Path Evaluation via HMM on Semantical Occupancy Grid Maps

Korthals T, Exner J, Schöpping T, Hesse M (Accepted)
arXiv:1805.02944.

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Abstract / Notes
Traditional approaches to mapping of environments in robotics make use of spatially discretized representations, such as occupancy grid maps. Modern systems, e.g. in agriculture or automotive applications, are equipped with a variety of different sensors to gather diverse process-relevant modalities from the environment. The amount of data and its associated semantic information demand for broader data structures and frameworks, like semantical occupancy grid maps (SOGMs). This multi-modal representation also calls for novel methods of path planning. Due to the sequential nature of path planning as a consecutive execution of tasks and their ability to handle multi-modal data as provided by SOGMs, Markovian models, such as Hidden Markov Models (HMM) or Partially Observable Markov Decision Processes, are applicable. Furthermore, for these techniques to be applied effectively and efficiently, data from SOGMs must be extracted and refined. Superpixel algorithms, originating from computer vision, provide a method to de-noise and re-express SOGMs in an alternative representation. This publication explores and extends the use of superpixel segmentation as a post-processing step and applies Markovian models for path decoding on SOGMs.
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Korthals T, Exner J, Schöpping T, Hesse M. Path Evaluation via HMM on Semantical Occupancy Grid Maps. arXiv:1805.02944. Accepted.
Korthals, T., Exner, J., Schöpping, T., & Hesse, M. (Accepted). Path Evaluation via HMM on Semantical Occupancy Grid Maps. arXiv:1805.02944
Korthals, T., Exner, J., Schöpping, T., and Hesse, M. (Accepted). Path Evaluation via HMM on Semantical Occupancy Grid Maps. arXiv:1805.02944.
Korthals, T., et al., Accepted. Path Evaluation via HMM on Semantical Occupancy Grid Maps. arXiv:1805.02944.
T. Korthals, et al., “Path Evaluation via HMM on Semantical Occupancy Grid Maps”, arXiv:1805.02944, Accepted.
Korthals, T., Exner, J., Schöpping, T., Hesse, M.: Path Evaluation via HMM on Semantical Occupancy Grid Maps. arXiv:1805.02944. (Accepted).
Korthals, Timo, Exner, Julian, Schöpping, Thomas, and Hesse, Marc. “Path Evaluation via HMM on Semantical Occupancy Grid Maps”. arXiv:1805.02944 (Accepted).
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