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Remote Sensing Image Registration With Adjustable Threshold and Variational Mixture Transformation

机译:遥感图像配准,具有可调节阈值和变分混合物变换

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摘要

This letter proposes a remote sensing (RS) image registration method based on adjustable threshold and variational mixture transformation (VMT). The main contributions of our method are: 1) an adjustable threshold strategy proposed to guarantee sufficient inlier pairs for image spatial transformation and 2) a VMT, which achieves a coarse-to-fine process, consisting of three main steps as follows: a) a rigid transformation is employed to achieve approximate correspondence; b) a guided Gaussian mixture model is proposed to better distinguish outliers; and c) a nonrigid transformation is applied to achieve an accurate registration. We test the performance of our algorithm in feature matching and RS image registration and compare it with the six state-of-the-art methods. Our method shows the best performances in most scenarios.
机译:这封信提出了一种基于可调阈值和变分混合混合变换(VMT)的遥感(RS)图像登记方法。我们方法的主要贡献是:1)一种可调节的阈值策略,提出了保证图像空间变换的足够的Inlier对和2)VMT,其实现了由以下三个主要步骤组成的粗细的处理,如下:a)采用刚性变换来实现近似对应; b)提出了一种引导的高斯混合模型,以更好地区分异常值; c)应用非脂肪变换来实现准确的注册。我们在特征匹配和RS图像注册中测试算法的性能,并将其与六种最先进的方法进行比较。我们的方法在大多数情况下都显示出最佳性能。

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