文中采用了三次多项式校正技术，该技术不仅可校正光学镜头的几何畸变，对透视和倾斜所产生的畸变都有较好的校正效果。
The paper adopted cubic multinomial rectification technology which not only can correct optical lens's distortion but also has good rectification results for perspective and incline distortion.
文中以透视投影变换为依据，为基于两台经纬仪形成的一种非接触式光学柔性三坐标测量系统提出了一全新的数学模型。
In terms of perspective projection transformation, a novel mathematical model is proposed for a non contacting optical flexible 3d measurement system constructed by the two theodolites.
根据光学传递函数、调制度和空间频率视觉及对物象的感知程度，制作TIFF格式透视灰度图。
According to optical transfer function, degree of modulation and apperceive degree of space frequency vision vs object image, TIFF grayscale scenograph is made.
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