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auto_driver_video.py
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auto_driver_video.py
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# 自动行车程序（录制行车视频版）
import cv2, time
from model import pm_model
from devices import car_devices
from tool import draw_bbox, get_angle, load_label_list
from preprocess import preprocess_det, preprocess_car_line
if __name__ == "__main__":
# 初始化变量
Cross_Flag = 0
limit_Flag = 0
base_speed = 1530
color = (255, 225, 225)
font = cv2.FONT_HERSHEY_SIMPLEX
# 初始化设备
car = car_devices()
# 加载模型
ssd_lite = pm_model(data_shape=(1, 3, 128, 128), model_flie='./ssd_lite/model', param_file='./ssd_lite/params')
car_line = pm_model(data_shape=(1, 1, 128, 128), model_flie='./car_line/model', param_file='./car_line/params')
# 加载标签列表
label_list = load_label_list('./ssd_lite/label_list.txt')
# 初始化视频写入器
fourcc = cv2.VideoWriter_fourcc('M','J','P','G')
videoWriter = cv2.VideoWriter('video.avi', fourcc, 25, (160, 120))
# 启动前预热
for _ in range(30):
frame = car.read_frame()
tmp = preprocess_det(frame, (128, 128))
tmp = ssd_lite.predict(tmp)
tmp = preprocess_car_line(frame, (128, 128))
tmp = car_line.predict(tmp)
del frame, tmp
# 车辆启动
car.lib.send_cmd(base_speed, 1500)
# 主程序
while True:
starttime = time.time()
# 模型预测
frame = car.read_frame()
img = preprocess_det(frame, (128, 128))
result_det = ssd_lite.predict(img)
img = preprocess_car_line(frame, (128, 128))
result_car_line = car_line.predict(img)
# 预测结果后处理
angle = get_angle(result_car_line)
frame, results_list = draw_bbox(result_det, frame, label_list, draw_threshold=0.7, frame_shape=None)
# 前方检测到限速标志的操作
if 'limit_10' in results_list:
if results_list['limit_10'][1] > 40:
if limit_Flag==0:
limit_Flag = 1
base_speed = 1525
# 前方检测到解除限速标志的操作
if 'unlimit_10' in results_list:
if results_list['unlimit_10'][1] > 40:
if limit_Flag==1:
limit_Flag = 0
base_speed = 1530
# 设定速度
speed = base_speed
# 前方检测到红灯的操作
if 'red' in results_list:
if results_list['red'][1] > 40:
if Cross_Flag==0:
wait_start = time.time()
Cross_Flag = 1
if Cross_Flag == 1:
wait_end = time.time()
wait_time = wait_end - wait_start
if wait_time<=2.5:
speed = 1500
angle = 1500
elif wait_time<=5.0:
speed = base_speed
else:
Cross_Flag = 0
speed = base_speed
# 计算FPS
endtime = time.time()
fps = int(1/(endtime-starttime))
frame = cv2.putText(frame, 'FPS:%d' % fps, (5, 12), font, 0.4, color, 1)
# 写入视频帧
videoWriter.write(frame)
# 前方检测到停车场标志的操作
if 'P' in results_list:
if results_list['P'][1] > 60:
car.lib.send_cmd(1500, 1500)
break
# 发送行车数据
car.lib.send_cmd(speed, angle)
# 运行结束，多生成两秒视频
for _ in range(48):
starttime = time.time()
frame = car.read_frame()
img = preprocess_det(frame, (128, 128))
result_det = ssd_lite.predict(img)
frame, results_list = draw_bbox(result_det, frame, label_list, draw_threshold=0.7, frame_shape=None)
endtime = time.time()
fps = int(1/(endtime-starttime))
frame = cv2.putText(frame, 'FPS:%d' % fps, (5, 12), font, 0.4, color, 1)
videoWriter.write(frame)
# 合成视频
videoWriter.release()