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A Method for Terrain Cover Classification Using DCT Features  

Lee, Seung-Youn (ADD)
Kwak, Dong-Min (ADD)
Sung, Gi-Yeul (ADD)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.13, no.4, 2010 , pp. 683-688 More about this Journal
Abstract
The ability to navigate autonomously in off-road terrain is the most critical technology needed for Unmanned Ground Vehicles(UGV). In this paper, we present a method for vision-based terrain cover classification using DCT features. To classify the terrain, we acquire image from a CCD sensor, then the image is divided into fixed size of blocks. And each block transformed into DCT image then extracts features which reflect frequency band characteristics. Neural network classifier is used to classify the features. The proposed method is validated and verified through many experiments and we compare it with wavelet feature based method. The results show that the proposed method is more efficiently classify the terrain-cover than wavelet feature based one.
Keywords
Autonomous Navigation; Discrete Cosine Transform; Wavelet Transform; Terrain Cover Classification;
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