吉林大学学报(工学版) ›› 2013, Vol. 43 ›› Issue (增刊1): 345-351.
郭芬红1, 熊昌镇1, 熊刚强2
GUO Fen-hong1, XIONG Chang-zhen1, XIONG Gang-qiang2
摘要：
构造了一种具有菱形支撑的2维全相位双正交U变换内插模板。利用正交U变换的列率递增特性,依据具有线性相位特性的全相位数字滤波理论,推导了全相位U变换列率滤波器的构造方法,在此基础上利用二维菱形半带低通滤波器设计理论构造了图像内插模板。利用构造的内插模板,提出了一种图像内插方法。实验结果表明,与双三次样条内插和其它全相位内插方法相比,全相位U逆变换图像放大方法的结果是最优的。
中图分类号:
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