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Matthies, L.

Publications and source records attributed to Matthies, L..

33 records · Page 2

Precise Image-Based Motion Estimation for Autonomous Small Body Exploration

Because they hold answers to questions about the origin of our solar system, comets and asteroids play a prominent role in NASA's roadmap for solar system exploration. This paper presents an algorithm for autonomous onboard motion estimation that will enable the precision guidance and landing necessary for small body sample return.

precision

Miniature Robots for Space and Military Mission

This paper describes the technologies under development, the applications where these technologies are relevant to both space and military missions, and the status of the most recent technology demonstrations in terrestrial scenarios.

Miniature

A Photo-Realistic 3-D Mapping System for Extreme Nuclear Environments: Chornobyl

We present a novel stereoscopic mapping system for use in nuclear accident settings. First we discuss a radiation shielded sensor array desigtned to tolerate 10(sup 6)R of cumulative dose. Next we give procedures to ensure timely, accurate range estimation using trinocular stereo. Finally, we review the implementation of a system for the integration of range information into a 3-D, textured, metrically accurate surface mesh.

3-D mapping Chornobyl robot Pioneer robot Pioneer

Fast Optical Hazard Detection for Planetary Rovers Using Multiple Spot Laser Triangulation

A new laser-based optical sensor system that provides hazard detection for planetary rovers is presented. It is anticipated that the sensor can support safe travel at speeds up to 6cm/second for large (1m) rovers in full sunlight on Earth or Mars. The system overcomes limitations in an older design that require image differencing ot detect a laser stripe in full sun.

laser based optical sensor system planetary rovers

Mobile Robot Localization by Remote Viewing of a Colored Cylinder

A system was developed for the Mars Pathfinder rover in which the rover checks its position by viewing the angle back to a colored cylinder with different colors for different angles. The rover determines distance by the apparent size of the cylinder.

robots planetary exploration remote sensing positi