1. One or more non-transitory computer-readable media comprising computer-executable instructions for performing a method comprising: receiving a three-dimensional digital representation for a polyp candidate; choosing a virtual camera viewpoint for the polyp candidate as a point along a centerline in a virtual colon in which the polyp candidate lies, wherein the viewpoint is chosen using a maximum viewpoint entropy technique; applying virtual light from a lighting direction to the polyp candidate; generating a two-dimensional projection image of the polyp candidate from the virtual camera viewpoint from the three-dimensional digital representation of the polyp candidate; determining whether the polyp candidate is a polyp via processing the two-dimensional projection image, wherein determining whether the polyp candidate is a polyp comprises: extracting wavelet features from the image; and determining whether the polyp candidate is a false positive via application of the wavelet features to a committee classifier; and responsive to determining whether the polyp candidate is a false positive, providing an indication of whether the polyp candidate is a polyp.