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Feature 30 video output #31

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Feature 30 video output #31

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dab7949
Resolves Issue 30: Log Video Output
bobwold Apr 26, 2023
2b16bab
Use unique date/time names in the output path file to avoid replacing…
bobwold Apr 26, 2023
c7ccc1a
replace errant tabs with spaces to be consistant with rest of code.
bobwold Apr 26, 2023
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39 changes: 32 additions & 7 deletions umt/umt_main.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@

import os
import time
import datetime
import argparse

import cv2
Expand All @@ -21,7 +22,9 @@

LABEL_PATH = "models/tflite/coco_ssd_mobilenet_v1_1.0_quant_2018_06_29/labelmap.txt"
DEFAULT_LABEL_MAP_PATH = os.path.join(os.path.dirname(__file__), LABEL_PATH)
TRACKER_OUTPUT_TEXT_FILE = 'object_paths.csv'
TRACKER_OUTPUT_TEXT_FILE = f'object_paths/object_paths_{datetime.date.today()}_{int(time.time())}.csv'
VIDEO_OUT_ORIGINAL_FRAMES = f'output/{datetime.date.today()}_{int(time.time())}-original-frames.avi'
VIDEO_OUT_DETECTED_FRAMES = f'output/{datetime.date.today()}_{int(time.time())}-detected-frames.avi'

# deep sort related
MAX_COSINE_DIST = 0.4
Expand Down Expand Up @@ -75,6 +78,9 @@ def main():

# main tracking loop
print('\n> TRACKING...')
originalVideoWriter = None
detectedVideoWriter = None

with open(TRACKER_OUTPUT_TEXT_FILE, 'w') as out_file:
for i, pil_img in enumerate(img_generator(args)):

Expand All @@ -83,10 +89,17 @@ def main():

# add header to trajectory file
if i == 0:
header = (f'frame_num,rpi_time,obj_class,obj_id,obj_age,'
'obj_t_since_last_update,obj_hits,'
'xmin,ymin,xmax,ymax')
print(header, file=out_file)
header = (f'frame_num,rpi_time,obj_class,obj_id,obj_age,'
'obj_t_since_last_update,obj_hits,'
'xmin,ymin,xmax,ymax')
print(header, file=out_file)

if args.save_frames:
# note: selecting 10fps is certainly wrong-- the wrongness will depend on the speed of processing (most specifically if
# we have GPU / TPU capabilities.)
originalVideoWriter = cv2.VideoWriter(VIDEO_OUT_ORIGINAL_FRAMES,cv2.VideoWriter_fourcc('M','J','P','G'), 10, (pil_img.width,pil_img.height))
detectedVideoWriter = cv2.VideoWriter(VIDEO_OUT_DETECTED_FRAMES,cv2.VideoWriter_fourcc('M','J','P','G'), 10, (pil_img.width,pil_img.height))


# get detections
detections = generate_detections(pil_img, interpreter, args.threshold)
Expand Down Expand Up @@ -117,6 +130,10 @@ def main():
# convert pil image to cv2
cv2_img = cv2.cvtColor(np.array(pil_img), cv2.COLOR_RGB2BGR)

# write a frame to the "original" video
if args.save_frames:
originalVideoWriter.write(cv2_img)

# cycle through actively tracked objects
for track in tracker.tracks:
if not track.is_confirmed() or track.time_since_update > 1:
Expand All @@ -136,8 +153,16 @@ def main():
cv2.waitKey(1)

# persist frames
if args.save_frames: cv2.imwrite(f'output/frame_{i}.jpg', cv2_img)

if args.save_frames:
cv2.imwrite(f'output/frame_{i}.jpg', cv2_img)
# write a frame to the "detected" video
detectedVideoWriter.write(cv2_img)

#cleanup the video resources
if args.save_frames:
originalVideoWriter.release()
detectedVideoWriter.release()

cv2.destroyAllWindows()
pass

Expand Down