线性透视-当平行线倾斜时，它们看似相交。
Linear Perspective - As parallel lines recede, they appear to come together.
你也许注意到了我纠正了垂直透视，因此建筑不会再向建筑中心倾斜。
You may also notice that I corrected the verticals so that the buildings no longer lean into the center of the image.
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.
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