By analyzing the structure of the decomposed image, the combination method of bi-cubic interpolation and the direction interpolation is proposed.
对分解后的图像结构进行分析，提出双三次插值与方向插值相结合的方法，对分解后图像插值。
One method for estimating unknown data is to interpolate two dimensional terrain data. This paper presents two dimensional cubic convolution interpolation function.
本文提出一种二维离散数据的插值方法——二维三次卷积插值。
The formulation of cubic polynomial interpolation and the remainder of cubic polynomial interpolation were deduced and the engine fuel consumption characteristics map was drawn by this method.
推导了三次多项式插值公式和三次多项式插值余项，绘制了发动机万有特性曲线。
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