Learning Transformation-Aware Embeddings for Image Forensics

• URL: http://arxiv.org/abs/2001.04547v1
• Date: Mon, 13 Jan 2020 22:01:24 GMT
• Title: Learning Transformation-Aware Embeddings for Image Forensics
• Authors: Aparna Bharati, Daniel Moreira, Patrick Flynn, Anderson Rocha, Kevin Bowyer, Walter Scheirer
• Abstract summary: Image Provenance Analysis aims at discovering relationships among different manipulated image versions that share content. One of the main sub-problems for provenance analysis that has not yet been addressed directly is the edit ordering of images that share full content or are near-duplicates. This paper introduces a novel deep learning-based approach to provide a plausible ordering to images that have been generated from a single image through transformations.
• Score: 15.484408315588569
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: A dramatic rise in the flow of manipulated image content on the Internet has led to an aggressive response from the media forensics research community. New efforts have incorporated increased usage of techniques from computer vision and machine learning to detect and profile the space of image manipulations. This paper addresses Image Provenance Analysis, which aims at discovering relationships among different manipulated image versions that share content. One of the main sub-problems for provenance analysis that has not yet been addressed directly is the edit ordering of images that share full content or are near-duplicates. The existing large networks that generate image descriptors for tasks such as object recognition may not encode the subtle differences between these image covariates. This paper introduces a novel deep learning-based approach to provide a plausible ordering to images that have been generated from a single image through transformations. Our approach learns transformation-aware descriptors using weak supervision via composited transformations and a rank-based quadruplet loss. To establish the efficacy of the proposed approach, comparisons with state-of-the-art handcrafted and deep learning-based descriptors, and image matching approaches are made. Further experimentation validates the proposed approach in the context of image provenance analysis.

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