Optical Image Generation and High-precision Line-of-Sight Extraction for Mars Approach Navigation
AffiliationCollege of Engineering, The University of Arizona, Tucson, AZ 85721, USA
KeywordsAutonomous optical navigation
Simulated image generation
Sub-pixel edge detection
Robust ellipse fitting
MetadataShow full item record
PublisherCambridge University Press
CitationJiang, X., Li, S., Gu, L., Sun, J., & Xiao, D. (2018). Optical Image Generation and High-precision Line-of-Sight Extraction for Mars Approach Navigation. The Journal of Navigation, 1-24.
JournalJournal of Navigation
Rights© The Royal Institute of Navigation 2018
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at firstname.lastname@example.org.
AbstractHigh-precision line-of-sight extraction technique is essential for autonomous optical navigation during the Mars approach phase. To support future Mars exploration missions, an optical image simulation system is a necessary ground verification facility for Mars image generation and line-of-sight extraction algorithm tests. In this paper, an optical image generation procedure is first developed according to projection relationships, reference flight profiles and camera parameters. Next, a hybrid image processing and line-of-sight extraction algorithm is proposed through objective segmentation and rough edge detection, pseudo-edge elimination and precise edge detection, and robust ellipse fitting. Finally, an optical image simulation system is established, and the experimental results show that the proposed procedure can effectively simulate the optical image in the field-of-view of a Mars spacecraft, and the hybrid extraction algorithm can obtain high-precision Mars centroid information.
Note6 month embargo; published online 03 July 2018
VersionFinal accepted manuscript