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Edge-based approach to estimate the drift of a helicopter during flight

Gatter, Alexander (2017) Edge-based approach to estimate the drift of a helicopter during flight. CEAS Aeronautical Journal, 8 (4), pp. 705-718. Springer. DOI: 10.1007/s13272-017-0270-3 ISSN 1869-5582

Full text not available from this repository.

Official URL: http://link.springer.com/article/10.1007/s13272-017-0270-3

Abstract

The Institute of Flight Systems at the German Aerospace Center (DLR) site in Braunschweig Germany has set its goal into making helicopter flying as safe as possible. The new DLR research project "Rettungshubschrauber 2030" addresses the topic of aiding helicopter rescue missions. Research will be conducted to increase the safety of these missions as well as to enable the conduct of missions in circumstances where nowadays a helicopter would not be allowed to operate. One aspect of this research is to increase or maintain the situational awareness of the pilot by processing data from camera images. The paper will focus on the field of visual odometry. It examines, if an edge-based approach for extracting features is a possible alternative or addition to established feature extractors. In the paper, two algorithms for edge extraction will be compared: an algorithm that is based on Hough transform and an algorithm that is based on the Douglas-Peucker method. They are tuned for working with images of rather low resolution and are tested on their ability to detect a sufficient amount of features in camera images as well as on their computational complexity. Then, their ability to detect the drift of a helicopter is assessed using recorded data from flight tests with the advanced control technology/flying helicopter simulator (ACT/FHS) of the DLR. Their performance will be tested on the basis of reference data from the ACT/FHS which have been recorded by the use of a highly accurate INS/DGPS system. The evaluation of the algorithms yields the result that both achieve the proposed accuracy regarding the velocity estimation with the Hough-based method achieving better accuracy while taking significantly more computational time.

Item URL in elib:https://elib.dlr.de/116042/
Document Type:Article
Title:Edge-based approach to estimate the drift of a helicopter during flight
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gatter, AlexanderFT-HUBhttps://orcid.org/0000-0002-6228-7890
Date:December 2017
Journal or Publication Title:CEAS Aeronautical Journal
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:8
DOI :10.1007/s13272-017-0270-3
Page Range:pp. 705-718
Publisher:Springer
Series Name:CEAS Aeronautical Journal
ISSN:1869-5582
Status:Published
Keywords:Computer vision; Visual odometry; Drift estimation; Helicopter landing
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Smart Rotorcraft
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Deposited By: Gatter, Alexander
Deposited On:20 Dec 2017 11:32
Last Modified:06 Sep 2019 15:24

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