Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Real-time Tracking-by-Detection of Human Motion in RGB-D Camera Networks   This paper presents a novel real-time tracking system capable of improving
body pose estimation algorithms in distributed camera networks. The first stage
of our approach introduces a linear Kalman filter operating at the body joints
level, used to fuse single-view body poses coming from different detection
nodes of the network and to ensure temporal consistency between them. The
second stage, instead, refines the Kalman filter estimates by fitting a
hierarchical model of the human body having constrained link sizes in order to
ensure the physical consistency of the tracking. The effectiveness of the
proposed approach is demonstrated through a broad experimental validation,
performed on a set of sequences whose ground truth references are generated by
a commercial marker-based motion capture system. The obtained results show how
the proposed system outperforms the considered state-of-the-art approaches,
granting accurate and reliable estimates. Moreover, the developed methodology
constrains neither the number of persons to track, nor the number, position,
synchronization, frame-rate, and manufacturer of the RGB-D cameras used.
Finally, the real-time performances of the system are of paramount importance
for a large number of real-world applications.

6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio