在交替迭代过程中，考虑到算法收敛较慢，一种称为向量外推的加速方法被采用。
During the alternate iteration, an acceleration method called as vector extrapolation was applied to the alternate iteration steps owing to slow convergence of the algorithm.
分析了小波双线性插值中高频外推阈值门限与重建图像峰值信噪比的变化关系，提出了峰值信噪比最大小波双线性插值迭代算法。
The variable relationship between the threshold of the extrapolation and its correspondent Peak of the Signal-to-Noise Ratio (PSNR) in the Wavelet Bi-linear Interpolation Algorithm is deeply analyzed.
分析了小波双线性插值中高频外推阈值门限与重建图像峰值信噪比的变化关系，提出了峰值信噪比最大小波双线性插值迭代算法。
The variable relationship between the threshold of the extrapolation and its correspondent Peak of the Signal-to-Noise Ratio (PSNR) in the Wavelet Bi-linear Interpolation Algorithm is deeply analyzed.
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