Rabbia Zia, Mariam Rehman, Afzaal Hussain, Shahbaz Nazeer, Maria Anjum
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引用次数: 0
摘要
利用计算机图形建模和人工智能技术创建的合成图像被称为深度伪造。它们利用生成模型和深度学习算法修改人体特征,有可能违反社交媒体法规并传播虚假信息。为了解决这些问题,该研究提出了一种改进的生成对抗网络(GAN)模型,该模型在提高准确性的同时,还能区分真实和虚假图像,重点关注 GAN 训练中的数据增强和标签平滑策略。该研究利用包含人脸的数据集,并采用 DCGAN(深度卷积生成式对抗网络)作为基础模型。与传统的 GAN 相比,所提出的 GAN 在常用指标(即弗雷谢特起始距离(FID)和准确率)方面表现更优。通过对 Flickr-Faces Nvidia 数据集和 Fakefaces d--ataset 数据集的评估,证明了该模型的有效性,其 FID 得分为 55.67,准确率为 98.82%,检测的 F1 分数为 0.99。本研究对模型参数进行了优化,以达到最佳参数设置。本研究对模型参数进行微调,以达到最佳参数设置,从而降低合成图像生成的风险。文章介绍了一种有效的图像处理和检测框架。
Improving synthetic media generation and detection using generative adversarial networks.
Synthetic images ar---e created using computer graphics modeling and artificial intelligence techniques, referred to as deepfakes. They modify human features by using generative models and deep learning algorithms, posing risks violations of social media regulations and spread false information. To address these concerns, the study proposed an improved generative adversarial network (GAN) model which improves accuracy while differentiating between real and fake images focusing on data augmentation and label smoothing strategies for GAN training. The study utilizes a dataset containing human faces and employs DCGAN (deep convolutional generative adversarial network) as the base model. In comparison with the traditional GANs, the proposed GAN outperform in terms of frequently used metrics i.e., Fréchet Inception Distance (FID) and accuracy. The model effectiveness is demonstrated through evaluation on the Flickr-Faces Nvidia dataset and Fakefaces d--ataset, achieving an FID score of 55.67, an accuracy of 98.82%, and an F1-score of 0.99 in detection. This study optimizes the model parameters to achieve optimal parameter settings. This study fine-tune the model parameters to reach optimal settings, thereby reducing risks in synthetic image generation. The article introduces an effective framework for both image manipulation and detection.
期刊介绍:
PeerJ Computer Science is the new open access journal covering all subject areas in computer science, with the backing of a prestigious advisory board and more than 300 academic editors.