1. Bajracharya, M. 2002. Single image-based hazard detection for a planetary lander. In Proc. World Automation Congress. Orlando, FL.
2. Cheng, Y., Johnson, A.E., Matthies, L.H., and Wolf, A. 2000. Passive image-based hazard avoidance for spacecraft safe landing. In Proc. i-SAIRAS Conf. Montreal, Canada.
3. Gennery, D.B. 1999. Traversability analysis and path planning for a planetary rover. Autonomous Robots, 6:131–146.
4. Goldberg, S.B., Maimone, M.W., and Matthies, L.H. 2002. Stereo vision and rover navigation software for planetary exploration. In Proc. IEEE Aerospace Conf. Big Sky, MT.
5. Howard, A. and Seraji, H. 2001. Vision-based terrain characterization and traversability assessment. Journal of Robotic Systems, 18(10):577–587