1. A method for detecting ground glass objects in a digitized medical image comprising the steps of: providing a digitized medical image comprising a plurality of intensities corresponding to a domain of points on an N-dimensional grid; determining intensity statistics from a plurality of ground glass objects; determining an intensity map of the distance of each point in said image from a mean intensity of said ground glass objects wherein one or more candidate ground glass objects can be identified; determining a circularity value for each candidate ground glass object; and calculating one or more feature values wherein said candidate ground glass object is characterized, wherein said circularity value and features values are adapted to distinguishing an actual ground glass object from a candidate ground glass object.