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The research on developing assistive devices for visually impaired people greatly relies on image processing techniques. Extensive effort is made on detecting the obstacles in front of the user. Beside the normal obstacles that the user can bump into, another category of obstacles, negative obstacles must also be detected. Negative obstacles are usually represented by holes in the ground or regions...
The inspection robot is an autonomous robotic system for inspecting substation equipment to help or replace workers. In order to do the navigation and obstacle negotiating autonomously instead remote control, a stereo vision based 3D mapping system for the measurement of the environment is development. An original mapping and location system by lacer has applied on the robot for the location the robot's...
The use of Cloud Computing for computation offloading in the robotics area has become a field of interest today. The aim of this work is to demonstrate the viability of cloud offloading in a low level and intensive computing task: a vision-based navigation assistance of a service mobile robot. In order to do so, a prototype, running over a ROS-based mobile robot (Erratic by Videre Design LLC) is presented...
Vision-based robotics perception still have a great focus of attention on building systems because of its common availability and low cost. The 3D data produced by the disparity calculation methods in stereo cameras are inaccurate and presents substantial noise. We present here our method to deal with the noisy 3D point cloud produced by stereo camera to build a navigation map and mark obstacles with...
In an unstructured environment, there are many challenges for obstacle detection. This paper presents an improved method to detect obstacles based on stereo vision in unstructured environments based on salient obstacle extraction. This method can achieve same or higher level of accuracy of obstacle detection compared to the existing salient obstacle detection with significant reduction of computation...
The objective of this research is to develop a real time obstacle detection and obstacle avoidance for autonomous navigation of mobile robots using a stereo camera in an unstructured environment. Autonomous navigation of mobile robots demands a) Exact determination of position and orientation of Robot and b) Accurate determination of size, shape, depth and range of potential obstacles in the environment...
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