Plot path of multiple objects using bounding box/centroids

I would like to generate paths for multiple objects detected in a video. Can anyone please help. Thanks

% Generate centroid and bounding box of objects

[~, centroids, bbox] = hblob.step(th_image);

result = insertShape(frame, 'Rectangle', bbox, 'Color', 'green');

% Display the number of cars found in the video frame

result = insertText(result, [10 10], numCars, 'BoxOpacity', 1, 'FontSize', 14);