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pre-Processing tools

VideoReader

Simple class to read a capture, play/pause/backward some frames This class can be used as main template for other programs

extractSamples

TODO Read a file, detect background, split in video extracts containing movements

stabilize

Given a "reference" polygon, stabilize image by forcing polygon coordinates

detection tools

diffImg

Some test in diffing two images to extract movement and polygons in them

shapes

shape detection in a single image

diffThreshold

Same tests, with first frame as reference polygon detection, "follower" algorithm to detect trajectory of polygons TODO : retry with another bg subtractor and better "main loop"

BackgroundSubtractorMOG

First tests with BackgroundSubtractorMOG method to extract background Seems to be CPU consuming

lineFilter

Another try : detect crossing thru 2 reference lines May works fine if people don't collide, but still need work on way to deduce movement direction from various cases

  • Gate : class to handle "2 lines" concept in lineFilter

other

History

class to keep track of several steps in a program

pedestrians

Body detection, from http://www.pyimagesearch.com/2015/11/09/pedestrian-detection-opencv Works fine only in front view

flow

old test to detect and track polygons

historyTest

test code on storing data with ttl