Patent ID: 8953902
Filing Date: 2015-02-10
Classification: G06T

Abstract:
1. A method for imaging an object, said method comprising: acquiring image data of the object as the object moves through an imaging system in a first direction, wherein the image data includes a plurality of original voxels each having an original CT number; identifying, using a processing device, a subset of the original voxels based on at least one of an original CT number and a location of each original voxel; applying, using the processing device, an anisotropic smoothing filter to the identified original voxels in the subset to generate a set of smoothed voxels each having a smoothed CT number, wherein applying an anisotropic smoothing filter comprises smoothing the original CT number of each identified original voxel based on the original CT numbers of a set of original voxels in the same x-y plane as the identified original voxel, wherein the x-y plane is orthogonal to the first direction such that the smoothing is performed in a plane that has a predetermined orientation that is not dependent on characteristics of the plurality of original voxels; generating, using the processing device, smoothed image data by combining the original voxels and the smoothed voxels, wherein generating smoothed image data comprises replacing each identified original voxel in the image data with the associated smoothed voxel when the smoothed CT number of the smoothed voxel is within a predetermined range of smoothed CT numbers and greater than an original CT number of the identified original voxel; and analyzing the smoothed image data to determine whether the object contains contraband.