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首页> 外文期刊>ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences >INFLUENCE OF IMAGE INTERPOLATION ON IMAGERY-BASED DETECTION AND COMPENSATION OF SATELLITE JITTER
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INFLUENCE OF IMAGE INTERPOLATION ON IMAGERY-BASED DETECTION AND COMPENSATION OF SATELLITE JITTER

机译:图像插值对基于图像的卫星抖动探测和补偿的影响

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Satellite jitter is a common and complicated phenomenon that degrades the geometric quality of high-resolution satellite images. Imagery-based detection and compensation of satellite jitter have recently been widely concerned. However, most of the existing studies overlook the issue of image interpolation in this topic involving subpixel measurements. In this study, the influence of image interpolation on imagery-based detection and compensation of satellite jitter is investigated. Four different interpolators are separately applied in dense least squares matching for jitter detection based on parallax observation and in intensity resampling for jitter distortion compensation. Experiments were carried out using ZiYuan-3 dataset to compare and analyze the results in the case of different image interpolation. The experimental results demonstrate the influence of image interpolation on imagery-based jitter processing. Inferior interpolators can induce pixel locking effect in subpixel matching and position-dependent systematic bias after image correction, which deteriorate the performance of jitter detection and compensation. To ensure the reliability, sophisticated interpolation algorithms with smaller phase errors are preferable in imagery-based jitter detection and compensation.
机译:卫星抖动是一种常见而复杂的现象,可降低高分辨率卫星图像的几何质量。最近涉及基于图像的卫星抖动的检测和补偿。然而,大多数现有研究都忽视了涉及子像素测量的主题中的图像插值问题。在该研究中,研究了图像插值对基于图像的检测和卫星抖动补偿的影响。基于视差观察和抖动失真补偿的强度重采样,四种不同的内插器分别应用于抖动检测的密集最小二乘匹配。使用Ziyuan-3数据集进行实验,以比较和分析不同图像插值的结果。实验结果展示了图像插值对基于图像的抖动处理的影响。较差的内插器可以在图像校正后的子像素匹配和位置相关系统偏压中诱导像素锁定效果,这使得抖动检测和补偿的性能劣化。为了确保可靠性,在基于图像的抖动检测和补偿中,优选具有较小相位误差的复杂内插算法。

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