تحديد مستوى السائل في صور عبوات زجاجية باستخدام تحويل هاف Hough
Abstract
يقدم هذا البحث تطبيقاً عملياً هاماً لتقنية أساسية تستخدم بشكل واسع في تطبيقات معالجة الصورة لاكتشاف الأشكال الهندسية وهي تقنية تحويل هاف.
بعد تبيان أهمية البحث، تم تمهيد الفكرة الرئيسية بعرض لمقدمة عن معالجة الصور وتقنياتها المختلفة مع التركيزعلى تقنيات كشف الحواف التي تعتبر الخطوة الأولية التي تطبق عادة والتي تسبق تطبيق تقنية تحويل هاف. قدمت بعدها مناقشة تحليلية للمعنى الرياضي للتحويل، وذلك لاستخدامه في اكتشاف الخطوط المستقيمة، مع مثال نظري باستخدام برنامج ماتلاب. بعد ذلك تم تقديم التطبيق العملي وهو نظام مراقبة مستوى السائل ( الماء) في قوارير متوضعة على سير نقال. تم تصميم هذا النظام كاملاً كعتاد و برمجيات في مخبر قسم الميكاترونيك في جامعة تشرين. بينت النتائج في الاختبار فاعلية تحويل هاف في اكتشاف مستوى السائل الأفقي ضمن صور القوارير الممررة أمام عدسة الكاميرا.
The objective of this paper is to introduce an important practical application of an essential technique in image processing called Hough transform. This transform is widely used to detect geometric patterns in images.
After emphasizing the importance of this work, the paper gives a brief introduction of image processing techniques in general with emphasis on edge detection methods. These methods precede and prepare images for the application of Hough transform. After that, Hough transform is introduced through a mathematical analysis. The applicability of this transform was shown through a simulated design of a machine vision system used to detect liquid level in bottles passing on a belt in front of a camera. The results showed the effectiveness of using this technique in detecting the liquid level.
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