评估和改进计算机生成肖像的识别

IF 1.9 4区 计算机科学 Q3 COMPUTER SCIENCE, SOFTWARE ENGINEERING ACM Transactions on Applied Perception Pub Date : 2016-03-03 DOI:10.1145/2871714
Olivia Holmes, M. Banks, H. Farid
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引用次数: 27

摘要

现代计算机图形学能够生成高度逼真的图像。虽然这可以被认为是计算机图形界的成功,但它也引起了复杂的法医和法律问题。一个引人注目的例子是,在涉及美国儿童色情制品的合法性和起诉时,需要区分计算机生成的图像和摄影图像。我们进行了心理物理实验,以确定观察者能够区分计算机生成图像和摄影图像的准确性。我们发现观察者在执行这项任务时相当困难——比我们5年前观察到的困难得多,当时计算机生成的图像还不像照片那样逼真。我们还发现,观察者更有可能报告图像是摄影而不是计算机生成的,而且分辨率对表现的影响令人惊讶地小。最后,我们发现少量的训练大大提高了准确率。
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Assessing and Improving the Identification of Computer-Generated Portraits
Modern computer graphics are capable of generating highly photorealistic images. Although this can be considered a success for the computer graphics community, it has given rise to complex forensic and legal issues. A compelling example comes from the need to distinguish between computer-generated and photographic images as it pertains to the legality and prosecution of child pornography in the United States. We performed psychophysical experiments to determine the accuracy with which observers are capable of distinguishing computer-generated from photographic images. We find that observers have considerable difficulty performing this task—more difficulty than we observed 5 years ago when computer-generated imagery was not as photorealistic. We also find that observers are more likely to report that an image is photographic rather than computer generated, and that resolution has surprisingly little effect on performance. Finally, we find that a small amount of training greatly improves accuracy.
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来源期刊
ACM Transactions on Applied Perception
ACM Transactions on Applied Perception 工程技术-计算机:软件工程
CiteScore
3.70
自引率
0.00%
发文量
22
审稿时长
12 months
期刊介绍: ACM Transactions on Applied Perception (TAP) aims to strengthen the synergy between computer science and psychology/perception by publishing top quality papers that help to unify research in these fields. The journal publishes inter-disciplinary research of significant and lasting value in any topic area that spans both Computer Science and Perceptual Psychology. All papers must incorporate both perceptual and computer science components.
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