In order to realize fast, high quality enlargement of image, this paper introduces a new approach to achieve the high order interpolation and realize the enlargement of images by means of hardware.

为了能高速、高质量地进行图像放大，提出了一种以硬件方法完成高阶图像插值运算来实现图像放大的新方法。

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The interpolation algorithm in some way describe the relationship between the data points, carrying out high-order interpolation would appear inconsistent with the original function of the phenomenon;

插值算法以某种方法描述数据点之间的关系，在进行高次插值时会出现与原函数不一致的现象；

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Therefore the authors put forward a calibration algorithm based on the grid image, which USES subdivision interpolation to approach the deformation and get a result of high-order interpolation.

为此，论文提出了一种基于网格图像的几何校正算法，该算法运用分段插值的思想，利用分块低次插值去逼近几何畸变，达到高次插值的效果。

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