1. A computer-implemented method for generating a contour corresponding to a region of interest within an image, the method comprising: generating a second plurality of data points from a first plurality of data points, the second plurality being less than the first plurality, the first plurality of data points being representative of a plurality of contours corresponding to the region of interest, each contour having a corresponding plane; and generating a new contour in a new plane based on the second plurality of data points, the new contour corresponding to the region of interest; and wherein the method steps are performed by a processor.