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ThinkMind // International Journal On Advances in Systems and Measurements, volume 10, numbers 3 and 4, 2017 // View article sysmea_v10_n34_2017_8


On Line Visibility-Based Trajectory Planning in 3D Dynamic Environments Using Local Point Clouds Data

Authors:
Oren Gal
Yerach Doytsher

Keywords: Visibility; 3D; Urban environment; Spatial analysis.

Abstract:
In this paper we present an efficient and fast visible trajectory planning for unmanned vehicles in a 3D urban environment based on local point clouds data. Our trajectory planning method is based on a two-step visibility analysis in 3D urban environments using predicted visibility from point clouds data. The first step in our unique concept is to extract basic geometric shapes. We focus on three basic geometric shapes from point clouds in urban scenes: planes, cylinders and spheres, extracting these geometric shapes using efficient RANSAC algorithms with a high success rate of detection. The second step is a prediction of these geometric entities in the next time step, formulated as states vectors in a dynamic system using Kalman Filter (KF). Our planner is based on the optimal time horizon concept as a leading feature for our greedy search method for making our local planner safer. We demonstrate our visibility and trajectory planning method in simulations, showing predicted trajectory planning in 3D urban environments based on real LiDAR point clouds data.

Pages: 174 to 183

Copyright: Copyright (c) to authors, 2017. Used with permission.

Publication date: December 31, 2017

Published in: journal

ISSN: 1942-261x

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