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volley_track.py
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volley_track.py
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import cv2
import torch
import queue
import os, sys
import argparse
import warnings
import time, copy
from my_utils import *
from tqdm import tqdm
from datetime import datetime
from roboflow import Roboflow
### supress warnings ###
warnings.filterwarnings("ignore")
###################
### Parse Arguments ###
parser = argparse.ArgumentParser()
parser.add_argument("--input_video_path",
type=str,
default="assets/back_view.mp4",
help="path to the video with volleyball in it")
parser.add_argument("--output_video_path",
type=str,
default="",
help="path for the output video (.mp4), default new VideoOutput folder")
parser.add_argument("--model",
type=str,
default='roboflow',
choices=['roboflow', 'yolov7'],
help="which model to use for prediction")
parser.add_argument("--confidence",
type=float,
default=0.2,
help="prediction confidence")
parser.add_argument("--show",
action='store_true',
help="watch preview")
parser.add_argument("--marker",
type=str,
default='circle',
choices=['circle', 'box'],
help="how to highlight the ball")
parser.add_argument("--color",
type=str,
default='yellow',
choices=['black', 'white', 'red', 'green', 'purple',
'blue', 'yellow', 'cyan','gray', 'navy'],
help="color for highlighting the ball")
parser.add_argument("--no_trace",
action='store_true',
help="don't draw trajectory of the ball")
args = parser.parse_args()
input_video = args.input_video_path
output_video = args.output_video_path
model_name = args.model
conf = args.confidence
show = args.show
marker = args.marker
no_trace = args.no_trace
color = args.color
if color == 'yellow':
color = [0, 255, 255]
elif color == 'black':
color = [0, 0, 0]
elif color == 'white':
color = [255, 255, 255]
elif color == 'red':
color = [0, 0, 255]
elif color == 'green':
color = [0, 255, 0]
elif color == 'blue':
color = [255, 0, 0]
elif color == 'cyan':
color = [255, 255, 0]
elif color == 'gray':
color = [128, 128 ,128]
elif color == 'purple':
color = [128, 0, 128]
elif color == 'navy':
color = [128, 0, 0]
###################
### Start Time ###
t1 = datetime.now()
###################
### Capture Video ###
video_in = cv2.VideoCapture(input_video)
if (video_in.isOpened() == False):
print("Error reading video file")
###################
### Video Writer ###
basename = os.path.basename(input_video)
extension = os.path.splitext(output_video)[1]
if output_video == "": #
os.makedirs('VideoOutput', exist_ok=True)
output_video = os.path.join("VideoOutput", model_name + 'Track' + '_' + basename)
else: # check if user path exists, create otherwise
f = os.path.split(output_video)[0]
if not os.path.isdir(f):
os.makedirs(f)
if (extension != '.mp4') and (extension != ''):
raise Exception(f"Extention for output video should be `.mp4`, but got {extension}")
fname = output_video
fps = video_in.get(5)
frame_width = int(video_in.get(3))
frame_height = int(video_in.get(4))
dims = (frame_width, frame_height)
fourcc = cv2.VideoWriter_fourcc(*'mp4v')
total_frames = video_in.get(cv2.CAP_PROP_FRAME_COUNT)
video_out = cv2.VideoWriter(fname, fourcc, fps, dims)
###################
### Model Selection ###
if model_name == 'roboflow':
# API key, if doesn't work, refer -->
# https://github.com/shukkkur/VolleyVision/discussions/5#discussioncomment-7737081
rf = Roboflow(api_key="WQp0964J9jw76po6tElU")
project = rf.workspace().project("volleyball-tracking")
model = project.version(13).model
elif model_name == 'yolov7':
model = custom(path_or_model='yV7-tiny/weights/best.pt')
model.conf = conf
model = RoboYOLO(model_name, model, conf)
###################
### Find Desired Object ####
bbox = (0, 0, 0, 0)
while bbox == (0, 0, 0, 0):
ret, frame = video_in.read()
if not ret:
break
pred = model.predict(frame)
bbox = x_y_w_h(pred, model_name)
if bbox == (0, 0, 0, 0):
raise Exception("Processed the whole video but failed to detect any volleyball")
###################
### Trajectory of volleyball ###
q = queue.deque() # we need to save the coordinate of previous 7 frames
for i in range(0, 8):
q.appendleft(None)
q.appendleft(bbox)
###################
### Initialize Tracker ###
ok, image = video_in.read() # get first frame
tracker = initialize_tracker(image, bbox) # image, bounding box
###################
### Flag Variables & Progress Bar ###
previous = bbox
counter = 0
pbar = tqdm(total=int(total_frames), bar_format='Processing: {desc}{percentage:3.0f}%|{bar:10}')
###################
### Process Video & Write Frames ###
while video_in.isOpened():
ret, image = video_in.read()
if not ret:
break
debug_image = copy.deepcopy(image)
# Update Progress Bar
pbar.update(1)
# Updating Tracker
ok, bbox = tracker.update(image)
counter += 1
if counter == 10:
# calculate Euclidean Distance
# between bbox 10 frames apart
distance = calc_distance(previous, bbox)
previous = bbox
if ok:
if counter < 10:
q.appendleft(bbox)
q.pop()
else:
if distance > 50:
# significant change in bbox location / all good
q.appendleft(bbox)
q.pop()
counter = 0
else:
# bbox hasn't moved / stuck on non-volleyball object
# since we know that volleyball woud always be in motion
pred = model.predict(image)
bbox = x_y_w_h(pred, model_name)
q.appendleft(bbox)
q.pop()
counter = 0
if bbox != (0, 0, 0, 0):
tracker = initialize_tracker(image, bbox)
previous = bbox
else:
q.appendleft(None)
q.pop()
### marker, color & trace ###
for i in range(0, 8):
if q[i] is not None:
if i == 0: # current detection
if marker == 'box':
cv2.rectangle(debug_image, q[i], color, thickness=2)
elif marker == 'circle':
*center, r = get_circle(q[i])
cv2.circle(debug_image, center, r, color, 5)
elif (i != 0) and (no_trace is False): # pass detections
if marker == 'box':
cv2.rectangle(debug_image, q[i], color, thickness=2)
elif marker == 'circle':
*center, r = get_circle(q[i])
try:
cv2.circle(debug_image, center, r-10, color, -1)
except:
cv2.circle(debug_image, center, r, color, -1)
###################
video_out.write(debug_image)
###################
if show:
cv2.imshow('"p" - PAUSE, "Esc" - EXIT', debug_image)
k = cv2.waitKey(1)
if k == ord('p'):
cv2.waitKey(-1) # PAUSE
if k == 27: # ESC
break
video_in.release()
video_out.release()
cv2.destroyAllWindows()
pbar.close()
### End Time ###
t2 = datetime.now()
dt = t2 - t1
###################
print(f'Done - {dt.seconds/60:.2f} minutes')