Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Automated X-ray Image Analysis for Cargo Security: Critical Review and
  Future Promise   We review the relatively immature field of automated image analysis for X-ray
cargo imagery. There is increasing demand for automated analysis methods that
can assist in the inspection and selection of containers, due to the
ever-growing volumes of traded cargo and the increasing concerns that customs-
and security-related threats are being smuggled across borders by organised
crime and terrorist networks. We split the field into the classical pipeline of
image preprocessing and image understanding. Preprocessing includes: image
manipulation; quality improvement; Threat Image Projection (TIP); and material
discrimination and segmentation. Image understanding includes: Automated Threat
Detection (ATD); and Automated Contents Verification (ACV). We identify several
gaps in the literature that need to be addressed and propose ideas for future
research. Where the current literature is sparse we borrow from the
single-view, multi-view, and CT X-ray baggage domains, which have some
characteristics in common with X-ray cargo.

26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
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The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
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The categories of this paper are: dg-ga
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The categories of this paper are: eess
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The categories of this paper are: nucl-ex