Vision tracking: Did they get it right?

[davidalln]

Originally Posted by TD-Linux

- From what I can tell, the ellipse detection uses the edges of ellipses - meaning that it will detect two ellipses around the inner and outer edges of the black circle. While this is perfectly acceptable when one bases navigation of the center of the circles, it has to potential to throw a wrench into distance algorithms (e.g. inverse perspective transform). Some sort of algorithm will be needed to pick one of the edges (preferably the outer one).

Correct me if I'm wrong as I don't have the code in front of me, but doesn't the example find the target based on locating two concentric ellipses and then find the data such as the height and width and (x,y)? Therefore, the target will essentially act as one circle that can be used for distance algorithms.