout[6]
turn = tout[7]
locs = tout[8]
else:
decoded = tout[0]
speed = tout[1]
name = tout[2]
highres = tout[3]
isstop = tout[4]
turn = tout[5]
locs = tout[6]
decoded = highres
images = copy.deepcopy(decoded[j, :, :, :, :])
_, hi, wi, _ = images.shape
turn = turn[j, :, :]
def get_color(prob):
cm = pylab.get_cmap('viridis') # inferno
color = cm(prob) # color will now be an RGBA tuple
r = color[0] * 255
g = color[1] * 255
b = color[2] * 255
return r, g, b
def clamp(x):
x = float(x)
return max(0, min(x, 1))
def add_to_ada(ada, pos_x, pos_y, radius, angle_s, angle_e, ring_width, color_code, edge_color, alpha_value):
ada.drawing_area.add_artist(
Wedge((pos_x, pos_y), radius, angle_s, angle_e, width=ring_width # , color=color_code#'#DAF7A6'
, alpha=alpha_value, antialiased=True, ec=edge_color, fc=color_code))
def draw_cake(ada, pos_x, pos_y, radius, angle_s, angle_diff, ring_width, color_code, edge_color, alpha_value,
share, shift=45):
angle_s = angle_s + shift
for i in range(share):
if (angle_s + (i + 1) * (angle_diff) / share) == 360:
angle_end = 360
else:
angle_end = angle_s + (i + 1) * (angle_diff) / share
#print(i,'_______________________________________')
add_to_ada(ada, pos_x, pos_y, radius,
angle_s + i * (angle_diff) / share, angle_end,
ring_width, color_code=color_code, edge_color=edge_color, alpha_value=alpha_value[i])
def draw_pile_cake(ada, pos_x, pos_y, radius, angle_s, angle_diff, ring_width, color_code, edge_color, alpha_value,
share, x_frac, y_frac, split, fontsize=24, shift=45):
# draw the black one
draw_cake(ada, pos_x=pos_x, pos_y=pos_y, radius=radius, angle_s=angle_s, angle_diff=360, ring_width=None,
color_code='k', edge_color=None, alpha_value=[0.6], share=1)
# draw the green one
draw_cake(ada, pos_x=pos_x, pos_y=pos_y, radius=radius, angle_s=angle_s, angle_diff=360, ring_width=ring_width,
color_code=color_code, edge_color='#FFFFFF', alpha_value=alpha_value, share=4)
# draw the white edge
draw_cake(ada, pos_x=pos_x, pos_y=pos_y, radius=radius, angle_s=angle_s, angle_diff=360, ring_width=ring_width,
color_code='none', edge_color='#FFFFFF', alpha_value=[1, 1, 1, 1], share=4)
ada.da.add_artist(
ax.annotate(split, xy=(x_frac, y_frac), xycoords="axes fraction", fontsize=fontsize, color='w'))
def draw_cake_type(ada, string_type, action_mean, predict_mean):
if string_type == 'video':
draw_pile_cake(ada, pos_x=210, pos_y=70, radius=60, angle_s=0, angle_diff=360, ring_width=30,
color_code='#00FF00', edge_color=None, alpha_value=predict_mean, share=1,
x_frac=0.513, y_frac=0.895, split='P')
draw_pile_cake(ada, pos_x=80, pos_y=70, radius=60, angle_s=0, angle_diff=360, ring_width=30,
color_code='#00FF00', edge_color=None, alpha_value=action_mean, share=1,
x_frac=0.185, y_frac=0.895, split='G')
elif string_type == 'image':
draw_pile_cake(ada, pos_x=240, pos_y=70, radius=70, angle_s=0, angle_diff=360, ring_width=40,
color_code='#00FF00', edge_color=None, alpha_value=predict_mean, share=1,
x_frac=0.580, y_frac=0.89, split='P', fontsize=32)
draw_pile_cake(ada, pos_x=80, pos_y=70, radius=70, angle_s=0, angle_diff=360, ring_width=40,
color_code='#00FF00', edge_color=None, alpha_value=action_mean, share=1,
x_frac=0.18, y_frac=0.89, split='G', fontsize=32)
_, short_name = os.path.split(name[j])
short_name = short_name.split(".")[0]
for i in range(images.shape[0]):
action_mean = [clamp(turn[i, 0]+0.05), clamp(turn[i, 2]+0.05),
clamp(turn[i, 1]+0.1), clamp(turn[i, 3]+0.05)]
predict_mean = [clamp(predict[i, 0]+0.05), clamp(predict[i, 2]+0.05),
clamp(predict[i, 1]+0.05), clamp(predict[i, 3]+0.05)]
fig = plt.figure(figsize=(16, 12))
ax_original = plt.gca()
ax_original.set_axis_off()
ax_original.get_xaxis().set_visible(False)
ax_original.get_yaxis().set_visible(False)
plt.imshow(images[i, :, :, :])
plt.axis('off')
ax = fig.add_subplot(121, projection='polar')
ax_2 = fig.add_subplot(122, projection='polar')
ada = AnchoredDrawingArea(200, 100, 0, 0, loc=2, pad=0., frameon=False)
draw_cake_type(ada, string_type, action_mean, predict_mean)
ax.add_artist(ada)
ax.set_axis_off()
ax.get_xaxis().set_visible(False)
ax.get_yaxis().set_visible(False)
ax_2.set_axis_off()
ax_2.get_xaxis().set_visible(False)
ax_2.get_yaxis().set_visible(False)
if not os.path.exists(os.path.join(dir_name,'viz')):
os.mkdir(os.path.join(dir_name,'viz'))
if not os.path.exists(os.path.join(dir_name,'viz', short_name+string_type)):
os.mkdir(os.path.join(dir_name, 'viz', short_name+string_type))
fig.savefig(os.path.join(dir_name, 'viz', short_name+string_type,'{0:04}.png'.format(i)),
bbox_inches='tight', pad_inches = -0.04, Transparent=True, dpi=100)
print(short_name,' ', i, 'Done!')
plt.show()
plt.close()
images2video_highqual(frame_rate = 3,
name=short_name, dir_name=os.path.join(dir_name, 'viz', short_name+string_type))
def vis_continuous_colormap_antialias(tout, predict, frame_rate, car_stop_model,
j=0, save_visualize=False, dir_name="temp", vis_radius=10):
decoded = tout[0]
speed = tout[1]
name = tout[2]
highres = tout[3]
isstop = tout[4]
turn = tout[5]
locs = tout[6]
decoded = highres
images = copy.deepcopy(decoded[j, :, :, :, :])
#images = images.astype('float64')
_, hi, wi, _ = images.shape
locs = locs[j, :, :]
def plot_greens(bin_ends, values, image_width, image_height, radius, driver_action):
# bins are: [0, bin_ends[0]], [bin_ends[0], bin_ends[1]] ...
# and the corresponding values to display are: values[0], values[1]
# the final results are added to ada
ada = AnchoredDrawingArea(radius * 2, radius, 0, 0, loc=10, pad=0., frameon=False)
def add_ada_custom(angle_s, angle_e, value, color):
add_to_ada(ada, radius, -(image_height / 2 - radius / 2), radius, angle_s, angle_e, None, color, value)
def add_to_ada(ada, pos_x, pos_y, radius, angle_s, angle_e, ring_width, color_code, alpha_value):
ada.drawing_area.add_artist(
Wedge((pos_x, pos_y), radius, angle_s, angle_e, width=ring_width, fc=color_code # '#DAF7A6'
,ec = 'none', alpha=alpha_value, antialiased=True))
bin_ends = 180 - np.array(bin_ends)
bin_ends = bin_ends[::-1]
values = np.array(values)
values = np.squeeze(values)
values = values[::-1]
# add a black background
add_ada_custom(0, 180, 0.8, "#000000")
color_shading = "#00FF00"
for i in range(len(values)):
#print(bin_ends.shape, '____all____bin_____')
#print(values.shape, '___all_____values____')
if i < 5:
print(bin_ends[i], bin_ends[i + 1], values[i], '________________________')
add_ada_custom(bin_ends[i], bin_ends[i + 1], values[i], color_shading)
white_border = 1
border_color = '#FFFFFF'
add_to_ada(ada, radius, -(image_height / 2 - radius / 2), radius + white_border, 0, 180, white_border,
border_color, 1)
tick_len = 20
tick_color = '#FFFFFF'
tick_width = 1.0 / 2
for i in range(len(bin_ends)):
add_to_ada(ada, radius, -(image_height / 2 - radius / 2), radius + white_border,
bin_ends[i] - tick_width / 2, bin_ends[i] + tick_width / 2, tick_len, tick_color, 10)
driver_action = driver_action / 180.0 * math.pi
start = np.array([radius, -(image_height / 2 - radius / 2) - 2])
delta = np.array([radius * math.cos(driver_action), radius * math.sin(driver_action)]) * 0.8
color_driver = "#0000FF"
ada.drawing_area.add_artist(FancyArrowPatch(start, start + delta, linewidth=2, color=color_driver))
return ada
_, short_name = os.path.split(name[j])
short_name = short_name.split(".")[0]
for i in range(images.shape[0]):
# the ground truth course and speed
locs[i, 1] = 10.0
# get the MAP prediction
fig = plt.figure(figsize=(16, 12))
course_bin, speed_bin = car_stop_model.get_bins()
course_bin = [-math.pi/2] + course_bin + [math.pi/2]
course_bin = np.array(course_bin)*180/math.pi + 90
ax_original = plt.gca()
ax_original.set_axis_off()
ax_original.get_xaxis().set_visible(False)
ax_original.get_yaxis().set_visible(False)
plt.imshow(images[i, :, :, :])
plt.axis('off')
course = softmax(predict[i:(i + 1), 0:FLAGS.discretize_n_bins])
course = course/np.max(course)
print(course_bin, course, '!'*10)
ada2 = plot_greens(course_bin, course, 1280, 501, 200, -locs[i, 0]*180/math.pi+90)
ax_original.add_artist(ada2)
plt.show()
if not os.path.exists(os.path.join(dir_name,'viz')):
os.mkdir(os.path.join(dir_name,'viz'))
if not os.path.exists(os.path.join(dir_name,'viz', short_name)):
os.mkdir(os.path.join(dir_name, 'viz', short_name))
fig.savefig(os.path.join(dir_name, 'viz', short_name, '{0:04}.png'.format(i)),
bbox_inches='tight', pad_inches=-0.04, Transparent=True, dpi=100)
plt.close()
print(short_name)
print("showing visualization for video %s" % name[j])
def vis_continuous_interpolated(tout, predict, frame_rate, car_stop_model,
j=0, save_visualize=False, dir_name="temp", vis_radius=10, need_softmax=True, return_first=False):
decoded = tout[0]
speed = tout[1]
name = tout[2]
highres = tout[3]
isstop = tout[4]
turn = tout[5]
locs = tout[6]
decoded = highres
images = copy.deepcopy(decoded[j, :, :, :, :])
_, hi, wi, _ = images.shape
locs = locs[j, :, :]
def gen_mask(bin_ends, values, radius, height, width):
# convert bin_ends to bin centers
new_ends = []
for i in range(len(bin_ends) - 1):
new_ends.append((bin_ends[i] + bin_ends[i + 1]) / 2)
# RGBA
out = np.zeros((height, width, 4), dtype=np.uint8)
xy = np.dstack(np.meshgrid(np.arange(width / 2 - radius, width / 2 + radius),
np.arange(height - radius, height),
indexing='ij')).reshape((-1, 2))
# filter out invalid speed
v = np.stack((xy[:, 0] - width / 2, height - xy[:, 1]), axis=1)
speed_norm = np.sqrt(v[:, 0] ** 2 + v[:, 1] ** 2)
valid_speed = np.less(speed_norm, radius)
xy = xy[valid_speed, :]
speed_norm = speed_norm[valid_speed]
v = v[valid_speed]
course_norm = np.arccos(1.0 * v[:, 0] / speed_norm)
course_norm = np.degrees(course_norm)
value = np.interp(course_norm, new_ends, values)
out[xy[:, 1], xy[:, 0], 1] = 255 * value
out[xy[:, 1], xy[:, 0], 3] = 255
return out
def plot_greens(bin_ends, values, image_width, image_height, radius, driver_action):
ada = AnchoredDrawingArea(radius * 2, radius, 0, 0, loc=10, pad=0., borderpad=0., frameon=False)
def add_to_ada(ada, pos_x, pos_y, radius, angle_s, angle_e, ring_width, color_code, alpha_value):
ada.drawing_area.add_artist(
Wedge((pos_x, pos_y), radius, angle_s, angle_e, width=ring_width, fc=color_code # '#DAF7A6'
, ec='none', alpha=alpha_value, antialiased=True))
bin_ends = 180 - np.array(bin_ends)
bin_ends = bin_ends[::-1]
values = np.array(values)
values = np.squeeze(values)
values = values[::-1]
mask = gen_mask(bin_ends, values, radius, image_height, image_width)
plt.imshow(mask, alpha=0.8)
white_border = 2
border_color = '#FFFFFF'
add_to_ada(ada, radius, -(image_height / 2 - radius / 2), radius + white_border, 0, 180, white_border + 1,
border_color, 1)
tick_len = 20
tick_color = '#FFFFFF'
tick_width = 1.0 / 2
for i in range(len(bin_ends)):
if abs(bin_ends[i] - 90) > 10:
add_to_ada(ada, radius, -(image_height / 2 - radius / 2), radius + white_border,
bin_ends[i] - tick_width / 2, bin_ends[i] + tick_width / 2, tick_len, tick_color, 10)
driver_action = driver_action / 180.0 * math.pi
start = np.array([radius, -(image_height / 2 - radius / 2)])
delta = np.array([radius * math.cos(driver_action), radius * math.sin(driver_action)]) * 0.8
color_driver = "#0000FF"
ada.drawing_area.add_artist(FancyArrowPatch(start, start + delta, linewidth=2, color=color_driver))