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Sub-pixel Registration Assessment of Multispectral Imagery

机译:多光谱图像的亚像素配准评估

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For multispectral imagery (MSI), spatial registration between bands is a very important part of the overall quality of the MSI product. For some remote sensing imagery, mis-registration of bands greater than about one-quarter of a pixel can be visually noticeable. Based on the successful registration processing developed for the Multispectral Thermal Imager (MTI) (known as edgereg), a derivative algorithm was developed for assessment of spatial registration accuracy of 4-band MSI. This algorithm has sub-pixel accuracy of a few hundredths of a pixel, and can be used to compute an image average mis-registration or process imagery in a block mode to create a mis-registration map. This paper presents the results of testing the algorithm on simulated and commercial imagery.
机译:对于多光谱图像(MSI),波段之间的空间配准是MSI产品总体质量中非常重要的一部分。对于某些遥感影像,在视觉上可以看到大于约四分之一像素的波段配准错误。基于为多光谱热像仪(MTI)(称为edgereg)开发的成功配准处理,开发了一种派生算法,用于评估4波段MSI的空间配准精度。此算法的子像素精度为百分之几像素,可用于计算图像平均配准错误或以块模式处理图像以创建配准图。本文介绍了在模拟和商业图像上测试该算法的结果。

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