Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: DefocusTracker: A modular toolbox for defocusing-based, single-camera,
  3D particle tracking   The need for single-camera 3D particle tracking methods is growing, among
others, due to the increasing focus in biomedical research often relying on
single-plane microscopy imaging. Defocusing-based methods are ideal for a
wide-spread use as they rely on basic microscopy imaging rather than requiring
additional non-standard optics. However, a wide-spread use has been limited by
the lack of accessible and easy-to-use software. DefocusTracker is an
open-source toolbox based on the universal principles of General Defocusing
Particle Tracking (GDPT) relying solely on a reference look-up table and image
recognition to connect a particle's image and its respective out-of-plane depth
coordinate. The toolbox is built in a modular fashion, allowing for easy
addition of new image recognition methods, while maintaining the same workflow
and external user interface. DefocusTracker is implemented in MATLAB, while a
parallel implementation in Python is in the preparation.

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The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol
2
The categories of this paper are: math
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
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The categories of this paper are: stat