| 一种基于Canny的改进车灯光轴检测算法 |
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| 引用本文： | 李丹梅,戴曙光.一种基于Canny的改进车灯光轴检测算法[J].计算机与数字工程,2009,37(6):132-135. |
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| 作者姓名： | 李丹梅 戴曙光 |
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| 作者单位： | 上海理工大学光电信息与计算机工程学院,上海,200093 |
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| 摘 要： | 在车灯配光性能检测中，近光光照方向和光形是重要的检测项目。本文研究边缘检测技术在提取前照灯近光光轴中的应用，主要对Canny边缘检测算法的性能进行了分析和评价，针对传统Canny算法在梯度幅值计算上的缺陷，提出了一种通过计算像素八邻域内图像一阶偏导数有限差分来确定梯度幅值的方法．在此基础上，在基于非极值抑制原理检测边缘点时，将像素的八邻域分为4个像限结合双线性插值的方法进一步提高了边缘检测的精度和准确度．根据前照灯配光在线检测的特点及要求，最终选用改进后的Canny边缘检测算法，有效地检测出近光灯的光轴。
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| 关 键 词： | 图像处理 车灯光轴检测 边缘检测 Canny算子 非极致抑制 |
A Modified Detection Algorithm for Headlight Opitcal Axis Based on Canny |
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| Li Danmei,Dai Shuguang.A Modified Detection Algorithm for Headlight Opitcal Axis Based on Canny[J].Computer and Digital Engineering,2009,37(6):132-135. |
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| Authors: | Li Danmei Dai Shuguang |
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| Affiliation: | College of Optoelectronic Science and Computer Engineering;USST;Shanghai 200093 |
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| Abstract: | In the detection of photometric characteristics of headlight,the low beam direction and the light shape are the important examination projects.This article researched on the technology and application of image edge detection in extracting the low beam optical axis of headlamp,Mainly has carried on the analysis and the appraisal to the Canny edge detection algorithms's performance.andintroduced a modified canny algorithm,then compared the detection algorithm with the traditional one.According to the photomet... |
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| Keywords: | image processing headlight optical axis detection edge detection Canny operator non-acme suppresses |
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