Josef Pauli

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Previous research has indicated that the developing brain is vulnerable to the effects of alcohol exposure. Most of this research has used an experimental design in which animals where chronically subjected to alcohol for a lengthy period of time during gestation and/or the preweaning period. Recent evidence has indicated that the morphology of the brain(More)
We apply techniques of computer vision and neural network learning to get a versatile robot manipulator. All work conducted follows the principle of autonomous learning from visual demonstration. The user must demonstrate the relevant objects, situations, and/or actions, and the robot vision system must learn from those. For approaching and grasping(More)
Alcohol taken regularly over a lengthy period of time has been claimed to cause the loss of neurons in both the adult and developing brain. However, it remains uncertain whether acute, as opposed to chronic, exposure to alcohol at specified periods can also cause disruption in the neuronal population of the developing brain. This question was investigated(More)
The work presents a methodology contributing to boundary extraction in images of approximate polyhedral objects. We make extensive use of basic principles underlying the process of image formation and thus reduce the role of object-specific knowledge. Simple configurations of line segments are extracted subject to geometric-photometric compatibilities. The(More)
As opposed to the usual approach of programming robot arms by giving a complete description of the trajectory (e.g. direct programming) this work is based on the idea of Programming by Demonstration (PbD). Only few intermediate positions, which approximate the trajectory, are given and recorded by a stereo-camera-system. The idea is to extract the path of(More)
Robust time-to-contact calculation belongs to the most desirable techniques in the field of autonomous robot navigation. Using only image measurements it provides a method to determine when contact with a visible object will be made. However the computation of the time-to-contact values is very sensitive to noisy measurements of feature positions in a(More)