本文利用中心透视原理和图像处理的方法可以解决车道识别，车辆识别和车间距测量的关键难点，达到高速公路汽车追尾预警的目的。
This paper can solve the key difficulty of lane detection, car detection and distance measurement based on central perspective principle and image process in order to alarm rear-end collision.
介绍了一种应用于钢管焊接接头检验的射线透视系统的设计原理与实现方法。
The design principle and realization method of a new kind of radiographic welding seam inspection system for steel tube were introduced.
简要分析了C型臂机透视工作原理，介绍了曝光正常但无图像显示故障的分析和排除过程。
This paper briefly analyzes the working principle of fluoroscopy of C-arm, describes its analysis and troubleshooting process of no image display.
利用求补色立体图屏幕坐标原理，采用浮动水平线法来绘出空间曲面的透视投影图形。
Based on the screen coordinate theory of solid diagram of complementary color, a perspective projection diagram of space surface is drawn using floating horizontal line method.
然后运用相关的几何与透视理论，对基于计算机视觉的车轮定位参数的测量原理进行分析探讨。
Then it USES relevant geometric theories and perspective theories to analyze the measuring principles of wheel positioning parameters which are based on computer vision.
首先介绍透视变换和透视纹理映射原理，并简要分析其在自由曲面纹理映射中的应用。
First, the principle of perspective transformation and its application in the texture mapping of free-form surface are presented.
文中对复合画面全景透视的原理、复合画面的组合原则、复合画面全景透视的具体面法和复合画面中透视阴影的绘制都作了深入的探讨。
This paper describes its principles and component rules and concrete methods of construction and how to draw the shade and shadow of the perspective in detail.
本文通过对光影的科学及视觉“暗箱”原理的考察，阐明光影科学与视觉原理对西方绘画的影响；通过透视法、明暗法这一线索考察西方绘画中的光影理论，明确光影是绘画的首要问题。
The thesis researches on the science of lights & shadows and the theory of "camera obscura" . It clarifies the influence from the science of lights & shadows to the western painting.
本文通过对光影的科学及视觉“暗箱”原理的考察，阐明光影科学与视觉原理对西方绘画的影响；通过透视法、明暗法这一线索考察西方绘画中的光影理论，明确光影是绘画的首要问题。
The thesis researches on the science of lights & shadows and the theory of "camera obscura" . It clarifies the influence from the science of lights & shadows to the western painting.
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