基于小波双三次插值提高光学遥感图像空间分辨率的研究

Improvement of the Space Resolution of the Optical Remote Sensing Image By the Wavelet Bi-cubic Interpolation

为了尽可能的保持光学遥感图像的原始信息 ,提高图像的空间分辨率 ,有利于对图像的细节信息进行观察分析 ,本文提出了小波双三次插值方法 ,并将其应用于提高光学遥感图像空间分辨率 .实验结果表明 ,该算法得到了比全小波插值和小波双线性插值更高的峰值信噪比和更好的图像细节效果 ,是一种适合提高光学遥感图像分辨率的有效算法 .

In order to preserve the original information of the optical remote sensing image, to improve its space resolution possibly high, and to favorably observe and analyze its detail information, the wavelet bi cubic interpolation was proposed in this paper. The experiment result proved that the image processed by the wavelet bi cubic interpolation had a relative higher peak signal noise ratio and better image detail information than the images processed by the wavelet scale function Interpolation and the wavelet bi linear interpolation. It is proved that the wavelet bi cubic interpolation is an effect algorithm to improve the space resolution of the optical remote sensing image.