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arXiv 2103.08134cs.CV
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人脸表情操作的检测与定位

Detection and Localization of Facial Expression Manipulations

University of California, Riverside(加利福尼亚大学河滨分校)

Ghazal Mazaheri, Amit K. Roy-Chowdhury

摘要:

对社交媒体中广泛使用欺诈性图像/视频的担忧需要精确检测此类欺诈行为。面部表情在通信中的重要性是众所周知的,并且对抗攻击通常集中于操纵表情相关特征。因此,重要的是要开发的方法,可以检测面部表情中的操纵,并定位的操纵区域。为了解决这个问题,我们提出了一个框架,能够检测操作的面部表情识别和图像处理方法的紧密结合。随着从面部表情识别框架中提取的特征图的加入,我们的操纵检测器能够定位被操纵的区域。我们表明,在Face 2Face数据集上,有丰富的表情操作,与最先进的方法相比,我们的方法在分类和定位操作方面的准确率都提高了3%以上。此外,NeuralTextures数据集上的结果显示,与嘴部区域对应的面部表情已经被修改,在分类和操作定位方面的准确度都提高了2%。我们证明了该方法在表达不被操纵,而是身份被改变的情况下,与最先进的方法相一致,从而确保了该方法的普遍性。

英文摘要:

Concern regarding the wide-spread use of fraudulent images/videos in social media necessitates precise detection of such fraud. The importance of facial expressions in communication is widely known, and adversarial attacks often focus on manipulating the expression related features. Thus, it is important to develop methods that can detect manipulations in facial expressions, and localize the manipulated regions. To address this problem, we propose a framework that is able to detect manipulations in facial expression using a close combination of facial expression recognition and image manipulation methods. With the addition of feature maps extracted from the facial expression recognition framework, our manipulation detector is able to localize the manipulated region. We show that, on the Face2Face dataset, where there is abundant expression manipulation, our method achieves over 3% higher accuracy for both classification and localization of manipulations compared to state-of-the-art methods. In addition, results on the NeuralTextures dataset where the facial expressions corresponding to the mouth regions have been modified, show 2% higher accuracy in both classification and localization of manipulation. We demonstrate that the method performs at-par with the state-of-the-art methods in cases where the expression is not manipulated, but rather the identity is changed, thus ensuring generalizability of the approach.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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