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The quality of a face crop in an image is decided by many factors such as camera resolution, distance, and illumination condition. This makes the discrimination of face images with different qualities a challenging problem in realistic…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Youzhe Song , Feng Wang

The blooming of social media and face recognition (FR) systems has increased people's concern about privacy and security. A new type of adversarial privacy cloak (class-universal) can be applied to all the images of regular users, to…

Computer Vision and Pattern Recognition · Computer Science 2024-01-04 Xuannan Liu , Yaoyao Zhong , Weihong Deng , Hongzhi Shi , Xingchen Cui , Yunfeng Yin , Dongchao Wen

Generative models for image restoration, enhancement, and generation have significantly improved the quality of the generated images. Surprisingly, these models produce more pleasant images to the human eye than other methods, yet, they may…

Image and Video Processing · Electrical Eng. & Systems 2022-04-28 Marcos V. Conde , Maxime Burchi , Radu Timofte

Image Quality Assessment (IQA) is a fundamental task in computer vision that has witnessed remarkable progress with deep neural networks. Inspired by the characteristics of the human visual system, existing methods typically use a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Chaofeng Chen , Jiadi Mo , Jingwen Hou , Haoning Wu , Liang Liao , Wenxiu Sun , Qiong Yan , Weisi Lin

In this paper, we present a novel method of no-reference image quality assessment (NR-IQA), which is to predict the perceptual quality score of a given image without using any reference image. The proposed method harnesses three functions…

Computer Vision and Pattern Recognition · Computer Science 2017-05-30 Diqi Chen , Yizhou Wang , Tianfu Wu , Wen Gao

We propose Intrinsic Quality (IQ), a validation-free metric designed to estimate the inherent potential of face recognition (FR) datasets to produce high-performance models without the need for full-scale training. IQ integrates two…

Computer Vision and Pattern Recognition · Computer Science 2026-05-29 Zhichao Chen , Yongle Zhao , Kaicheng Yang , Meng Yang , Yin Xie , Ziyong Feng

Most fair machine learning methods either highly rely on the sensitive information of the training samples or require a large modification on the target models, which hinders their practical application. To address this issue, we propose a…

Machine Learning · Computer Science 2023-12-27 Haonan Wang , Ziwei Wu , Jingrui He

It is well-known that there is no universal metric for image quality evaluation. In this case, distortion-specific metrics can be more reliable. The artifact imposed by image compression can be considered as a combination of various…

Image and Video Processing · Electrical Eng. & Systems 2024-02-05 S. Farhad Hosseini-Benvidi , Hossein Motamednia , Azadeh Mansouri , Mohammadreza Raei , Ahmad Mahmoudi-Aznaveh

The availability of large-scale face datasets has been key in the progress of face recognition. However, due to licensing issues or copyright infringement, some datasets are not available anymore (e.g. MS-Celeb-1M). Recent advances in…

Computer Vision and Pattern Recognition · Computer Science 2021-10-04 Laurent Colbois , Tiago de Freitas Pereira , Sébastien Marcel

Human fingerprints are detailed and nearly unique markers of human identity. Such a unique and stable fingerprint is also left on each acquired image. It can reveal how an image was degraded during the image acquisition procedure and thus…

Image and Video Processing · Electrical Eng. & Systems 2020-09-17 Weihao Xia , Yujiu Yang , Jing-Hao Xue , Jing Xiao

Objective image quality assessment (IQA) is imperative in the current multimedia-intensive world, in order to assess the visual quality of an image at close to a human level of ability. Many~parameters such as color intensity, structure,…

Computer Vision and Pattern Recognition · Computer Science 2019-02-27 Md Abu Layek , Sanjida Afroz , TaeChoong Chung , Eui-Nam Huh

Face restoration (FR) is a specialized field within image restoration that aims to recover low-quality (LQ) face images into high-quality (HQ) face images. Recent advances in deep learning technology have led to significant progress in FR…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Wenjie Li , Mei Wang , Kai Zhang , Juncheng Li , Xiaoming Li , Yuhang Zhang , Guangwei Gao , Weihong Deng , Chia-Wen Lin

Numerous studies have shown that existing Face Recognition Systems (FRS), including commercial ones, often exhibit biases toward certain ethnicities due to under-represented data. In this work, we explore ethnicity alteration and skin tone…

Computer Vision and Pattern Recognition · Computer Science 2024-05-08 Praveen Kumar Chandaliya , Kiran Raja , Raghavendra Ramachandra , Zahid Akhtar , Christoph Busch

The rapid advancement of AI-driven visual generation technologies has catalyzed significant breakthroughs in image manipulation, particularly in achieving photorealistic localized editing effects on natural scene images (NSIs). Despite…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Jiaying Qian , Ziheng Jia , Zicheng Zhang , Zeyu Zhang , Guangtao Zhai , Xiongkuo Min

Recent advances in reasoning-induced image quality assessment (IQA) have demonstrated the power of reinforcement learning to rank (RL2R) for training vision-language models (VLMs) to assess perceptual quality. However, existing approaches…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Xiangyong Chen , Xiaochuan Lin , Haoran Liu , Xuan Li , Yichen Su , Xiangwei Guo

Due to the existence of quality degradations introduced in various stages of visual signal acquisition, compression, transmission and display, image quality assessment (IQA) plays a vital role in image-based applications. According to…

Image and Video Processing · Electrical Eng. & Systems 2022-04-14 Dongxu Wang

Retinal image quality assessment (RIQA) supports computer-aided diagnosis of eye diseases. However, most tools classify only overall image quality, without indicating acquisition defects to guide recapture. This gap is mainly due to the…

Retrieving relevant images from a catalog based on a query image together with a modifying caption is a challenging multimodal task that can particularly benefit domains like apparel shopping, where fine details and subtle variations may be…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Eric Dodds , Jack Culpepper , Gaurav Srivastava

Aiming to enhance Face Recognition (FR) on Low-Quality (LQ) inputs, recent studies suggest incorporating synthetic LQ samples into training. Although promising, the quality factors that are considered in these works are general rather than…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Mohammad Saeed Ebrahimi Saadabadi , Sahar Rahimi Malakshan , Ali Dabouei , Nasser M. Nasrabadi

Image tokenizers play a critical role in shaping the performance of subsequent generative models. Since the introduction of VQ-GAN, discrete image tokenization has undergone remarkable advancements. Improvements in architecture,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Xiang Li , Kai Qiu , Hao Chen , Jason Kuen , Jiuxiang Gu , Jindong Wang , Zhe Lin , Bhiksha Raj