Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Shopper Analytics: a customer activity recognition system using a
  distributed RGB-D camera network   The aim of this paper is to present an integrated system consisted of a RGB-D
camera and a software able to monitor shoppers in intelligent retail
environments. We propose an innovative low cost smart system that can
understand the shoppers' behavior and, in particular, their interactions with
the products in the shelves, with the aim to develop an automatic RGB-D
technique for video analysis. The system of cameras detects the presence of
people and univocally identifies them. Through the depth frames, the system
detects the interactions of the shoppers with the products on the shelf and
determines if a product is picked up or if the product is taken and then put
back and finally, if there is not contact with the products. The system is low
cost and easy to install, and experimental results demonstrated that its
performances are satisfactory also in real environments.

8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat