| 李俊峰,李明睿.基于多方向Gabor滤波的导光板轻微线刮伤检测方法研究[J].光电子激光,2019,30(4):395~401 |
| 基于多方向Gabor滤波的导光板轻微线刮伤检测方法研究 |
| Research on slight line scratch detection method of light guide plate based on multi-directional gabor filter |
| 投稿时间：2018-08-14 |
| DOI： |
| 中文关键词: 导光板 轻微线刮伤 Gabor滤波器 亚像素分析 |
| 英文关键词:light guide plate slight line scratches gabor filter sub-pixel image analysi s |
| 基金项目:国家自然科学基金(61374022)、浙江省基础公益研究计划项目(LGG18F030001)资助项目 (浙江理工大学 机械与自动控制学院,浙江 杭州 310018) |
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| 中文摘要: |
| 导光板在加工、运输等生产过程,不可避免地会出 现各种缺陷,特别是轻微线刮伤,利用现有算法 无法准确提取缺陷区域。本文在分析导光板轻微线刮伤产生原因、成像特征的基础上,提出 了一种基于多 方向Gabor滤波和亚像素分析的导光板轻微线刮伤检测方法。首先,为了突出缺陷区域,设 计了一个多方 向的Gabor滤波器；进而,利用亚像素图像分析方法,准确将疑似缺陷区域从背景图中分割 出来；最后, 分析区域形状特征,准确提取轻微线刮伤缺陷。实验结果表明,该算法的运行效率和准确率 高,稳定性、鲁棒性强,能够有效检测轻微线刮伤。 |
| 英文摘要: |
| In the production and transportation p rocesses of the light guide plate,various defects,in particular,slight line scra tches,are inevitably caused.These defect areas cannot be accurately extracted by using the existing algorithm.In this paper,based on the analysis of the cause and imag ing characteristics of the slight scratch on the light guide plate,a method for detecting the slight line scratch on the light guide plate based on multi-directional Gabor filtering and sub-pixel analysis is proposed.Firstly, in order to highlight the defect area,a multi-directional Gabor filter is designed.Furthermore,the sub-pixel image ana lysis method is used to accurately segment the suspected defect area from the background image.Finally,the area sha pe feature is analyzed to accurately extract the slight line scratch defects.The experimental results sho w that the algorithm has high efficiency and accuracy,strong stability and robustness,and can effectively dete ct slight line scratches. |
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