CLASSIFICATION OF X-RAY AND CT IMAGES IN DIFFERENT COLOR SPACES USING ROBUST CNN

Year 2024, Volume: 12 Issue: 3, 505 - 516, 26.09.2024

Nesrin Aydın Atasoy , İrem Kura

https://doi.org/10.21923/jesd.1415150

Abstract

Since deep learning models have been successfully used in many fields, they have been used to identify sick and healthy people in X-ray or Computed Tomography (CT) chest radiology images. In this study, Covid-19 and pneumonia classification is performed on both X-ray and CT images using the robust Convolutional Neural Network (CNN). BGR, HSV, and CIE LAB color space transformations are applied to X-ray and CT images to show that the model performs a successful classification independent of dataset characteristics. The binary classification accuracy rates of Covid-19 and pneumonia for X-ray images and CT images are 98.7% and 98.4%, 97.6% and 99.4%, respectively. Precision, Recall, Specificity, F1 score, and Mean Squared Error metrics are calculated for each X-ray and CT dataset. In addition, 5-fold cross-validation proved accuracy of the model. Although X-ray and CT chest radiology images are transformed into different color spaces, the proposed model performed a successful classification. Thus, even if the image characteristics of the radiology device brands change, the computer-based system will be able to make successful disease diagnoses at low cost where expert personnel are insufficient.

Keywords

Convolutional Neural Network, Covid-19 Detection, CT and X-ray Chest Image, Pneumonia

FARKLI RENK UZAYLARINDAKİ X-RAY VE BT GÖRÜNTÜLERİNİN GÜÇLÜ ESA İLE SINIFLANDIRILMASI

Abstract

Derin öğrenme modelleri birçok alanda başarıyla kullanıldığından beri, X-ray veya Bilgisayarlı Tomografi göğüs radyolojisi görüntülerinde hasta ve sağlıklı kişileri tanılamak için kullanılmaktadır. Bu çalışmada, güçlü Evrişimsel Sinir Ağı (ESA) kullanılarak hem X-ray hem de BT görüntüleri üzerinde Covid-19 ve zatürre hastalığı sınıflandırması gerçekleştirilmektedir. BGR, HSV ve CIE LAB renk uzayı dönüşümleri; modelin veri kümesi özelliklerinden bağımsız olarak başarılı bir sınıflandırma gerçekleştirdiğini göstermek için X-ray ve BT görüntülerine uygulanmıştır. Röntgen ve BT görüntülerinin için Covid-19 ve zatürre olmak üzere ikili sınıflandırma doğruluk oranları sırasıyla %98,7 ve %98,4, %97,6 ve %99,4'tür. Her X-ray ve BT veri seti için Kesinlik, Geri Çağırma, Özgüllük, F1 puanı ve Ortalama Karesel Hata metrikleri hesaplanmıştır. Ayrıca, 5 kat çapraz doğrulama modelin doğruluğunu kanıtlamıştır. X-ray ve BT göğüs radyolojisi görüntüleri farklı renk uzaylarına dönüştürülmesine rağmen, önerilen model başarılı bir sınıflandırma gerçekleştirmiştir. Böylece radyoloji cihazı markalarının görüntü özellikleri değişse bile bilgisayar tabanlı sistem, uzman personelin yetersiz olduğu yerlerde düşük maliyetle başarılı hastalık teşhisleri yapabilecektir.

Keywords

Evrişimli Sinir Ağı, Covid-19 Tespiti, BT and Röntgen Göğüs Görüntüsü, Zatürre

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