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Recognition of low resolution face images is a challenging problem in many practical face recognition systems. Methods have been proposed in the face recognition literature for the problem which assume that the probe is low resolution, but…

Computer Vision and Pattern Recognition · Computer Science 2017-07-11 Sumit Shekhar , Vishal M. Patel , Rama Chellappa

Recent developments in face restoration have achieved remarkable results in producing high-quality and lifelike outputs. The stunning results however often fail to be faithful with respect to the identity of the person as the models lack…

Computer Vision and Pattern Recognition · Computer Science 2024-03-14 Tuomas Varanka , Tapani Toivonen , Soumya Tripathy , Guoying Zhao , Erman Acar

While deep learning-based methods for blind face restoration have achieved unprecedented success, they still suffer from two major limitations. First, most of them deteriorate when facing complex degradations out of their training data.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Zongsheng Yue , Chen Change Loy

Blind face restoration is a highly ill-posed problem due to the lack of necessary context. Although existing methods produce high-quality outputs, they often fail to faithfully preserve the individual's identity. In this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2025-01-13 Siyu Liu , Zheng-Peng Duan , Jia OuYang , Jiayi Fu , Hyunhee Park , Zikun Liu , Chun-Le Guo , Chongyi Li

Modern diffusion-based inpainting models pose significant challenges for image forgery localization (IFL), as their full regeneration pipelines reconstruct the entire image via a latent decoder, disrupting the camera-level noise patterns…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Paschalis Giakoumoglou , Symeon Papadopoulos

Image diffusion has recently shown remarkable performance in image synthesis and implicitly as an image prior. Such a prior has been used with conditioning to solve the inpainting problem, but only supporting binary user-based conditioning.…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Majed El Helou

The rapid evolution of generative adversarial networks (GANs) and diffusion models has made synthetic media increasingly realistic, raising societal concerns around misinformation, identity fraud, and digital trust. Existing deepfake…

Computer Vision and Pattern Recognition · Computer Science 2025-11-03 Sales Aribe

Diffusion models are a class of generative models that have been recently used for speech enhancement with remarkable success but are computationally expensive at inference time. Therefore, these models are impractical for processing…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-15 Bunlong Lay , Rostislav Makarov , Timo Gerkmann

Every day, many people die under violent circumstances, whether from crimes, war, migration, or climate disasters. Medico-legal and law enforcement institutions document many portraits of the deceased for evidence, but cannot immediately…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Jules Ripoll , David Bertoin , Alasdair Newson , Charles Dossal , Jose Pablo Baraybar

In the beginning stage, face verification is done using easy method of geometric algorithm models, but the verification route has now developed into a scientific progress of complicated geometric representation and identical procedure. In…

Computer Vision and Pattern Recognition · Computer Science 2014-03-24 V. Karthikeyan , K. Vijayalakshmi , P. Jeyakumar

Subject-driven image generation aims to synthesize novel depictions of a specific subject across diverse contexts while preserving its core identity features. Achieving both strong identity consistency and high prompt diversity presents a…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Aditi Singhania , Arushi Jain , Krutik Malani , Riddhi Dhawan , Souymodip Chakraborty , Vineet Batra , Ankit Phogat

Face recognition approaches that are based on deep convolutional neural networks (CNN) have been dominating the field. The performance improvements they have provided in the so called in-the-wild datasets are significant, however, their…

Computer Vision and Pattern Recognition · Computer Science 2016-11-28 Samil Karahan , Merve Kilinc Yildirim , Kadir Kirtac , Ferhat Sukru Rende , Gultekin Butun , Hazim Kemal Ekenel

Recent advancements in image restoration increasingly employ conditional latent diffusion models (CLDMs). While these models have demonstrated notable performance improvements in recent years, this work questions their suitability for IR…

Computer Vision and Pattern Recognition · Computer Science 2024-12-16 Yunchen Yuan , Junyuan Xiao , Xinjie Li

The rise of deepfake images, especially of well-known personalities, poses a serious threat to the dissemination of authentic information. To tackle this, we present a thorough investigation into how deepfakes are produced and how they can…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Haixu Song , Shiyu Huang , Yinpeng Dong , Wei-Wei Tu

Blind face restoration (BFR) is fundamentally challenged by the extensive range of degradation types and degrees that impact model generalization. Recent advancements in diffusion models have made considerable progress in this field.…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Xinmin Qiu , Bonan Li , Zicheng Zhang , Congying Han , Tiande Guo

The availability of large-scale authentic face databases has been crucial to the significant advances made in face recognition research over the past decade. However, legal and ethical concerns led to the recent retraction of many of these…

Computer Vision and Pattern Recognition · Computer Science 2023-08-11 Fadi Boutros , Jonas Henry Grebe , Arjan Kuijper , Naser Damer

Face morphing attacks seek to deceive a Face Recognition (FR) system by presenting a morphed image consisting of the biometric qualities from two different identities with the aim of triggering a false acceptance with one of the two…

Computer Vision and Pattern Recognition · Computer Science 2024-04-11 Zander W. Blasingame , Chen Liu

Latent diffusion models (LDM) have revolutionized text-to-image generation, leading to the proliferation of various advanced models and diverse downstream applications. However, despite these significant advancements, current diffusion…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Jiacheng Zhang , Jie Wu , Yuxi Ren , Xin Xia , Huafeng Kuang , Pan Xie , Jiashi Li , Xuefeng Xiao , Weilin Huang , Shilei Wen , Lean Fu , Guanbin Li

Preserving face identity is a critical yet persistent challenge in diffusion-based image restoration. While reference faces offer a path forward, existing reference-based methods often fail to fully exploit their potential. This paper…

Computer Vision and Pattern Recognition · Computer Science 2025-05-29 Mo Zhou , Keren Ye , Viraj Shah , Kangfu Mei , Mauricio Delbracio , Peyman Milanfar , Vishal M. Patel , Hossein Talebi

The detection of malicious deepfakes is a constantly evolving problem that requires continuous monitoring of detectors to ensure they can detect image manipulations generated by the latest emerging models. In this paper, we investigate the…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Marija Ivanovska , Vitomir Štruc