Patent ID: 7692650

Claim:
A scanner for (a) scanning objects and generating a plurality of volumetric multi-energy CT images and a label image representing detected results from a threat detection system, each image being represented by a number of voxels, with each voxel of each image being represented by a predetermined number of bits representing information associated with the voxel of that image, and for (b) displaying each of the multi-energy CT images and label image as a result of scanning objects and using a threat detection system, comprising: a processor configured so as to: a. combine, for each voxel, the bits representing the voxel for all of the CT images and label image so as to create a combined set of voxels each of N bits representing information included in the voxel for all of the CT images and label image; and b. nonlinearly transform, for each combined voxel, the N bits to M bits representing the corresponding voxel in an index image, wherein M<N, and wherein the index image contains sufficient information for separately displaying each CT image and label image.