Simple Pattern Detection using streaming video from a phone through wifi. IpWebcam android app is used to interface this operation. This implementation is useful to make a prototype of Realtime Inspection Support Drone. It is done by simply extracting the contour information in each frames in the video and compare with the requirement.
Base Tutorial: https://www.pyimagesearch.com/2015/05/04/target-acquired-finding-targets-in-drone-and-quadcopter-video-streams-using-python-and-opencv/