计算机工程与设计
計算機工程與設計
계산궤공정여설계
COMPUTER ENGINEERING AND DESIGN
2015年
4期
991-994
,共4页
陈广锋%黄青青%李江华%魏鑫%翟琳琳
陳廣鋒%黃青青%李江華%魏鑫%翟琳琳
진엄봉%황청청%리강화%위흠%적림림
簇绒地毯%机器视觉%最大熵%小波分解%疵点检测%阈值分割
簇絨地毯%機器視覺%最大熵%小波分解%疵點檢測%閾值分割
족융지담%궤기시각%최대적%소파분해%자점검측%역치분할
tufted carpet%machine vision%maximum entropy%wavelet decomposition%defect detection%threshold segmentation
针对簇绒地毯中的断纱疵点,提出一种基于机器视觉与最大熵的疵点检测方法。利用机器视觉获取地毯图像,用软阈值法对所得图像去噪,对图像进行三层小波分解重构,弱化图像中的正常纹理部分,突出疵点部分;计算小波分解得到的水平和竖直细节图像的熵曲线,通过计算得到的曲线图进行疵点检测,通过曲线的突变位置判断疵点的位置;进一步采用基于最大熵的阈值分割法进行阈值分割,用窗口分割法对疵点部分进行定位。
針對簇絨地毯中的斷紗疵點,提齣一種基于機器視覺與最大熵的疵點檢測方法。利用機器視覺穫取地毯圖像,用軟閾值法對所得圖像去譟,對圖像進行三層小波分解重構,弱化圖像中的正常紋理部分,突齣疵點部分;計算小波分解得到的水平和豎直細節圖像的熵麯線,通過計算得到的麯線圖進行疵點檢測,通過麯線的突變位置判斷疵點的位置;進一步採用基于最大熵的閾值分割法進行閾值分割,用窗口分割法對疵點部分進行定位。
침대족융지담중적단사자점,제출일충기우궤기시각여최대적적자점검측방법。이용궤기시각획취지담도상,용연역치법대소득도상거조,대도상진행삼층소파분해중구,약화도상중적정상문리부분,돌출자점부분;계산소파분해득도적수평화수직세절도상적적곡선,통과계산득도적곡선도진행자점검측,통과곡선적돌변위치판단자점적위치;진일보채용기우최대적적역치분할법진행역치분할,용창구분할법대자점부분진행정위。
A broken ends defect detection method for tufted carpet based on machine vision and maximum entropy was proposed. The carpet’s image obtained by cameras was given to the image processing system.A soft-threshold method was used for image de-noising,and three-level wavelet decomposition was used to reconstruct image,weakening normal texture images and high-lighting the defect part.The entropy curve of horizontal and vertical detail image got by wavelet decomposition was computed. Through the curve,defect detection was done,and the position of these defects was got through the mutation of the curve. What’s more,maximum entropy was applied to threshold segmentation,and window split method was used to locate defects.