X-ray or gamma ray systems or devices – Specific application – Absorption
Reexamination Certificate
2006-04-18
2006-04-18
Bruce, David V (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Absorption
C378S008000, C378S901000
Reexamination Certificate
active
07031430
ABSTRACT:
A system and a method for detecting an object, such as an explosive device or material, located within a closed article, such as a piece of luggage or a parcel. The system includes an acquisition subsystem for acquiring information pertaining to a specific object, a reconstruction subsystem for reconstructing acquired information pertaining to the specific object into image data, and a computer-aided detection subsystem adapted for identifying the specific object through the use of differential operators. The method includes obtaining image data of the one object, computing a differential operator for each voxel of the image data, computing eigenvalues and eigenvectors for each of the voxels, and computing a scalar function of the eigenvalues to ascertain whether each of the voxels represents a portion of the one object.
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Avila Ricardo Scott
Blezek Daniel James
Kaucic, Jr. Robert August
Kelliher Timothy Patrick
Leue William MaComber
Bruce David V
Cabou Christian G.
General Electric Company
Powell, III William E.
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