One such surface is known as the pseudosphere.

一个这样的曲面名为伪球面。

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An image filter called the pseudosphere filter is presented in this paper.

提出了一种图像滤波器——伪球滤波器。

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An image filter called the pseudosphere filter is presented in this paper.

提出了一种图像滤波器——伪球滤波器。

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