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Keywords = couple feature points (CFPs)

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22 pages, 7999 KiB  
Article
Side-Scan Sonar Image Mosaic Using Couple Feature Points with Constraint of Track Line Positions
by Jianhu Zhao, Xiaodong Shang and Hongmei Zhang
Remote Sens. 2018, 10(6), 953; https://doi.org/10.3390/rs10060953 - 15 Jun 2018
Cited by 14 | Viewed by 6648
Abstract
To obtain large-scale seabed surface image, this paper proposes a side-scan sonar (SSS) image mosaic method using couple feature points (CFPs) with constraint of track line positions. The SSS geocoded images are firstly used to form a coarsely mosaicked one and the overlapping [...] Read more.
To obtain large-scale seabed surface image, this paper proposes a side-scan sonar (SSS) image mosaic method using couple feature points (CFPs) with constraint of track line positions. The SSS geocoded images are firstly used to form a coarsely mosaicked one and the overlapping areas between adjacent strip images can be determined based on geographic information. Inside the overlapping areas, the feature point (FP) detection and registration operation are adopted for both strips. According to the detected CFPs and track line positions, an adjustment model is established to accommodate complex local distortions as well as ensure the global stability. This proposed method effectively solves the problem of target ghosting or dislocation and no accumulated errors arise in the mosaicking process. Experimental results show that the finally mosaicked image correctly reflects the object distribution, which is meaningful for understanding and interpreting seabed topography. Full article
(This article belongs to the Special Issue Advances in Undersea Remote Sensing)
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