二维不可分插值滤波器在图像放大中的应用

Application of 2D Nonseparable Interpolating Filter in Image Magnification

给出了一种图像尺寸放大的新方法,该方法利用了线性相位二维不可分离的FIR插值滤波器,与最近邻域法、双线性插值法、双三次样条插值法、三次B-样条插值法、子序列fft内插法等相比,该方法可以获得更好的放大结果,实验结果和理论分析也表明了这点。

In this paper, a new way to image size zooming is proposed. The algorithm to design two dimensional nonseparable linear phase finite-impulse response （FIR） interpolation filter is given. Comparing with the nearest neighbor interpolator, the bilinear interpolator, the bicubic interpolator and the cubic B-spline interpolator methods, this interpolator algorithm is better according to the experimental effects and theoretical analysis.