1. A computer-implemented method for a radiotherapy device utilizing a processor executing computer-executable instructions for generating a contour corresponding to a region of interest within an image of a patient, the method comprising: receiving a plurality of initial point sets, each initial point set corresponding to a contour and comprising a plurality of input points; generating a first plurality of data points based on the received plurality of initial point sets, 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; generating a second plurality of data points from the first plurality of data points, the second plurality being less than the first plurality; reducing the first plurality of points to a plurality of shape-salient points; 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.