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“On-the-spot Training” for Terrain Classification in Autonomous Air-Ground Collaborative Teams

Publication date:

Authors:

  • Presented at: International Symposium on Experimental Robotics (ISER), Tokyo, Japan, October 2016
  • Publication date: 2016

We consider the problem of performing rapid training of a terrain classier in the context of a collaborative robotic search and rescue system. Our system uses a vision-based flying robot to guide a ground robot through unknown terrain to a goal location by building a map of terrain class and elevation. However, due to the unknown environments present in search and rescue scenarios, our system requires a terrain classifier that can be trained and deployed quickly, based on data collected on the spot. We investigate the relationship of training set size and complexity on training time and accuracy, for both feature-based and convolutional neural network classifiers in this scenario. Our goal is to minimize the deployment time of the classifiers in our terrain mapping system within acceptable classifcation accuracy tolerances. So we are not concerned with training a classifier that generalizes well, only one that works well for this particular environment. We demonstrate that we can launch our aerial robot, gather data, train a classifier, and begin building a terrain map after only 60 seconds of flight.

Reference

  • Detailed record: https://infoscience.epfl.ch/record/221506?ln=en
  • EPFL-CONF-221506
Reference
Read the paper
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