Multi-IVE: Privacy Enhancement of Multiple Soft-Biometrics in Face Embeddings
| Type of publication: | Conference paper |
| Citation: | Melzi_WACVW_2023 |
| Publication status: | Published |
| Booktitle: | Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision |
| Year: | 2023 |
| Month: | January |
| URL: | https://openaccess.thecvf.com/... |
| Abstract: | This study focuses on the protection of soft-biometric attributes related to the demographic information of individuals that can be extracted from compact representations of face images, called embeddings. We consider a state-of-the-art technology for soft-biometric privacy enhancement, Incremental Variable Elimination (IVE), and propose Multi-IVE, a new method based on IVE to secure multiple soft-biometric attributes simultaneously. Several aspects of this technology are investigated, proposing different approaches to effectively identify and discard multiple soft-biometric attributes contained in face embeddings. In particular, we consider a domain transformation using Principle Component Analysis (PCA), and apply IVE in the PCA domain. A complete analysis of the proposed Multi-IVE algorithm is carried out studying the embeddings generated by state-of-the-art face feature extractors, predicting soft-biometric attributes contained within them with multiple machine learning classifiers, and providing a cross-database evaluation. The results obtained show the possibility to simultaneously secure multiple soft-biometric attributes and support the application of embedding domain transformations before addressing the enhancement of soft-biometric privacy. |
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| Added by: | [UNK] |
| Total mark: | 0 |
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