摘要： 在Nyugen N 等的图像超分辨率小波内插的算法框架下，用二元树复小波变换代替实离散小波变换，使图像超分辨率小波内插能得到更好的高分辨率图像的拟合部分和更多方向的细节。算法分析和实验结果表明了该方法是对N. Nyugen 等的图像超分辨率小波内插框架的进一步改进。

关键词: 图像超分辨率小波内插；交错采样；二元树复小波变换

Abstract: Under the framework of image super-resolution wavelet interpolation proposed by Nyugen N and et al, by taking advantage of characters such as shift-invariance, better directive selection and effective computation of dual tree complex wavelet, a Q-shift version of dual tree complex wavelet is introduced, so as to obtain a better interpolated approximate image with much less artifacts and more directions of details.Algorithm analysis and results of tests on synthetic image series are also presented to show the improvements to the works of Nyugen N and et al

Key words: Image super-resolution interpolation based on wavelet; Interlaced sampling; Dual tree complex wavelet transformation