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Conversational speech synthesis (CSS) aims to synthesize both contextually appropriate and expressive speech, and considerable efforts have been made to enhance the understanding of conversational context. However, existing CSS systems are…

Sound · Computer Science 2025-02-28 Weihao wu , Zhiwei Lin , Yixuan Zhou , Jingbei Li , Rui Niu , Qinghua Wu , Songjun Cao , Long Ma , Zhiyong Wu

Speech data on the Internet are proliferating exponentially because of the emergence of social media, and the sharing of such personal data raises obvious security and privacy concerns. One solution to mitigate these concerns involves…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-08 Jixun Yao , Qing Wang , Yi Lei , Pengcheng Guo , Lei Xie , Namin Wang , Jie Liu

Anti-spoofing is the task of speech authentication. That is, identifying genuine human speech compared to spoofed speech. The main focus of this paper is to suggest new representations for genuine and spoofed speech, based on the…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-28 Matan Karo , Arie Yeredor , Itshak Lapidot

Diffusion-based approaches have recently achieved strong results in face swapping, offering improved visual quality over traditional GAN-based methods. However, even state-of-the-art models often suffer from fine-grained artifacts and poor…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Weston Bondurant , Arkaprava Sinha , Hieu Le , Srijan Das , Stephanie Schuckers

With the rapid development of face recognition (FR) systems, the privacy of face images on social media is facing severe challenges due to the abuse of unauthorized FR systems. Some studies utilize adversarial attack techniques to defend…

Computer Vision and Pattern Recognition · Computer Science 2024-05-17 Yuhao Sun , Lingyun Yu , Hongtao Xie , Jiaming Li , Yongdong Zhang

Diffusion Models (DMs) have achieved remarkable success in realistic voice cloning (VC), while they also increase the risk of malicious misuse. Existing proactive defenses designed for traditional VC models aim to disrupt the forgery…

Sound · Computer Science 2025-12-10 Qianyue Hu , Junyan Wu , Wei Lu , Xiangyang Luo

As face recognition becomes more widespread in government and commercial services, its potential misuse raises serious concerns about privacy and civil rights. To counteract this threat, various anti-facial recognition techniques have been…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Youngjin Kwon , Xiao Zhang

Existing diffusion-based purification methods aim to disrupt adversarial perturbations by introducing a certain amount of noise through a forward diffusion process, followed by a reverse process to recover clean examples. However, this…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Gaozheng Pei , Shaojie Lyu , Gong Chen , Ke Ma , Qianqian Xu , Yingfei Sun , Qingming Huang

In latest years plethora of identity-preserving adapters for a personalized generation with diffusion models have been released. Their main disadvantage is that they are dominantly trained jointly with base diffusion models, which suffer…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Sergey Karpukhin , Vadim Titov , Andrey Kuznetsov , Aibek Alanov

Diffusion language models intrinsically fail to capture correlations between decoded tokens, which leads to a harsh trade-off between sampling quality and throughput. To solve this issue, we propose DiLaDiff, a variant of masked diffusion…

Machine Learning · Computer Science 2026-05-25 Jean-Marie Lemercier , Tomas Geffner , Karsten Kreis , Morteza Mardani , Arash Vahdat , Ante Jukić

Recent advances in latent diffusion models have demonstrated state-of-the-art performance in high-dimensional time-series data synthesis while providing flexible control through conditioning and guidance. However, existing methodologies…

Machine Learning · Computer Science 2025-11-11 Matteo Pettenó , Alessandro Ilic Mezza , Alberto Bernardini

In this work, we study Source-Free Unsupervised Domain Adaptation under corruption-induced domain shifts, where performance degradation is caused by natural image corruptions that go beyond additive noise, including blur, weather effects,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Francesco Olivato , Cigdem Beyan , Vittorio Murino

Current face anonymization techniques often depend on identity loss calculated by face recognition models, which can be inaccurate and unreliable. Additionally, many methods require supplementary data such as facial landmarks and masks to…

Computer Vision and Pattern Recognition · Computer Science 2024-11-04 Han-Wei Kung , Tuomas Varanka , Sanjay Saha , Terence Sim , Nicu Sebe

Anonymized data is highly valuable to both businesses and researchers. A large body of research has however shown the strong limits of the de-identification release-and-forget model, where data is anonymized and shared. This has led to the…

Cryptography and Security · Computer Science 2019-10-31 Andrea Gadotti , Florimond Houssiau , Luc Rocher , Benjamin Livshits , Yves-Alexandre de Montjoye

The growing use of portrait images in computer vision highlights the need to protect personal identities. At the same time, anonymized images must remain useful for downstream computer vision tasks. In this work, we propose a unified…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Ali Salar , Qing Liu , Guoying Zhao

Face anti-spoofing (FAS) plays a vital role in preventing face recognition (FR) systems from presentation attacks. Nowadays, FAS systems face the challenge of domain shift, impacting the generalization performance of existing FAS methods.…

Computer Vision and Pattern Recognition · Computer Science 2024-09-16 Xinxu Ge , Xin Liu , Zitong Yu , Jingang Shi , Chun Qi , Jie Li , Heikki Kälviäinen

Generative techniques for image anonymization have great potential to generate datasets that protect the privacy of those depicted in the images, while achieving high data fidelity and utility. Existing methods have focused extensively on…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Luca Piano , Pietro Basci , Fabrizio Lamberti , Lia Morra

Recordings in everyday life require privacy preservation of the speech content and speaker identity. This contribution explores the influence of noise and reverberation on the trade-off between privacy and utility for low-cost…

Audio and Speech Processing · Electrical Eng. & Systems 2026-02-04 Jule Pohlhausen , Francesco Nespoli , Joerg Bitzer

Anonymisation has the goal of manipulating speech signals in order to degrade the reliability of automatic approaches to speaker recognition, while preserving other aspects of speech, such as those relating to intelligibility and…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-02 Jose Patino , Natalia Tomashenko , Massimiliano Todisco , Andreas Nautsch , Nicholas Evans

Online Speech Enhancement was mainly reserved for predictive models. A key advantage of these models is that for an incoming signal frame from a stream of data, the model is called only once for enhancement. In contrast, generative Speech…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-22 Bunlong Lay , Rostislav Makarov , Simon Welker , Maris Hillemann , Timo Gerkmann