Face Re-morphing: Differential Morphing Attack Detection via Feature-Space Similarity Changes
Abstract
Face morphing attacks pose a serious threat to face recognition systems because a single morphed document image can be matched to multiple contributors. Face Re-morphing uses the feature-space response to an additional morphing operation as a detection cue. Given a document image and a trusted live image, the method generates a re-morphed image and computes the similarity change between the original pair and the live-re-morphed pair. Experiments on FRLL-Morphs and FEI Morph show that this re-morphing-induced similarity change provides a complementary cue for differential morphing attack detection.