如何在质心跟踪器中水平跟踪

问题描述

你好，我需要更改质心跟踪器的逻辑，以便它可以从左向右跟踪人，反之亦然，而不是上下跟踪

我尝试在循环中将y更改为x，并且它不起作用，请使用质心跟踪器将（1）旧对象，质心与（2）新计算的对象质心相关联

cv2.line(frame,(0,H // 2),(W,255,255),2)

objects = ct.update(rects)

# loop over the tracked objects
for (objectID,centroid) in objects.items():
    # check to see if a trackable object exists for the current
    # object ID
    to = trackableObjects.get(objectID,None)

    # if there is no existing trackable object,create one
    if to is None:
        to = TrackableObject(objectID,centroid)

    # otherwise,there is a trackable object so we can utilize it
    # to determine direction
    else:
        # the difference between the y-coordinate of the *current*
        # centroid and the mean of *prevIoUs* centroids will tell
        # us in which direction the object is moving (negative for
        # 'up' and positive for 'down')
        y = [c[1] for c in to.centroids]
        direction = centroid[1] - np.mean(y)
        to.centroids.append(centroid)

        # check to see if the object has been counted or not
        if not to.counted:
            # if the direction is negative (indicating the object
            # is moving up) AND the centroid is above the center
            # line,count the object
            if direction < 0 and centroid[1] < H // 2:
                totalUp += 1
                to.counted = True

            # if the direction is positive (indicating the object
            # is moving down) AND the centroid is below the
            # center line,count the object
            elif direction > 0 and centroid[1] > H // 2:
                totalDown += 1
                to.counted = True

    # store the trackable object in our dictionary
    trackableObjects[objectID] = to

    # draw both the ID of the object and the centroid of the
    # object on the output frame
    text = "ID {}".format(objectID)
    cv2.putText(frame,text,(centroid[0] - 10,centroid[1] - 10),cv2.FONT_HERShey_SIMPLEX,0.5,0),2)
    cv2.circle(frame,(centroid[0],centroid[1]),4,-1)

# construct a tuple of information we will be displaying on the
# frame
info = [
    ("Up",totalUp),("Down",totalDown),("Status",status),]

解决方法

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