The shape measuring of a diffuse abject is conducted based on 2-D digital image processing phase modulated fringe pattern acquired by the projection of Ronchi rulings.

对投影光栅方法获得的位相调制空间载波图进行二维数字图象处理，实现了散射物体的三维曲面测量。

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The display period of periodic pseudo-pattern in a virtual 2-D plane is dependent on the pulse number in a modulation period and the display plane width, which is proved in this paper in detail.

分析了周期性对称调制伪模式的显示周期与平面宽度和调制周期内的调制脉冲数之间的关系。

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The accompanying set of 52 CARDS shows how the blocks can be used to create 2-d or 3-d patterns (children look at a card and try to recreate the pattern).

伴随的52张演示了块可用于创建二维或三维模式(孩子们看一张卡片，试图重现模式)。

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