تشخیص نواحی معیوب پارچه مبتنی برخوشه‌بندی و عملگرهای ریخت شناسی

روش‌های هوشمند در صنعت برق

مقاله 1، دوره 11، شماره 41، اردیبهشت 1399، صفحه 1-14   

نوع مقاله: مقاله پژوهشی

نویسندگان

اکرم محمدی سومار؛ مهران عمادی^*

گروه مهندسی برق- واحد مبارکه، دانشگاه آزاد اسلامی، مبارکه، اصفهان، ایران

چکیده

در مراحل مختلف تولید پارچه، خرابی‌هایی متعددی برسطح پارچه ظاهر می‌شود. با چشم­پوشی از دلایل ایجاد خرابی­‌ها، تشخیص دقیق انواع آن‌ها به طبقه­بندی 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 روش­های خودکار از اهمیت ویژه­ای برخورداراست. در این مقاله، یک روش جدید، جهت ناحیه­بندی نواحی معیوب پارچه­، مبتنی بر خوشه­بندی و همچنین عملگرهای ریخت­شناسی ارائه شده است. در روش پیشنهادی، پس از پیش پردازش­های لازم جهت بهبود کیفیت تصویر، در مرحله اول روی تصویر خوشه­بندی صورت می‌گیرد، تا نواحی مشابه ایجاد شوند. سپس عملگرهای ریخت­شناسی به­کار گرفته می­شوند تا ناحیه معیوب استخراج شود. استفاده از ترکیب هوشمندانه عملگرهای ریخت­شناسی، سبب شناسایی دقیق نواحی معیوب درتصویر پارچه شده است. نمایش ناحیه معیوب به کمک الگوریتم کانتور فعال صورت می­گیرد. اگرچه تاکنون روش­های متعددی همچون الگوهای محلی دودویی و سایر روش­ها ارائه شده است، اما سرعت شناسایی این الگوریتم­ها پایین بوده و پیچیدگی محاسباتی بالایی دارند. روش پیشنهادی روی پایگاه داده CMUPIE، پیاده­سازی 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 روش­های مشابه، بهبود چشم­گیری داشته است

کلیدواژه‌ها

پارچه معیوب؛ ناحیه بندی؛ عملگرهای ریخت شناسی؛ کانتورفعال

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