Towards Exploring Fairness in Visual Transformer based Natural and GAN Image Detection Systems

• URL: http://arxiv.org/abs/2310.12076v2
• Date: Sat, 16 Nov 2024 17:40:06 GMT
• Title: Towards Exploring Fairness in Visual Transformer based Natural and GAN Image Detection Systems
• Authors: Manjary P. Gangan, Anoop Kadan, Lajish V L,
• Abstract summary: This study explores bias in visual transformer based image forensic algorithms that classify natural and GAN images. The proposed study procures bias evaluation corpora to analyze bias in gender, racial, affective, and intersectional domains. It also analyzes the impact of image compression on model bias.
• Score: 0.0
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• Abstract: Image forensics research has recently witnessed a lot of advancements towards developing computational models capable of accurately detecting natural images captured by cameras and GAN generated images. However, it is also important to ensure whether these computational models are fair enough and do not produce biased outcomes that could eventually harm certain societal groups or cause serious security threats. Exploring fairness in image forensic algorithms is an initial step towards mitigating these biases. This study explores bias in visual transformer based image forensic algorithms that classify natural and GAN images, since visual transformers are recently being widely used in image classification based tasks, including in the area of image forensics. The proposed study procures bias evaluation corpora to analyze bias in gender, racial, affective, and intersectional domains using a wide set of individual and pairwise bias evaluation measures. Since the robustness of the algorithms against image compression is an important factor to be considered in forensic tasks, this study also analyzes the impact of image compression on model bias. Hence to study the impact of image compression on model bias, a two-phase evaluation setting is followed, where the experiments are carried out in uncompressed and compressed evaluation settings. The study could identify bias existences in the visual transformer based models distinguishing natural and GAN images, and also observes that image compression impacts model biases, predominantly amplifying the presence of biases in class GAN predictions.

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