1. An imaging apparatus for automatic occlusion detection, comprising: a processing unit; and memory comprising computer executable instructions that when executed by the processing unit perform operations, the operations comprising: generating volumetric data representative of an object, the object resting on a surface during an examination from which the volumetric data is generated; projecting the volumetric data onto an object plane parallel to the surface to generate a first two-dimensional image representative of the object; determining an orientation of the object from the first two-dimensional image; segmenting a second two-dimensional image representative of the object to generate a segmented image based upon one or more segmentation parameters, at least one of the one or more segmentation parameters dynamically adjusted as a function of the orientation of the object; identifying, from the segmented image, a potential occlusion region in the second two-dimensional image; and identifying one or more features of the potential occlusion region based upon one or more feature extraction parameters, at least one of the one or more feature extraction parameters dynamically adjusted as a function of the orientation of the object.