3-dimensional model creation methods and apparatuses
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United States of America Patent
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Jan 31, 2017
Grant Date -
Jul 3, 2014
app pub date -
Dec 23, 2013
filing date -
Dec 27, 2012
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Abstract
Disclosed are methods and apparatuses for creating a 3-Dimensional model for objects in an inspected luggage in a CT system. The method includes acquiring slice data of the luggage with the CT system; interpolating the slice data to generate 3D volume data of the luggage; performing unsupervised segmentation on the 3D volume data of the luggage to obtain a plurality of segmental regions; performing isosurface extraction on the plurality of segmental regions to obtain corresponding isosurfaces; and performing 3D surface segmentation on the isosurfaces to form a 3D model for the objects in the luggage. The above solutions can create a 3D model for objects in the inspected luggage in a relatively accurate manner, and thus provide better basis for subsequent shape feature extraction and security inspection, and reduce omission factor.
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Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- NUCTECH COMPANY LIMITED;TSINGHUA UNIVERSITY
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Chen, Zhiqiang | Beijing, CN | 403 | 2425 |
Gu, Jianping | Beijing, CN | 55 | 220 |
Huang, Qingping | Beijing, CN | 53 | 149 |
Li, Qiang | Beijing, CN | 803 | 10868 |
Zhang, Li | Beijing, CN | 2449 | 32460 |
Zhao, Ziran | Beijing, CN | 240 | 1234 |
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