Fisheye-Lens-Based Visual Sun Compass for Perception of Spatial Orientation
Joint Authors
Duan, Fu-qing
Lv, Ke
Wang, Liang
Source
Mathematical Problems in Engineering
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-07
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
In complex aeronautical and space engineering systems, conventional sensors used for environment perception fail to determine the orientation because of the influences of the special environments, wherein geomagnetic fields are exceptional and the Global Positioning System is unavailable.
This paper presents a fisheye-lens-based visual sun compass that is efficient in determining orientation in such applications.
The mathematical model is described, and the absolute orientation is identified by image processing techniques.
For robust detection of the sun in the image of the visual sun compass, a modified maximally stable extremal region algorithm and a method named constrained least squares with pruning are proposed.
In comparison with conventional sensors, the proposed visual sun compass can provide absolute orientation with a tiny size and light weight in especial environments.
Experiments are carried out with a prototype validating the efficiency of the proposed visual sun compass.
American Psychological Association (APA)
Wang, Liang& Duan, Fu-qing& Lv, Ke. 2012. Fisheye-Lens-Based Visual Sun Compass for Perception of Spatial Orientation. Mathematical Problems in Engineering،Vol. 2012, no. 2012, pp.1-15.
https://search.emarefa.net/detail/BIM-1001611
Modern Language Association (MLA)
Wang, Liang…[et al.]. Fisheye-Lens-Based Visual Sun Compass for Perception of Spatial Orientation. Mathematical Problems in Engineering No. 2012 (2012), pp.1-15.
https://search.emarefa.net/detail/BIM-1001611
American Medical Association (AMA)
Wang, Liang& Duan, Fu-qing& Lv, Ke. Fisheye-Lens-Based Visual Sun Compass for Perception of Spatial Orientation. Mathematical Problems in Engineering. 2012. Vol. 2012, no. 2012, pp.1-15.
https://search.emarefa.net/detail/BIM-1001611
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1001611