Romain Bourdon

OpenCV's computer vision techniques are used to extract joint angles of animals from videos. The application uses cascading classifiers to detect the legs of an animal which in this case is a horse. Frames of the video in which legs have been detected are then grey scaled and put through a canny edge detection algorithm. Active contours are then applied to the image that attach to the edges of the legs. The joint angles are calculated by using the dot product between the front and end of a contour and by taking the start of one contour to the start of the next contour in the series. The angles are then outputted into a file. A unity script attached to the rig joints of a model then sets a desired angle from the output file and interpolates from the current angle of the joint to the desired angle, creating animation.