JAVA物体运动检测_用opencv检测运动，物体太近

This works great .

但是我注意到，它会检测到附近有2个人移动，或者是单人牵手 .

How can I separate them?

# ---- Image from video

gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)

gray = cv2.GaussianBlur(gray, (21, 21), 0)

# if the average frame is None, initialize it

if average is None:

print("[INFO] starting background model...")

average = gray.copy().astype("float")

return 0, image

# accumulate the weighted average between the current frame and

# previous frames, then compute the difference between the current

# frame and running average

cv2.accumulateWeighted(gray, average, 0.5)

frame_delta = cv2.absdiff(gray, cv2.convertScaleAbs(average))

# threshold the delta image, dilate the thresholded image to fill

# in holes, then find contours on thresholded image

thresh = cv2.threshold(frame_delta, var_sis.config["delta_thresh"], 255,

cv2.THRESH_BINARY)[1]

thresh = cv2.dilate(thresh, None, iterations=2)

cnts = cv2.findContours(thresh.copy(), cv2.RETR_EXTERNAL,

cv2.CHAIN_APPROX_SIMPLE)

cnts = cnts[0] if imutils.is_cv2() else cnts[1]

sorted contours = sorted(cnts, key=lambda x: cv2.contourArea(x), reverse=True)

# -----> I got contourns