发明名称 |
3-DIMENSIONAL MODEL CREATION METHODS AND APPARATUSES |
摘要 |
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. |
申请公布号 |
US2014185742(A1) |
申请公布日期 |
2014.07.03 |
申请号 |
US201314138447 |
申请日期 |
2013.12.23 |
申请人 |
Nuctech Company Limited ;Tsinghua University |
发明人 |
CHEN Zhiqiang;ZHANG Li;ZHAO Ziran;LI Qiang;GU Jianping;HUANG Qingping |
分类号 |
G01V5/00;G06T17/00 |
主分类号 |
G01V5/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method for creating a 3-Dimensional model for objects in an inspected luggage in a CT system, comprising:
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. |
地址 |
Beijing CN |