1. A computer-aided detection method comprising: (a) receiving image data from an imaging device; (b) performing, by a processor, iterations of an iterative segmentation process on the image data, each iterative segmentation process includes (i) ascertaining whether a segment of the image data is normal, (ii) removing the segment from the image data if ascertained to be normal, and (iii) transforming a shape of the segment; and (c) stopping, by the processor, the iterative segmentation process if a stop condition is met.