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Generic Face Image Quality Assessment (GFIQA) evaluates the perceptual quality of facial images, which is crucial in improving image restoration algorithms and selecting high-quality face images for downstream tasks. We present a novel…

Computer Vision and Pattern Recognition · Computer Science 2024-06-17 Wei-Ting Chen , Gurunandan Krishnan , Qiang Gao , Sy-Yen Kuo , Sizhuo Ma , Jian Wang

Recognition of low-quality face images remains a challenge due to invisible or deformation in partial facial regions. For low-quality images dominated by missing partial facial regions, local region similarity contributes more to face…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Wang Yu , Wei Wei

The goal of full-reference image quality assessment (FR-IQA) is to predict the quality of an image as perceived by human observers with using its pristine, reference counterpart. In this study, we explore a novel, combined approach which…

Computer Vision and Pattern Recognition · Computer Science 2020-12-04 Domonkos Varga

Existing face restoration models have relied on general assessment metrics that do not consider the characteristics of facial regions. Recent works have therefore assessed their methods using human studies, which is not scalable and…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Byungho Jo , Donghyeon Cho , In Kyu Park , Sungeun Hong

Measuring the accuracy of face recognition (FR) systems is essential for improving performance and ensuring responsible use. Accuracy is typically estimated using large annotated datasets, which are costly and difficult to obtain. We…

Computer Vision and Pattern Recognition · Computer Science 2025-02-24 Manuel Knott , Ignacio Serna , Ethan Mann , Pietro Perona

Face quality assessment aims at estimating the utility of a face image for the purpose of recognition. It is a key factor to achieve high face recognition performances. Currently, the high performance of these face recognition systems come…

Computer Vision and Pattern Recognition · Computer Science 2020-07-13 Philipp Terhörst , Jan Niklas Kolf , Naser Damer , Florian Kirchbuchner , Arjan Kuijper

Image quality assessment(IQA) is of increasing importance for image-based applications. Its purpose is to establish a model that can replace humans for accurately evaluating image quality. According to whether the reference image is…

Image and Video Processing · Electrical Eng. & Systems 2022-01-12 Lanjiang Wang

Face Image Quality Assessment (FIQA) is essential for reliable face recognition systems. Current approaches primarily exploit only final-layer representations, while training-free methods require multiple forward passes or backpropagation.…

Computer Vision and Pattern Recognition · Computer Science 2026-01-12 Guray Ozgur , Eduarda Caldeira , Tahar Chettaoui , Jan Niklas Kolf , Marco Huber , Naser Damer , Fadi Boutros

Quality scores provide a measure to evaluate the utility of biometric samples for biometric recognition. Biometric recognition systems require high-quality samples to achieve optimal performance. This paper focuses on face images and the…

Computer Vision and Pattern Recognition · Computer Science 2021-10-25 Biying Fu , Cong Chen , Olaf Henniger , Naser Damer

The retinal fundus images are utilized extensively in the diagnosis, and their quality can directly affect the diagnosis results. However, due to the insufficient dataset and algorithm application, current fundus image quality assessment…

Image and Video Processing · Electrical Eng. & Systems 2024-11-20 Zheng Gong , Zhuo Deng , Run Gan , Zhiyuan Niu , Lu Chen , Canfeng Huang , Jia Liang , Weihao Gao , Fang Li , Shaochong Zhang , Lan Ma

With the development of multimedia technology, Augmented Reality (AR) has become a promising next-generation mobile platform. The primary value of AR is to promote the fusion of digital contents and real-world environments, however, studies…

Computer Vision and Pattern Recognition · Computer Science 2022-12-07 Huiyu Duan , Xiongkuo Min , Yucheng Zhu , Guangtao Zhai , Xiaokang Yang , Patrick Le Callet

Face Image Quality Assessment (FIQA) evaluates the utility of a face image for automated face recognition (FR) systems. In this work, we propose PreFIQs, an unsupervised and training-free FIQA framework grounded in the Pruning Identified…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Jan Niklas Kolf , Guray Ozgur , Andrea Atzori , Žiga Babnik , Vitomir Štruc , Naser Damer , Fadi Boutros

In this dissertation, we present a generative model to capture the relation between facial image quality features (like pose, illumination direction, etc) and face recognition performance. Such a model can be used to predict the performance…

Computer Vision and Pattern Recognition · Computer Science 2015-10-27 Abhishek Dutta

Face recognition systems have to deal with large variabilities (such as different poses, illuminations, and expressions) that might lead to incorrect matching decisions. These variabilities can be measured in terms of face image quality…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Philipp Terhörst , Malte Ihlefeld , Marco Huber , Naser Damer , Florian Kirchbuchner , Kiran Raja , Arjan Kuijper

Face Recognition (FR) is used in a variety of application domains, from entertainment and banking to security and surveillance. Such applications rely on the FR model to be robust and perform well in a variety of settings. To achieve this,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-30 Žiga Babnik , Fadi Boutros , Naser Damer , Deepak Kumar Jain , Peter Peer , Vitomir Štruc

Face detection is a well-explored problem. Many challenges on face detectors like extreme pose, illumination, low resolution and small scales are studied in the previous work. However, previous proposed models are mostly trained and tested…

Computer Vision and Pattern Recognition · Computer Science 2018-04-23 Yuqian Zhou , Ding Liu , Thomas Huang

Face image quality assessment (FIQA) algorithms are being integrated into online identity management applications. These applications allow users to upload a face image as part of their document issuance process, where the image is then run…

Computer Vision and Pattern Recognition · Computer Science 2025-01-15 Wassim Kabbani , Kiran Raja , Raghavendra Ramachandra , Christoph Busch

Face recognition in unconstrained environments such as surveillance, video, and web imagery must contend with extreme variation in pose, blur, illumination, and occlusion, where conventional visual quality metrics fail to predict whether…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Allen Tu , Kartik Narayan , Joshua Gleason , Jennifer Xu , Matthew Meyn , Tom Goldstein , Vishal M. Patel

In this paper we develop FaceQgen, a No-Reference Quality Assessment approach for face images based on a Generative Adversarial Network that generates a scalar quality measure related with the face recognition accuracy. FaceQgen does not…

Computer Vision and Pattern Recognition · Computer Science 2022-01-04 Javier Hernandez-Ortega , Julian Fierrez , Ignacio Serna , Aythami Morales

Face Image Quality Assessment (FIQA) is a crucial control step in biometric pipelines. It ensures only reliable samples are processed to maintain system accuracy. State-of-the-art FIQA methods achieve high utility but typically operate as…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Erdi Sarıtaş , Eren Onaran , Vitomir Štruc , Hazım Kemal Ekenel