Mark Schadler

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Fully autonomous exploration and mobile manipulation in rough terrain are still beyond the state of the art—robotics challenges and competitions are held to facilitate and benchmark research in this direction. One example is the DLR SpaceBot Cup 2013, for which we developed an integrated robot system to semi-autonomously perform planetary exploration and(More)
Mapping, real-time localization, and path planning are prerequisites for autonomous robot navigation. These functions also facilitate situation awareness of remote operators. In this paper, we propose methods for efficient 3D mapping and real-time 6D pose tracking of autonomous robots using a continuously rotating 2D laser scanner. We have developed our(More)
—Mapping and real-time localization are prerequisites for autonomous robot navigation. They also facilitate situation awareness of remote operators in exploration or rescue missions. In this paper, we propose methods for efficient 3D mapping of environments and for tracking in real-time the 6D movement of autonomous robots using a continuously rotating 3D(More)
Individuals between the ages of sixty-five and seventy-five were asked a number of questions regarding which of their cognitive abilities they think have changed with age and, further, what factors they think are responsible for such age changes. Questions were asked in two areas of cognitive functioning--memory and problem solving. With respect to memory,(More)
Reliable obstacle avoidance is a key to navigating with UAVs in the close vicinity of static and dynamic obstacles. Wheel-based mobile robots are often equipped with 2D or 3D laser range finders that cover the 2D workspace sufficiently accurate and at a high rate. Micro UAV platforms operate in a 3D environment, but the restricted payload prohibits the use(More)
The ability of kindergarten, first grade, and third grade boys and girls to use a mnemonic strategy in a spatial task was investigated. Children (N = 90) were asked to replicate a model zoo. Use of an organizational strategy based on an object frame f reference was either required of the child, suggested, or not mentioned on the first trial. A second trial(More)
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