Universal reconstruction method for radiometric quality improvement of remote sensing images

作者:Shen, Huanfeng; Liu, Yaolin; Ai, Tinghua*; Wang, Yi; Wu, Bo
来源:International Journal of Applied Earth Observation and Geoinformation, 2010, 12(4): 278-286.
DOI:10.1016/j.jag.2010.04.002

摘要

The performance of remote sensing images in some applications is often affected by the existence of noise, blurring, stripes and corrupted pixels, as well as the hardware limits of the sensor with respect to spatial resolution. This paper presents a universal reconstruction method that can be used to improve the image quality by performing image denoising, deconvolution, destriping, inpainting, interpolation and super-resolution reconstruction. The proposed method consists of two parts: a universal image observation model and a universal image reconstruction model. In the observation model, most degradation processes in remote sensing imaging are considered in order to relate the desired image to the observed images. For the reconstruction model, we use the maximum a posteriori (MAP) framework to set up the minimization energy equation. The likelihood probability density PDF) is constructed based on the image observation model, and a robust Huber-Markov model is employed as the prior PDF. Experimental results are presented to illustrate the effectiveness of the proposed method.