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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Matthies, L. Balch, T. Wilcox, B. |
| Copyright Year | 1997 |
| Description | Author affiliation: Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA (Matthies, L.) |
| Abstract | A new laser-based optical sensor system that provides hazard detection for planetary rovers is presented. The sensor can support safe travel at speeds up to 12 cm/second for large (1 m) rovers in full sunlight on Earth or Mars. This is at least a 5 times improvement over the sensor aboard NASA's Mars Pathfinder rover. The system overcomes limitations in the older design that require image differencing to detect a laser stripe in full sun. The new system ensures the projected laser light is detectable in a single image, eliminating the requirement for additional difference images. The improvement is significant since any reduction in image gathering or processing time provides for faster rover motion. The savings are even more important in the case of a Mars rover since power and radiation-hardening requirements lead to severely constrained computational resources. The paper includes a thorough discussion of design details and tradeoffs for optical hazard sensing that will benefit future efforts in this area. |
| Starting Page | 859 |
| Ending Page | 866 |
| File Size | 945805 |
| Page Count | 8 |
| File Format | |
| ISBN | 0780336127 |
| DOI | 10.1109/ROBOT.1997.620142 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1997-04-25 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Hazards Optical detectors Mars Optical sensors Cameras Propulsion Optical design Stereo vision Power system reliability Laboratories |
| Content Type | Text |
| Resource Type | Article |
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