Coarse-Fine-Stitched: A Robust Maritime Horizon Line Detection Method for Unmanned Surface Vehicle Applications

Sensors
Yuan Sun, Li Fu

Abstract

The horizon line has numerous applications for an unmanned surface vehicles (USV), such as autonomous navigation, attitude estimation, obstacle detection and target tracking. However, maritime horizon line detection is quite a challenging problem. The pixel points of the horizon line features are far fewer than the pixel points of the entire image, on the one hand. Conversely, the detection results might be impacted negatively by the complex maritime environment, waves, light changing, and partial occlusions due to maritime vessels or islands, for example. To solve these problems, a robust horizon line detection method named coarse-fine-stitched (CFS) is proposed in this paper. First, in the coarse step of CFS, a line segment detection approach using gradient features is applied to build a line candidate pool, which probably contains many false detection results. Then, hybrid feature filtering is designed to pick the horizon line segments from the pool in the fine step. Finally, the fine line segments are stitched to obtain the whole horizon line based on random sample consensus (RANSAC). Using real data in the maritime environment, the experimental results demonstrate the effectiveness of CFS, compared to the existing methods ...Continue Reading

References

Feb 6, 2008·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Agnès DesolneuxJean-Michel Morel
Mar 13, 2010·IEEE Transactions on Pattern Analysis and Machine Intelligence·Rafael Grompone von GioiGregory Randall
Apr 4, 2015·IEEE Transactions on Cybernetics·Matej KristanJanez Pers
Jan 6, 2016·Sensors·Francesco GiordanoRaffaele Santamaria
Dec 3, 2016·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Dilip K PrasadChai Quek

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MSCM
MuSCoWERT
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