中国机械工程2016，Vol.27Issue(21)：2895-2901,7.DOI:10.3969/j.issn.1004-132X.2016.21.010
TFT-LCD表面缺陷检测中一维DFT方法中邻域r的自动选取
Automatic Neighbor r Selection for One-dimensional DFT Method in the Surface Defect Inspection of TFT-LCD
摘要
Abstract
In order to obtain neighbor r automatically,each line of a faultless surface image for TFT-LCD panel was preprocessed firstly in the detection of surface defects on TFT-LCD panel.Then thier gray level co-occurrence matrix (GLCM)was calculated,and the homogeneity property of the GLCM was extracted.Finally,the difference of homogeneity was computed,and the optimal neighbor was that level where the difference showed a maximum value.An experimental system of TFT-LCD panel detection was built.The images with various length including integer-period,non-integer-period and non-integer-period filled into integer-period were processed in the experiments.From the acquisi-tion of r,it may be seen that the r for non-integer-period fills into integer-period is the same as it for integer-period under the same environments.And by applying the results into actual defect detection, the system may detect the defects accurately.关键词
薄膜晶体管-液晶显示器/缺陷检测/灰度共生矩阵/一维离散傅里叶变换/邻域rKey words
thin film transistor-liquid crystal display/defect detection/gray level co-occurrence matrix/one-dimensional discrete Fourier transform(DFT)/neighbor r分类
信息技术与安全科学引用本文复制引用
张腾达,卢荣胜,党学明..TFT-LCD表面缺陷检测中一维DFT方法中邻域r的自动选取[J].中国机械工程,2016,27(21):2895-2901,7.基金项目
国家重大科学仪器设备开发专项资助项目(2013YQ220749) （2013YQ220749）
