Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: 3D Sensing of a Moving Object with a Nodding 2D LIDAR and Reconfigurable
  Mirrors   Perception in 3D has become standard practice for a large part of robotics
applications. High quality 3D perception is costly. Our previous work on a
nodding 2D Lidar provides high quality 3D depth information with low cost, but
the sparse data generated by this sensor poses challenges in understanding the
characteristics of moving objects within an uncertain environment. This paper
proposes a novel design of the nodding Lidar but provides dynamic
reconfigurability in terms of limiting the field of view of the sensor using a
set of optical mirrors. It not only provides denser scans, but it also achieves
a three times higher scan update rate. Additionally, we propose a novel
calibration mechanism for this sensor and prove its effectiveness for dynamic
object detection and tracking.

37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin