Although considerable achievement has been made to the development of methods of extracting 3D geometrical information of objects from a scene, there are still major difficulties to visualize complex objects into descriptive CAD models. This paper introduces a new framework for rapid 3D modeling for complex planar objects which would enable automated material handling and semiautomated equipmen...

This paper presents WOAH, a method for real-time mobile robot path following and obstacle avoidance. WOAH provides reactive speed and turn instructions based on obstacle information sensed by a laser range finder. Unlike many previous techniques, this method allows a robot to move quickly past obstacles that are not directly in its path, avoiding slowdowns in path following encountered by previ...

Autonomous navigation of a mobile robot is a challenging task. Much work has been done in indoor navigation in the last decade. Fewer results have been obtained in outdoor robotics. Since the early 90's, the Global Positioning System (GPS) has been the main navigation system for ships and aircrafts. In open fields, satellite navigation gives absolute position accuracy. The absolute heading info...

This paper describes a 3D scene analysis system that is capable of modelling real-world scenes, based on data acquired by a Laser Range Finder on board of a mobile robot. Laser range images directly provide access to three dimensional information, as opposed to intensity images. This characteristic makes range data suited to build 3D models of objects, and in general real world scenes. Results ...

We describe a pixel-based approach to range processing for obstacle detection and autonomous driving as an alternative to the traditional imageor map-based appmches. The pixel-based approach eliminates the delays due to image acquisition and map building and permits the integration of traversabiliv evaluation and path generation into a single module without rhe latency involved in distributed s...

A methodology for {evaluating range image segmentation algorithms is proposed. This methodology involves 1) a common set of 40 laser range finder images and 40 structured light scanner images that have manually specified ground truth and 2) a set of defined performance metrics for instances of correctly segmented, missed, and noise regions, overand undersegmentation, and accuracy of the recover...

It is important to assess street-parking vehicles causing traffic problems in urban areas, however, it is performed manually and at high cost. It is a top priority for reducing cost, to develop a detection system of those vehicles. We propose a detection method using a laser-range finder and a line-scan camera. In the detection method, two kinds of cluster analysis are applied to range points: ...

In this paper, we propose a mobile robot system which has functions of person following and autonomous returning. The robot realizes these functions by analyzing information obtained with camera and laser range finder. Person following is performed by using HOG features, color information, and pattern of range data. Along with person following, a map of the ambient environment is generated from...

In this paper, we propose a mobile robot system which has functions of person following and autonomous returning. The robot realizes these functions by analyzing information obtained with camera and laser range finder. Person following is performed by using HOG features, color information, and shape of range data. Along with person following, a map of the ambient environment is generated from t...