Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6867602 | Robotics and Autonomous Systems | 2015 | 10 Pages |
Abstract
Non-geometric terrain properties surrounding a planetary exploration rover can be exploited to improve autonomous mobility of the rover. This paper shows a method to classify non-geometric terrain properties using image sequences obtained from onboard cameras. Our method is based on a Dynamic Texture analysis, which is a technique to estimate scene motion in image sequences. Using Dynamic Textures, we can incorporate a motion cue to classify not only soil types but also the velocities of a rover relative to terrain surface representing slippage due to terrains. First, we briefly show a learning algorithm for Dynamic Textures. Then we propose a combined distance measure for classification. Combining distance measures is useful to handle different properties of terrain, that is, a static property such as soil types and a dynamic property such as the velocities. The effectiveness of the combined distance measure for improving classification performance is demonstrated through experimental runs of two rover testbeds on sand pits.
Related Topics
Physical Sciences and Engineering
Computer Science
Artificial Intelligence
Authors
Koki Fujita, Naoyuki Ichimura,