| 镜头畸变及其校正技术 |
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| 引用本文： | 朱铮涛,黎绍发. 镜头畸变及其校正技术[J]. 光学技术, 2005, 31(1): 136-138 |
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| 作者姓名： | 朱铮涛 黎绍发 |
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| 作者单位： | 华南理工大学,计算机科学与工程学院,广州,510640;广东工业大学,信息工程学院;华南理工大学,计算机科学与工程学院,广州,510640 |
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| 摘 要： | 根据镜头畸变的数学模型,利用平面圆形网格模板的网格交点来求取镜头的径向、切向和薄棱镜畸变系数。利用网格交点及其附近的像素点信息,来拟合解析曲面并将所求曲面顶点坐标作为网格交点坐标,使像素位置坐标达到亚像素精度,事先求出镜头畸变系数,并在实际测量中对成像点加以校正的方法,可在不影响处理速度的前提下,提高了求解精度。
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| 关 键 词： | 镜头畸变 校正技术 亚像素 |
| 文章编号： | 1002-1582(2005)01-0136-03 |
| 修稿时间： | 2004-04-19 |
Lens distortion and proofreading technology |
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| ZHU Zheng-tao,LI Shao-fa. Lens distortion and proofreading technology[J]. Optical Technique, 2005, 31(1): 136-138 |
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| Authors: | ZHU Zheng-tao LI Shao-fa |
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| Affiliation: | ZHU Zheng-tao~ |
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| Abstract: | Based the math model of lens distortion, the plane roundness gridding model is used to calculate the lens distortion coefficients of radial distortion and other non-linear factor. The method of using the gridding intersection and the around pixel information to calculate the gridding intersection coordinates, then fits the parse bending plane and solves the peak of bending plane, may improve the pixel position to sub-pixel precision. The method of getting the distortion coefficients before measuring, then proofreading the pixel by these coefficients in the practice, can improve precision without affect the speed of treatment. |
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| Keywords: | lens distortion proofreading technology sub-pixel |
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