3-dimensional model creation methods and apparatuses

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United States of America Patent

PATENT NO 9557436
APP PUB NO 20140185742A1
SERIAL NO

14138447

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Abstract

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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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Patent Owner(s)

  • NUCTECH COMPANY LIMITED;TSINGHUA UNIVERSITY

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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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