This is a simple and quite shitty program for testing motion detection using Vision framework.

The main work is done inside video processing pipeline that consists of following sections

Those can be: Live camera feed or playback of pre-recorded file

preprocessing applies bunch of CIFilters in order to (ideally) improve video analysis

This step calculates optical flow between two frames on a per-pixel basis

If we have frames containing optical flow then we need to visualise it and convert it back to pixels