We solve direct and inverse obstacle-scattering problems in a half-space composed of a uniform absorbing and scattering medium. Scattering is sharply forward-peaked, so we use the modified Fokker-Planck approximation to the radiative transport equation. The obstacle is an absorbing inhomogeneity that is thin with respect to depth. Using the first Born approximation, we derive a method to recove...

Sensor and motor systems are not separable for autonomous agents to accomplish tasks in a dynamic environment. This paper proposes a method to represent the interaction between a vision-based learning agent and its environment. The method is called \motion sketch" by which a one-eyed mobile robot can learn several behaviors such as obstacle avoidance and target pursuit. A motion sketch is a col...

In the paper, an algorithm for the obstacle avoidance and a procedure for the role reassignment of robot formation control based on this algorithm are proposed. This algorithm contains an edge detector that is used to determine the position of the vertical edges of the obstacle in the environment. Meanwhile, a motion controller is also designed in this research based on the dynamic equation for...

Obstacle detection is often the rst perceptual system we add to our mobile robots. After all, once the robot is moving around, constantly bumping into things doesn't make a very impressive demonstration of the robot's intellect . A simple solution is a contact sensor in the form of a bump switch or whisker, but this approach to obstacle detection is not very impressive and reminiscent of a blin...

Fumiya Iida Artificial Intelligence Laboratory Department of Information Technology University of Zurich Winterthurerstr. 190, CH-8057 Zurich, Switzerland E-mail : [email protected] Abstract The ability to navigate in a complex environment is crucial for both animals and robots. Particularly flying insects are capable of surprisingly good navigation despite the small size and relative simplicit...

As radar sensors are being miniaturized,there is a growing interest for using them in indoor sensing applications such as drone obstacle avoidance. In those novel scenarios,radars must perform well dense scenes with large number of neighboring scatterers. Central to performance the detection algorithm used separate targets from background noise and clutter. Traditionally,most systems use conven...