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Register a new userEar segmentation using likelihood skin detector and morphological operations
اقتطاع منطقة الأذن من الصور الجانبية للوجه باستخدام كاشف الجلد المعتمد على الأرجحية و العمليات المورفولوجية
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تقدم الدراسة طريقة جديدة لتحديد منطقة الأذن و اقتطاعها من الصور الجانبية للوجه، تمهيداً لاستخدامها لاحقاً في عملية تعرف الأشخاص باستخدام الأذن. تتضمن هذه الطريقة مرحلتين أساسيتين، حيث يتم ضمن المرحلة الأولى تصنيف بكسلات الصورة على أنها من منطقة الجلد أو منطقة اللاجلد باستخدام كاشف الجلد المعتمد على الأرجحية، ثم يتم استخدام العمليات المورفولوجية لاستكمال عملية تحديد منطقة الأذن، بينما يتم في المرحلة الثانية اقتطاع صورة الأذن اعتماداً على ناتج المرحلة السابقة، حيث تم اقتراح طريقتين لتحقيق ذلك تعتمد الأولى منهما على التجريب بينما تعتمد الثانية على القياس. تتضمن الدراسة أيضاً مقارنة نتائج الطريقة المقترحة مع الطرق السابقة في هذا المجال، و قد تم تطبيق الطريقة المقترحة على قاعدة بيانات مكونة من 146 صورة تعود إلـى 20 شخصاً، حيث تم الأخذ بعين الاعتبار تغيرات الإضاءة و الموقع، و اختلاف أيام التصوير و مواقعه، و تغطية الأذن جزئياً بالشعر أو الأقراط، و نتيجة لذلك تم اقتطاع صورة الأذن بنجاح بنسبة 95.8%.
This paper proposes a new approach for the segmentation of the side face images to obtain the ear region. The proposed approach is divided into two basic steps: The first step classifies the image pixels into skin and non-skin pixels using likelihood skin detector. This likelihood image is processed by using morphological operations to detect the ear region. In the second step, image containing ear region is isolated from side face image by using one of two methods; the first is based on experiment, while the second is based measurements. The study includes a comparison of the results between the proposed study and previous ones to identify the differences. The proposed approach is applied on a database containing 146 images of 20 persons. These images were taken under different illumination, pose, day, and location variations. The partial occlusion by hair or earing was also taken in account. The results showed that the system achieved a correct segmentation with rate 95.8%.
References used
CIARAN O’ CONAIRE, NOEL E. O'CONNOR, and ALAN F. SMEATON. Detector adaptation by maximising agreement between independent data sources, In CVPR. IEEE Computer Society, 2007
ALI, M., JAVED, M. Y., and BASIT, A., Ear Recognition Using Wavelets, Proceedings of Image and Vision Computing New Zealand, 2007, 83–86
SALEH, M., FADEL, S. and ABBOTT, L., Ears as a Biometric for Human Recognition, ICCTA, September 2006, 5-7
DARAMOLA, S. A., OLUWANINYO, O. D., Automatic Ear Recognition System using Back Propagation Neural Network, International Journal of Video & Image Processing and Network Security IJVIPNS-IJENS, Vol: 11 No: 01, February 2011, 28-32
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