Title
A Visual Feature based Obstacle Avoidance Method for Autonomous Navigation
Abstract
We propose a simple but effective obstacle- avoiding approach for autonomous robot navigation. The method computes local but safe navigation path and relies only on visual feature information extracted from the environment. To achieve this, we first build a discrete set of candidate navigation points in camera's field of view; then the obstacle avoiding navigation points are selected by evaluating rewards of all candidate points, where the reward metric consists of point-wise transiting probability, safety consideration, mutual information of features, and feature density. Next, we construct a navigable passage in the free space by generating a series of convex hulls that are adjacent to each other. With the navigable passage constructed, a local path that lies within the passage is planned for the robot to safely navigate through. We evaluate the method in both a real world indoor environment as well as a simulated outdoor environment.
Year
DOI
Venue
2019
10.1109/AIPR47015.2019.9174584
2019 IEEE Applied Imagery Pattern Recognition Workshop (AIPR)
Keywords
DocType
ISSN
obstacle avoidance,autonomous navigation,autonomous robot navigation,navigation path,visual feature information,discrete set,navigation points,camera,reward metric,point-wise transiting probability,feature density,camera field of view,convex hulls
Conference
1550-5219
ISBN
Citations 
PageRank 
978-1-7281-4733-8
0
0.34
References 
Authors
9
3
Name
Order
Citations
PageRank
Zheng Chen100.34
Malintha Fernando201.01
Lantao Liu315716.49