MIPGAN – Generating Robust and High Quality Morph Attacks Using Identity Prior Driven GAN

09/03/2020 ∙ by Haoyu Zhang, et al. ∙ 10

Face morphing attacks target to circumvent Face Recognition Systems (FRS) by employing face images derived from multiple data subjects (e.g., accomplices and malicious actors). Morphed images can verify against contributing data subjects with a reasonable success rate, given they have a high degree of identity resemblance. The success of the morphing attacks is directly dependent on the quality of the generated morph images. We present a new approach for generating robust attacks extending our earlier framework for generating face morphs. We present a new approach using an Identity Prior Driven Generative Adversarial Network, which we refer to as MIPGAN (Morphing through Identity Prior driven GAN). The proposed MIPGAN is derived from the StyleGAN with a newly formulated loss function exploiting perceptual quality and identity factor to generate a high quality morphed face image with minimal artifacts and with higher resolution. We demonstrate the proposed approach's applicability to generate robust morph attacks by evaluating it against a commercial Face Recognition System (FRS) and demonstrate the success rate of attacks. Extensive experiments are carried out to assess the FRS's vulnerability against the proposed morphed face generation technique on three types of data such as digital images, re-digitized (printed and scanned) images, and compressed images after re-digitization from newly generated MIPGAN Face Morph Dataset. The obtained results demonstrate that the proposed approach of morph generation profoundly threatens the FRS.

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