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Semantic Mapping for Mobile Robots in Indoor Scenes: A Survey

Journal

INFORMATION
Volume 12, Issue 2, Pages -

Publisher

MDPI
DOI: 10.3390/info12020092

Keywords

semantic mapping; mobile robots; indoor scenes; acquisition of semantic information; map representation

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Sensing and mapping surroundings is crucial for a mobile robot. By attaching semantic information to a geometric map, known as a semantic map, robots can act in accordance with human rules, plan and execute advanced tasks, and communicate with humans on a conceptual level. This survey reviews methods for semantic mapping in indoor scenes and discusses challenges and potential future directions in implementing semantic maps for robots.
Sensing and mapping its surroundings is an essential requirement for a mobile robot. Geometric maps endow robots with the capacity of basic tasks, e.g., navigation. To co-exist with human beings in indoor scenes, the need to attach semantic information to a geometric map, which is called a semantic map, has been realized in the last two decades. A semantic map can help robots to behave in human rules, plan and perform advanced tasks, and communicate with humans on the conceptual level. This survey reviews methods about semantic mapping in indoor scenes. To begin with, we answered the question, what is a semantic map for mobile robots, by its definitions. After that, we reviewed works about each of the three modules of semantic mapping, i.e., spatial mapping, acquisition of semantic information, and map representation, respectively. Finally, though great progress has been made, there is a long way to implement semantic maps in advanced tasks for robots, thus challenges and potential future directions are discussed before a conclusion at last.

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