A novel normalized scanning algorithm for wake detection in SAR images

Jie Nan; Hong Zhang; Chao Wang; Fan Wu; Bo Chen; Bo Zhang

doi:10.1117/12.979646

11 December 2012 A novel normalized scanning algorithm for wake detection in SAR images

Jie Nan, Hong Zhang, Chao Wang, Fan Wu, Bo Chen, Bo Zhang

Proceedings Volume 8525, Remote Sensing of the Marine Environment II; 852506 (2012) https://doi.org/10.1117/12.979646
Event: SPIE Asia-Pacific Remote Sensing, 2012, Kyoto, Japan

Abstract

This paper presents a novel normalized scanning algorithm for detecting ship wakes in SAR (Synthetic Aperture Radar) images. Unlike most of wake detection algorithm is based on Radon transform, the proposed algorithm is based on normalized scanning. The technique takes advantage of the displacement between the ship and perspective wake in azimuth direction. The proposed algorithm can determine the offset in azimuth direction and the movement direction of ship. Then we can get the velocity vector of the ship. Although the computational complexity is very small, the normalized scan algorithm is robust in high noise environment. Experiment work outs are carried over in real SAR images. Results show that the ship wake detection based on normalized scan is better than traditional technique.

Citation Download Citation

Jie Nan, Hong Zhang, Chao Wang, Fan Wu, Bo Chen, and Bo Zhang "A novel normalized scanning algorithm for wake detection in SAR images", Proc. SPIE 8525, Remote Sensing of the Marine Environment II, 852506 (11 December 2012); https://doi.org/10.1117/12.979646

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KEYWORDS

Synthetic aperture radar

Radon transform

Detection and tracking algorithms

Digital imaging

Speckle

Chaos

Environmental sensing

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