Methods for explosive detection with multiresolution computed tomography data
OwnerDimitrios Ioannouinventor
Life of this patent
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Abstract
Disclosed is an x-ray computed tomography inspection system having a computer processor configured to execute one or more specialized software-based image processing and/or detection methods. Among other features and benefits, the new methods create low-resolution SP images from low-resolution CT volumetric data, thus significantly improving throughput. An image processing and/or detection method segments and analyzes the generated SP images and decides whether the previously requested low resolution reconstructed CT image(s) are adequate, or whether additional higher resolution reconstructed CT images are needed.
Claims12
A method, comprising:
- reconstructing a low-resolution computed tomography (“CT”) volume from raw volumetric CT data representative of a scannable object;
- obtaining a two-dimensional, low-resolution scan projection (SP) image from the low-resolution CT volume, wherein the SP image includes an SP region;
- and
- determining whether a high-resolution CT image of only a portion of the scannable object that corresponds to the SP region is needed.
A method, comprising:
- obtaining raw volumetric CT data from a scan of a scannable object;
- obtaining a low-resolution CT volume from reconstruction of the raw volumetric CT data;
- and
- obtaining a scan projection (SP) image from re-projection of the low-resolution CT volume.
Dependencies are inferred from the claim text.