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Heterogeneous Map Merging: State of the Art

Department of Artificial Intelligence and Systems Engineering, Riga Technical University, Riga LV-1658, Latvia
Robotics 2019, 8(3), 74;
Received: 24 April 2019 / Revised: 14 August 2019 / Accepted: 15 August 2019 / Published: 20 August 2019
(This article belongs to the Special Issue Latest Artificial Intelligence Research Output 2018)
Multi-robot mapping and environment modeling have several advantages that make it an attractive alternative to the mapping with a single robot: faster exploration, higher fault tolerance, richer data due to different sensors being used by different systems. However, the environment modeling with several robotic systems operating in the same area causes problems of higher-order—acquired knowledge fusion and synchronization over time, revealing the same environment properties using different sensors with different technical specifications. While the existing robot map and environment model merging techniques allow merging certain homogeneous maps, the possibility to use sensors of different physical nature and different mapping algorithms is limited. The resulting maps from robots with different specifications are heterogeneous, and even though some research on how to merge fundamentally different maps exists, it is limited to specific applications. This research reviews the state of the art in homogeneous and heterogeneous map merging and illustrates the main research challenges in the area. Six factors are identified that influence the outcome of map merging: (1) robotic platform hardware configurations, (2) map representation types, (3) mapping algorithms, (4) shared information between robots, (5) relative positioning information, (6) resulting global maps. View Full-Text
Keywords: robotic mapping; map merging; multi-robot systems; heterogeneous robots robotic mapping; map merging; multi-robot systems; heterogeneous robots
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MDPI and ACS Style

Andersone, I. Heterogeneous Map Merging: State of the Art. Robotics 2019, 8, 74.

AMA Style

Andersone I. Heterogeneous Map Merging: State of the Art. Robotics. 2019; 8(3):74.

Chicago/Turabian Style

Andersone, Ilze. 2019. "Heterogeneous Map Merging: State of the Art" Robotics 8, no. 3: 74.

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