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Title: Characterizing Complexity of Containerized Cargo X-ray Images

X-ray imaging can be used to inspect cargos imported into the United States. In order to better understand the performance of X-ray inspection systems, the X-ray characteristics (density, complexity) of cargo need to be quantified. In this project, an image complexity measure called integrated power spectral density (IPSD) was studied using both DNDO engineered cargos and stream-of-commerce (SOC) cargos. A joint distribution of cargo density and complexity was obtained. A support vector machine was used to classify the SOC cargos into four categories to estimate the relative fractions.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
OSTI Identifier:
1305809
Report Number(s):
LLNL-TR--700977
TRN: US1601803
DOE Contract Number:
AC52-07NA27344; AC05-06OR23100; IAA HSHQDC-12-X-00341
Resource Type:
Technical Report
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE; US Dept. of Homeland Security (DHS). Domestic Nuclear Detection Office
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; X-RAY SPECTRA; CARGO; DENSITY; IMPORTS; SPECTRAL DENSITY; IMAGES; X RADIATION; DISTRIBUTION; INSPECTION; PERFORMANCE