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For accident prevention at intersections, it is useful for drivers to grasp the position of vehicles in blind spots. This can be achieved without infrastructure if some vehicles passing near the intersection capture and share live video of the intersection through inter-vehicle communications. However, such video streaming requires a congestion control mechanism. In this paper, aiming to let a driver...
We developed a rescue robot system, which allows efficient utilization of the potentials of a robot, by effectively switching between tele-operation mode and autonomous mode based on the task and the operation environment. Rescue robots are mobile sytems which can perform search for human lives, on behalf of rescue personnel, in dangerous environments like earthquack disaster zones or areas with chemical...
This paper presents a non-delayed visual tracking method of a hand-eye robot for a moving target object. The hand-eye robot is constructed from a three degrees of freedom planar manipulator and a single charged-coupled device (CCD) camera that is mounted on the end-effector. The control objective is to keep the target object around the center of the image plane. In many conventional image-based visual...
The paper describes a way of measuring the distance toward a target object with using visual information provided by an active camera. The optical flow, which is one of the ways of image analysis in image processing, contributes to recognize the target status and is also available to estimate the distance toward the target. In our approach, at first, the moving direction of the active camera is estimated...
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