TY  - JOUR
ID  - matez2021
T1  - Efficient semantic place categorization by a robot through active line-of-sight selection
A1  - Matez-Bandera, J. L
A1  - Monroy, Javier
A1  - Gonzalez-Jimenez, Javier
JA  - Knowledge-Based Systems
Y1  - 2021
VL  - 240
SN  - 0950-7051
UR  - https://mapir.uma.es/papersrepo/2021/2021_matez_KBS_semantic_place_categorization.pdf
M2  - doi: https://doi.org/10.1016/j.knosys.2021.108022
N2  - In this paper, we present an attention mechanism for mobile robots to face the problem of place categorization. Our approach, which is based on active perception, aims to capture images with characteristic or distinctive details of the environment that can be exploited to improve the efficiency (quickness and accuracy) of the place categorization. To do so, at each time moment, our proposal selects the most informative view by controlling the line-of-sight of the robot’s camera through a pan-only unit. We root our proposal on an information maximization scheme, formalized as a next-best-view problem through a Markov Decision Process (MDP) model. The latter exploits the short-time estimated navigation path of the robot to anticipate the next robot’s movements and make consistent decisions. We demonstrate over two datasets, with simulated and real data, that our proposal generalizes well for the two main paradigms of place categorization (object-based and image-based), outperforming typical camera-configurations (fixed and continuously-rotating) and a pure-exploratory approach, both in quickness and accuracy.
M1  - img_url=https%3A%2F%2Fmapir.uma.es%2Fimagesrepo%2Fpapers%2F2021_jmatez_KBS_efficient_semantic.jpg
M1  - rank_indexname=JCR-2021
M1  - rank_pos_in_category=24
M1  - rank_num_in_category=144
M1  - rank_cat_name=COMPUTER%20SCIENCE%2C%20ARTIFICIAL%20INTELLIGENCE
M1  - impact_factor=8.139
ER  -