In this paper, we propose an approach that enables automatic, fast and accurate tree trunks segmentation from three-dimensional (3-D) laser data. Results have been demonstrated in real-time on-board a ground mobile robot. In addition, we propose an approach to estimate tree diameter at breast height (dbh) that was tested off-line on a variety of ground laser scanner data. Results are also prese...

In this study, exploration of unknown environments using LMS 200 Laser scanners with a team of multiple mobile robots is investigated. The aim is to investigate the ability of the cheap LMS 200 laser scanners to scan the environment and build its map. Furthermore, this study proposes two exploration algorithms to reduce the time required to explore a given environment using this type of laser s...

The objective of this paper is to implement a reverse engineering process to inspect the geometry of a flow meter rotor and make recommendations to improve the performance of the rotor. The process includes utilizing a laser scanner arm and Geomagic software to generate a three-dimensional (3D) computer model of the flow meter rotor and compare it with the original Computer Aided Drafting (CAD)...

The orientation of laser scanner point clouds is one of the fundamental steps in the process of creating three-dimensional digital representations of existing objects. Orientation is the task of finding the correct positions of two or more point clouds (that only partially represent the object) obtained from different viewing positions, such that the full object in consideration is correctly de...

This paper presents the most up-to date experimental results obtained during the integration of a 3-D Laser Scanner Tracking System and the current Space Vision System used by NASA. Half scale models of modules of the Space Station Freedom have been built for this demonstration and comparison between the current method using video cameras and the Laser Scanner System are presented. The variable...

The importance of shape reconstruction is increasing in many areas such as RPD (Rapid Product Development) and reverse engineering. Typical data in these areas are mainly classified as the shape data measured by a laser scanner and the data extracted from the CT image. The goal of this research is to realize three-dimensional shape construction by showing a possible way to analyze input image d...

We give a method for improving the resolution of surfaces captured with a laser range scanner by combining many very similar scans. This idea is an application of the 2D image processing technique known as superresolution. The input lower-resolution scans are each randomly shifted, so that each one contributes slightly different information to the final model. Noise is reduced by averaging the ...

A new hand-held laser range scanner is introduced that can capture multi-view range images of an object and integrate the images without registering them. The scanner uses a reference double-frame that acts as the coordinate system of the object. Range images captured from different views of the object are in the coordinate system of the double-frame and, thus, automatically come together. A si...