ComDesignProject/example_reid.py

119 lines
4.8 KiB
Python

import torch
from torchvision import transforms
import numpy as np
import cv2
import os
import param
from detect import YOLOv7
from deep_sort import deep_sort as dsort
def get_img_test(raw_img:np.array):
raw_transform = transforms.Compose([transforms.ToPILImage(),
transforms.Resize((360,640)),
transforms.Pad((0,(640-360)//2)),])
return raw_transform(raw_img)
def opencv_box_plot(img:cv2.Mat,pred_img:np.array):
pred_img = pred_img.astype(np.uint)
for info in pred_img:
x1,y1,x2,y2 = info[0],info[1],info[2],info[3]
cv2.rectangle(img,(x1,y1-140),(x2,y2-140),(255,0,0),2)
cv2.imshow("test",img)
cv2.waitKey(0)
cv2.imwrite("result.png",img)
routine = {}
def opencv_sort_plot(img:cv2.Mat,pred_yolo:np.array,pred_sort:np.array):
for info in pred_yolo:
x1,y1,x2,y2 = int(info[0]),int(info[1]),int(info[2]),int(info[3])
cv2.rectangle(img,(x1,y1),(x2,y2),(0,255,0),1)
for info in pred_sort:
x1,y1,x2,y2,id = info[0],info[1],info[2],info[3],info[4]
cxy = (int((x1+x2)/2),int((y1+y2)/2))
color = (int(id%3*100),int(id%4*75),int(id%5*50))
cv2.putText(img,str(id),cxy, cv2.FONT_HERSHEY_PLAIN, 1.0, color, 2)
if routine.get(id) is None:
routine[id] = [cxy]
else:
for i in range(1,len(routine[id])):
cv2.line(img,routine[id][i-1],routine[id][i],color,1)
cv2.line(img,routine[id][-1],cxy,color,1)
routine[id].append(cxy)
cv2.imshow("test",img)
cv2.waitKey(1)
return img
def extractidfeature(id_path:str,extractor):
img_id = cv2.imread(id_path)
tensor_id = extractor([img_id])
return tensor_id
# example
if __name__ == '__main__':
my_option = param.Parameters()
print(torch.__version__)
print(my_option.device)
query_path = f"./mydataset/query/cam{my_option.query_index}/" # query from .jpg photos
gallary_path = f"mydataset/video/cam{my_option.gallary_index}.mp4" # source from mp4 via yolo
output_path = f"output{my_option.gallary_index}_{my_option.query_index}.mp4" # output file path
ids = []
paths = os.listdir(query_path)
# load detection model and deepsort model
model = YOLOv7(my_option)
deepsort = dsort.DeepSort(model_path=my_option.weights_reid,model_config="self",use_cuda=(torch.device("cuda:0") == my_option.device))
# get query feature id
for p in paths:
ids.append(extractidfeature(query_path+p,deepsort.extractor))
with torch.no_grad():
sources = cv2.VideoCapture(gallary_path)
target = cv2.VideoWriter(output_path,cv2.VideoWriter_fourcc('m', 'p', '4', '2'),24,(640,640))
frame_counter = 0
while True:
ret,frame = sources.read()
if ret is False:
break
img = get_img_test(frame) # get image as torch.Tensor with size of [1,1,640,640]
img_tensor = transforms.ToTensor()(img).unsqueeze(dim=0).to(my_option.device)
result = model.detect(img_tensor) # get the sequence of result
result = result[0].detach().cpu().numpy() # the single img is index 0
bbox_xywhs = []
confs = []
for xyxycc in result:
xywh = deepsort._xyxy_to_xywh(xyxycc[0:4])
conf = xyxycc[4]
clas = int(xyxycc[5])
bbox_xywhs.append(xywh[:])
confs.append(conf)
dpsort, features = deepsort.update(bbox_xywh=np.array(bbox_xywhs),confidences=np.array(confs),ori_img=np.array(img))
img_drawing = np.array(img)
# ReID match
for i in range(len(features)):
feature_distances = []
for j in range(len(ids)):
feature_distances.append(np.mean(np.power(features[i]-ids[j],2)))
min_fdis = min(feature_distances)
if min_fdis < 0.2:
cx = int((result[i][0]+result[i][2])/2)
cy = int((result[i][1]+result[i][3])/2)
index_near = feature_distances.index(min_fdis)
color = (int(index_near%2*100),int(index_near%3*75),int(index_near%4*50))
cv2.putText(img_drawing,f"{paths[index_near]}",(cx-10,cy-10), cv2.FONT_HERSHEY_PLAIN, 1, color, 2)
cv2.putText(img_drawing,f"{min_fdis:>.4f}",(cx-10,cy-30), cv2.FONT_HERSHEY_PLAIN, 1, color, 2)
# Final plot and show video
frame_t = opencv_sort_plot(img_drawing,result,dpsort)
target.write(frame_t)
frame_counter += 1
# save the video and end the program
target.release()