arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.07084cs.CVcs.LGeess.IV
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研究预处理和预测聚合对DeepFake检测任务的影响

Investigating the Impact of Pre-processing and Prediction Aggregation on the DeepFake Detection Task

Information Technologies Institute, CERTH(希腊研究与技术中心信息技术研究所)

Polychronis Charitidis, Giorgos Kordopatis-Zilos, Symeon Papadopoulos, Ioannis Kompatsiaris

摘要:

内容生成技术(广泛称为DeepFakes)的最新进展以及被操纵的媒体内容的在线扩散使得检测这种操纵成为越来越重要的任务。尽管有许多DeepFake检测方法,但只有少数专注于数据集预处理和帧级到视频级预测的聚合对模型性能的影响。在本文中,我们提出了一个预处理步骤,以提高训练数据质量,并检查其对DeepFake检测性能的影响。我们还提出并评估了视频级预测聚合方法的效果。实验结果表明,所提出的预处理方法显著提高了检测模型的性能,而所提出的预测聚合方法在视频中存在多个人脸的情况下进一步提高了检测效率.

英文摘要:

Recent advances in content generation technologies (widely known as DeepFakes) along with the online proliferation of manipulated media content render the detection of such manipulations a task of increasing importance. Even though there are many DeepFake detection methods, only a few focus on the impact of dataset preprocessing and the aggregation of frame-level to video-level prediction on model performance. In this paper, we propose a pre-processing step to improve the training data quality and examine its effect on the performance of DeepFake detection. We also propose and evaluate the effect of video-level prediction aggregation approaches. Experimental results show that the proposed pre-processing approach leads to considerable improvements in the performance of detection models, and the proposed prediction aggregation scheme further boosts the detection efficiency in cases where there are multiple faces in a video.

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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