1. A method of tracking an object in a plurality of image frames, said method comprising: receiving an initial contour associated with the object in a first one of the image frames, said initial contour representing an edge of the object; determining a plurality of first measurement points distributed non-uniformly along the initial contour, said first measurement points being biased to relatively high information portions of the initial contour; estimating a set of subsequent contours in a second one of the image frames, each of said subsequent contours being estimated from the initial contour; determining) an identical plurality of second measurement points along each of the set of estimated subsequent contours in the second image frame using the non-uniform distribution of the first measurement points in the first image frame; and selecting at least one contour of the set of estimated subsequent contours using a confidence measure determined from the plurality of second measurement points as distributed along the selected subsequent contour, said selected subsequent contour being used to track the object in the second image frame.