| 从透视投影图象到立体结构的逆变换 |
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| 引用本文： | 柳海垠,姜忱. 从透视投影图象到立体结构的逆变换[J]. 电机与控制学报, 1990, 0(2) |
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| 作者姓名： | 柳海垠 姜忱 |
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| 作者单位： | 哈尔滨电工学院机械工程系(柳海垠)，哈尔滨电工学院机械工程系(姜忱) |
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| 摘 要： | 本文基于“射线比”的概念,提出了一种从物体的一幅透视投影图象(如照片)到其立体结构的逆变换原理及方法,并给出了简单而有效的公式,以及点的逆变换算法.本文还给出了当透视投影图象的主灭点为未知时,根据长方体的透视投影,计算其主灭点的坐标及透视变换参数r的计算公式.
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| 关 键 词： | 三维重建 图象识别 计算机辅助设计(CAD) |
Inverse Transformation from a Perspective Projection Image to Three Dimensional Shape |
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| Liu Haiyin,Jiang Chen. Inverse Transformation from a Perspective Projection Image to Three Dimensional Shape[J]. Electric Machines and Control, 1990, 0(2) |
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| Authors: | Liu Haiyin Jiang Chen |
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| Affiliation: | Liu Haiyin,Jiang Chen Department of Mechanical Engineering,HIET |
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| Abstract: | A principle and a method of the transformation from only one perspective projection image of an object to its three dimensional shape are presented in terms of "ray rate" in this paper. Some simple and effective equations for the inverse transformation and some algorithms which are used to transform the points inversely are provided. A set of equations which are used to evaluate the coordinates of main vanishing point and the parameter r of transformation according to a projection of regular hexahedron when main vanishing point is unknown are also provided. |
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| Keywords: | three dimensional rebuild image distinguishing computer aided design |
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