Method for segmenting and recognizing image in industry radiation imaging |
Title： |
| Method for segmenting and recognizing image in industry radiation imaging |
|
Application Number： |
02801158 |
Application Date： |
2002/04/12 |
Announcement Date： |
2003/12/10 |
Pub. Date： |
2006/04/26 |
Publication Number： |
1461409 |
Announcement Number： |
1253710 |
Grant Date： |
2006-4-26 |
Granted Pub. Date： |
2006-4-26 |
ApplicationType： |
Invention |
State/Country： |
CN[China] |
IPC： |
G01N 23/04, G06K 9/46, G06T 1/00 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Jin Hui, Zhang Li, Cheng Zhiqiang |
Key Words： |
segment, recognize, image, industry radiation imaging |
Abstract： |
A method for segmenting and recognizing an image in industry radiation imaging, comprising the following steps: pretreating the original image to eliminate noise; performing logarithmic transformation to obtain linear attenuation coefficient image; performing edge detection; performing edge track, tracking the points having nearly the same edge values to obtain the edge fragments; performing edge connection, connecting the edge fragments having nearly the same average edge values; enclosing the edges; filling regions and displaying special regions. As compared with the prior art, the invention is able to distinguish the overlapped objects in an image effectively, increasing the efficiency of image checking, and detecting the hidden contraband articles more easily. |
Claim： |
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Priority： |
CN 2001-4-12 01110623.9 |
PCT： |
National Entry Date: 2002/12/10 International Application No: PCT/CN2002/000257 |
LegalStatus： |
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