JPEG AI压缩会干扰图像真伪检测,让伪造内容更难被发现。
Is JPEG AI going to change image forensics?
- 用神经网络压缩图像,产生类似伪造的视觉痕迹。
- 主流检测工具在处理JPEG AI图像时准确率显著下降。
- 提醒研究者需考虑新压缩标准,开发更强的鉴定方法。
本文研究基于神经图像压缩的新型JPEG AI标准对图像取证的反取证影响,重点关注深度伪造检测与图像拼接定位两个关键领域。神经图像压缩通过先进神经网络算法实现更高压缩率并保持画质,但其生成的伪影与图像合成和拼接技术产生的痕迹高度相似,使研究人员难以区分原始与篡改内容。我们在多个前沿检测器与数据集上开展全面实验,结果表明,使用JPEG AI处理后的图像使主流取证工具性能明显下降。该研究揭示现有取证工具的脆弱性,呼吁多媒体取证研究者将JPEG AI图像纳入实验体系,并开发能有效区分神经压缩伪影与真实篡改的鲁棒技术。
原文摘要 · Abstract (English)
In this paper, we investigate the counter-forensic effects of the new JPEG AI standard based on neural image compression, focusing on two critical areas: deepfake image detection and image splicing localization. Neural image compression leverages advanced neural network algorithms to achieve higher compression rates while maintaining image quality. However, it introduces artifacts that closely resemble those generated by image synthesis techniques and image splicing pipelines, complicating the work of researchers when discriminating pristine from manipulated content. We comprehensively analyze JPEG AI's counter-forensic effects through extensive experiments on several state-of-the-art detectors and datasets. Our results demonstrate a reduction in the performance of leading forensic detectors when analyzing content processed through JPEG AI. By exposing the vulnerabilities of the available forensic tools, we aim to raise the urgent need for multimedia forensics researchers to include JPEG AI images in their experimental setups and develop robust forensic techniques to distinguish between neural compression artifacts and actual manipulations.
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