| 高精度直线检测算法研究与误差分析 |
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| 引用本文： | 袁继栋,阳波,郑煜,段吉安.高精度直线检测算法研究与误差分析[J].现代制造工程,2011(2). |
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| 作者姓名： | 袁继栋 阳波 郑煜 段吉安 |
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| 作者单位： | 1. 中南大学现代复杂装备设计与极端制造教育部重点实验室,长沙,410083
2. 中南大学现代复杂装备设计与极端制造教育部重点实验室,长沙,410083;湖南师范大学图像识别与计算机视觉研究所,长沙,410081 |
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| 基金项目： | 国家自然科学基金重点项目(50735007); 国家863高技术研究发展技术项目(2007AA04Z344) |
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| 摘 要： | 针对图像处理中直线检测精度不足、运算速度慢等问题,对直线检测算法和精度进行研究,提出一种新的高精度直线检测算法。首先,基于任意两点计算直线参数值并以直线拟合的像素数目作为参数点的累加值;其次把累加值大于阈值的参数点保存在数据链表中并根据局部极大值或阈值判断直线;最后对算法的直线检测精度进行分析,建立直线拟合的误差模型。通过对0°到45°斜率角的直线检测进行误差分析发现,当直线段的长度为400像素时,斜率角的典型误差小于0.03°,当直线段的长度为600像素时,斜率角的典型误差小于0.01°。新算法与Hough、最小二乘算法比较,不但精度高,运算速度快,而且受噪声影响小。
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| 关 键 词： | 直线检测 误差分析 视觉测量 最小二乘 |
Research on high-precision line detection method and error analysis |
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| YUAN Ji-dong,YANG Bo,ZHENG Yu,DUAN Ji-an.Research on high-precision line detection method and error analysis[J].Modern Manufacturing Engineering,2011(2). |
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| Authors: | YUAN Ji-dong YANG Bo ZHENG Yu DUAN Ji-an |
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| Affiliation: | YUAN Ji-dong1,YANG Bo1,2,ZHENG Yu1,DUAN Ji-an1(1 Key Laboratory of Modern Complex Equipment Design and Extreme Manufacturing,Ministry of Education,Central South University,Changsha 410083,China,2 Institute of Image Recognition and Computer Vision,Hunan Normal University,Changsha 410081,China) |
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| Abstract: | In view of the fact that line inspection in image process is not accuracy enough and runs slowly,a new high-precision line detection algorithm is proposed on the research of the normal line detection algorithms and their accuracy theory.First of all,the line parameter value is calculated based on any two points of a image and the number of the pixels in the line which is decided by one parameter is accumulated as a accumulated parameter;the second,a data list is established that stores those parameters grea... |
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| Keywords: | line detection error analysis vision measurement least square |
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