It is the basis of realization ship recognition to accurately extract geometric parameters of the ship target in synthetic aperture radar (SAR) images. Due to the unique SAR imaging mechanism, speckle noise, azimuth ambiguity and side lobe effect seriously impact on geometric parameter estimation of the ship target. Therefore, a method is presented to extract geometric parameters of the ship based on ellipse fitting and the gradient vector flow (GVF) snake with shape priors.
['Xiaoqiang Zhang', 'Boli Xiong', 'Gangyao Kuang', 'Wei Xu']
A geometric parameter extraction method of ship target based on an improved snake model