1. A computer-implemented method for segmenting medical images acquired by an imaging device, the method comprising: receiving an image acquired by the imaging device from a memory; identifying at least one landmark point within the image, each landmark point being a reference point corresponding to a known anatomical landmark; selecting an image point in the image; determining, by the processor, at least one feature for the image point relative to the at least one landmark point, the at least one feature including a set of relative intensity values, each relative intensity value indicative of an intensity of the image point relative to an intensity of the at least one landmark point; and associating, by the processor, the image point with an anatomical structure by using a classification model based on the at least one determined feature.