تشخیص نواحی معیوب پارچه مبتنی برخوشهبندی و عملگرهای ریخت شناسی
الموضوعات :اکرم محمدی سومار 1 , مهران عمادی 2
1 - گروه مهندسی برق- واحد مبارکه، دانشگاه آزاد اسلامی، مبارکه، اصفهان، ایران
2 - گروه مهندسی برق- واحد مبارکه، دانشگاه آزاد اسلامی، مبارکه، اصفهان، ایران
الکلمات المفتاحية: پارچه معیوب, ناحیه بندی, عملگرهای ریخت شناسی, کانتورفعال,
ملخص المقالة :
در مراحل مختلف تولید پارچه، خرابیهایی متعددی برسطح پارچه ظاهر میشود. با چشم پوشی از دلایل ایجاد خرابی ها، تشخیص دقیق انواع آنها به طبقه بندی صحیح پارچه کمک میکند و در نتیجه درصد بالایی از فرآیند کنترل کیفیت را به خود اختصاص میدهد. کنترل کیفیت پارچه به منظور بهبود کیفیت محصول و حفظ بازار رقابتی از اهمیت بالایی برخوردار است. همچنین شناسایی نواحی معیوب در روش های خودکار از اهمیت ویژه ای برخورداراست. در این مقاله، یک روش جدید، جهت ناحیه بندی نواحی معیوب پارچه ، مبتنی بر خوشه بندی و همچنین عملگرهای ریخت شناسی ارائه شده است. در روش پیشنهادی، پس از پیش پردازش های لازم جهت بهبود کیفیت تصویر، در مرحله اول روی تصویر خوشه بندی صورت میگیرد، تا نواحی مشابه ایجاد شوند. سپس عملگرهای ریخت شناسی به کار گرفته می شوند تا ناحیه معیوب استخراج شود. استفاده از ترکیب هوشمندانه عملگرهای ریخت شناسی، سبب شناسایی دقیق نواحی معیوب درتصویر پارچه شده است. نمایش ناحیه معیوب به کمک الگوریتم کانتور فعال صورت می گیرد. اگرچه تاکنون روش های متعددی همچون الگوهای محلی دودویی و سایر روش ها ارائه شده است، اما سرعت شناسایی این الگوریتم ها پایین بوده و پیچیدگی محاسباتی بالایی دارند. روش پیشنهادی روی پایگاه داده CMUPIE، پیاده سازی شده و به کمک معیارهای صحت و دقت ارزیابی شده است. صحت شناسایی نواحی معیوب در روش پیشنهادی، 82/93درصد و دقت روش پیشنهاد شده، 33/98 درصد حاصل گردیده است که در مقایسه با روش های مشابه، بهبود چشم گیری داشته است
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