卫星遥感影像预处理中噪声去除方法的研究

主要介绍了在遥感卫星影像预处理过程中遇到的噪声问题及其解决方法,内容有常见的遥感噪声现象包括整像素偏移、字节错位、影像错行、带状噪声、条纹噪声等,在描述噪声现象的同时给出了针对上述噪声的相应处理方法如空域滤波方法以及频域滤波方法等。实践证明所述方法在遥感卫星影像预处理过程中得到了很好地应用。

Research on Noise Remove Method of Preprocess Satellite Remote Sensing Image

Noise removing is an important part on preprocessing of satellite remote sensing image.Noise can be classified by representation as periodical noise and random noise,and also be classified by the reason of noise as periodical offset and apparatus electromagnetism.Noise depressed the image quality,sometimes even make true information invisible.Different noise phenomena often have different removing method.The noise remove method includes space field filtering method and frequency field filtering method are introduced at the same time.This paper introduce the noise phenomena and their removing method including pixel offset,bits offset,image line error,scan-Line noise from Landsat TM are described.We program methods above using VC considering the character of satellite,and the methods are proved to be correct by practice.