基于改进KDF和ERLS回归滤波的卫星图像恢复方法

Rajni Barman, D. K. Meda
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引用次数: 0

摘要

由于受站点影响或环境情况的影响,卫星发送的图像有很大的时间依赖性。这些影响表现出不同的扰动形式,如可变加性高斯白噪声、高盐胡椒噪声和有时的混合噪声。另一方面,由于图像物质逐渐减弱或增强,在接收站恢复的图像具有极高的噪声。理想图像重构重排像素筛选策略依赖于已知接收图像中异常框架高噪声设计的属性。本文将复杂计算的扩展递归最小二乘(ERLS)与卡尔曼微分同态滤波(KDF)相结合,用于从异常混乱的可用退化图像中重构图像。通过对现有远程信道实例的分析和评价,设计了基于ERLS复杂计算的系统辨识方法,实现了该方法。此时,通过设计带有ERLS计算的信号增强来消除这些评估过的高噪声图像。重新建立的图像用于进一步的去噪和改进策略。在MATLAB环境下对图像进行了重构,并进行了进一步的处理计算。通过人类视觉系统的方法,定量测量MSE, RMSE和SNR & PSNR &通过图形测量来评估呈现。试验结果表明,RLS通用计算有效地消除了扭曲图像中的高噪声,并在执行过程中传达了一个正确的评估。
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Modified KDF & ERLS Regressing Filter Based Satellite Image Restoration Method
Image taken by Satellite sending are much for time dependent because for station impacts or environmental situations. These impacts present different commotion examples, for example, variable Additive White Gaussian Noise, high Salt Pepper Noise and sometime Mixed Noise. On the other hand, recovered pictures at receiving station are exceedingly highly noisy debased on grounds that picture substance are progressively weakened or intensified. Reconstruction for ideal picture rearrangement pixel sifting strategy depends to known about attributes for abnormal framework highly noisy design in a received image. In this paper work a Extended Recursive Least Square (ERLS) with complex calculation & Kalman diffeomorphism filter (KDF) is merging for picture re-fabrication from exceptionally commotion available debased pictures. Implementation for proposed method is being done by analysing and evaluation existing examples for remote channel through designing System Identification with ERLS complex calculation. At that point, these evaluated highly noisy images are dispensed with by designing Signal Enhancement with ERLS calculation. Re-established pictures are worked for further de-noising & improvement strategies. Picture is re-fabricated & further handling calculations are recreated in MATLAB condition. Presentation is assessed by methods for Human Visual System, quantitative measures as far as MSE, RMSE, and SNR & PSNR &by graphical measures. Trial results exhibit that RLS versatile calculation productively wiped out high noise from twisted pictures & conveyed an upright assessment without plenteous debasement in execution.
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