Evrişimsel Sinir Ağı Tabanlı Hibrit Yaklaşım Kullanılarak Deepfake Video Algılama

Yıl 2024, ERKEN GÖRÜNÜM, 1 - 1

Aynur Koçak , Mustafa Alkan , Süleyman Muhammed Arıkan

https://doi.org/10.2339/politeknik.1523983

Öz

Son derece gerçekçi sahte içeriklerin oluşturulmasına olanak tanıyan deepfake teknolojisinin hızla ilerlemesi göz önüne alındığında, bu teknolojiyle ilişkili güvenlik risklerini ele almak için etkili bir çözüme acil ihtiyaç duyulmaktadır. Deepfake videoları, kimlik hırsızlığı potansiyeli, yanlış bilginin yayılması ve ulusal güvenliğin tehlikeye atılması gibi önemli etkileri nedeniyle yaygın olarak bilinmektedir. Bu nedenle, deepfake tespit algoritmalarının geliştirilmesi ve güvenilirliğinin artırılması hayati önem taşımaktadır. Bu çalışmada, DFDC veri setini kullanarak bir video veri setindeki deepfake'leri tespit etmek için Xception ve ResNet50 gibi derin öğrenme algoritmalarını kullanmak üzere özellik çıkarma teknikleri gerçekleştirildi. Ek olarak, SVM, KNN, MLP ve RF gibi çeşitli sınıflandırma algoritmaları kullanılarak toplam sekiz hibrit model geliştirildi. ResNet50 ve RF hibrit modelleri, %99,65'lik bir AUC değeriyle %98'lik en yüksek doğruluk oranına ulaştı. Bu çalışma, deepfake tespiti alanındaki farklı teknik zorlukları ele almak ve deepfake'leri etkili bir şekilde tespit etmek için geliştirilen bir makine öğrenimi yöntemini sunmaktadır. Önerilen yöntem, videolardaki sahte içeriği doğru bir şekilde tespit etmede etkinliğini kanıtlayarak, mevcut modellerle karşılaştırıldığında başarılı bir performans göstermiştir.

Anahtar Kelimeler

sahte video tespiti, derin öğrenme, makine öğrenimi, Xception, ResNet50

Deepfake Video Detection Using Convolutional Neural Network Based Hybrid Approach

Öz

Given the rapid advancement of deepfake technology, which allows for the creation of highly realistic fake content, there is a pressing need for an efficient solution to address the security risks associated with this technology. Deepfake videos are widely recognized for their significant implications, including the potential for identity theft, the dissemination of false information, and the endangerment of national security. Therefore, it is crucial to develop and enhance the reliability of deepfake detection algorithms. In this study, feature extraction techniques were performed to utilize deep learning algorithms such as Xception and ResNet50 to detect deepfakes in a video dataset using the DFDC dataset. Additionally, a total of eight hybrid models were developed using various classification algorithms such as SVM, KNN, MLP, and RF. The ResNet50 and RF hybrid models achieved the highest accuracy rate of 98%, with an AUC value of 99.65%. This study presents a machine learning method that has been developed to address different technical challenges in the field of deepfake detection and effectively identify deepfakes. The proposed method has demonstrated successful performance compared to state-of-the-art models, proving its effectiveness in accurately detecting fake content within videos.

Anahtar Kelimeler

Deepfake video detection, deep learning, machine learning, Xception, ResNet50

Kaynakça

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