Laminographic system for 3D imaging and inspection
First Claim
1. A method of analyzing a three dimensional volume of an object using a computer and a memory, comprising the steps of:
- generating radiation using a radiation source;
positioning a plurality of detectors to receive said radiation from said radiation source such that each said detector receives said radiation along paths oriented at different angles with respect to each other;
each said detector comprising of a first part and a second part, said plurality of detectors so arranged that none of said parts are parallel, further each said part of said detector comprises an array of small elemental or pixel detectors;
interposing said object between said detectors and said radiation source;
translating said object relative to said detectors and said radiation source;
recording data repetitively from said detectors as said object is translated relative to said radiation source and said detectors;
storing said data in memory; and
using a computer for analyzing a three dimensional volume of said object from said data.
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Accused Products
Abstract
A digital Laminographic or Tomosynthesis method is described for use in the detection of explosives concealed in baggage. The method uses at least one source of x-ray and at least two sets of detectors, preferably more to generate 3D images of high detail. The data from the detectors can be simply time delayed and summed up to generate high definition image of layers through the bag. This leads to very high speed of 3D imaging, the same speed as in regular x-ray scanners. In addition, there is no rotating gantry, the systems is simple, compact, relatively inexpensive, and can be used to generate 3D images of large shipping containers.
91 Citations
13 Claims
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1. A method of analyzing a three dimensional volume of an object using a computer and a memory, comprising the steps of:
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generating radiation using a radiation source; positioning a plurality of detectors to receive said radiation from said radiation source such that each said detector receives said radiation along paths oriented at different angles with respect to each other;
each said detector comprising of a first part and a second part, said plurality of detectors so arranged that none of said parts are parallel, further each said part of said detector comprises an array of small elemental or pixel detectors;interposing said object between said detectors and said radiation source; translating said object relative to said detectors and said radiation source; recording data repetitively from said detectors as said object is translated relative to said radiation source and said detectors; storing said data in memory; and using a computer for analyzing a three dimensional volume of said object from said data. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for analyzing a three dimensional volume of an object
using a computer and a memory, further comprising of: -
a radiation source to generate radiation; plurality of detectors positioned to receive said radiation from said radiation source such that each said detector receives said radiation along paths oriented at different angles with respect to each other;
each said detector comprising of a first part and a second part, said plurality of detectors so arranged that none of said parts are parallel further each said part of said detector comprises an array of small elemental or pixal detectors;means to interpose said object between said detectors and said radiation source; means to translate said object relative to said detectors and said radiation source; means to record data repetitively from said detectors as said object is translated relative to said radiation source and said detectors; means to store said data in memory; and computer for analyzing a three dimensional volume of said object from said data. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification