摘要： 为保持原始遥感图像信息，提高图像空间分辨率，使其适合人眼观察，提出Contourlet双三次插值算法。在Contourlet变换的基础上，对遥感图像采用双三次插值进行相似变换，通过反变换得到比原图像分辨率更高的插值图像。实验结果表明，与双三次插值、小波双三次插值相比，该算法具有更高的信噪比和更好的图像细节效果。

关键词: 遥感图像, Contourlet变换, 双三次插值, 相似变换

Abstract: In order to preserve the information of source remote sensing image, improve its spacial resolution and make it appropriate for people to observe, this paper proposes the Contourlet bi-cubic interpolation algorithm. It uses bi-cubic interpolation to do similar transformation, and obtains interpolation image with higher resolution ratio than the original image by inverse transformation. Experimental results show that the algorithm can get higher PSNR and better image detail effect than the bi-cubic interpolation and wavelet bi-cubic interpolation.

Key words: remote sensing image, Contourlet transformation, bi-cubic interpolation, similar transformation

中图分类号: 

• TN911.73