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The current state-of-the-art No-Reference Image Quality Assessment (NR-IQA) methods typically rely on feature extraction from upstream semantic backbone networks, assuming that all extracted features are relevant. However, we make a key…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Xudong Li , Timin Gao , Runze Hu , Yan Zhang , Shengchuan Zhang , Xiawu Zheng , Jingyuan Zheng , Yunhang Shen , Ke Li , Yutao Liu , Pingyang Dai , Rongrong Ji

Perceptual audio quality measurement systems algorithmically analyze the output of audio processing systems to estimate possible perceived quality degradation using perceptual models of human audition. In this manner, they save the time and…

Audio and Speech Processing · Electrical Eng. & Systems 2023-07-14 Pablo M. Delgado , Jürgen Herre

Face recognition has made significant progress in recent years due to deep convolutional neural networks (CNN). In many face recognition (FR) scenarios, face images are acquired from a sequence with huge intra-variations. These…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Baoyun Peng , Min Liu , Zhaoning Zhang , Kai Xu , Dongsheng Li

Existing deep learning-based full-reference IQA (FR-IQA) models usually predict the image quality in a deterministic way by explicitly comparing the features, gauging how severely distorted an image is by how far the corresponding feature…

Image and Video Processing · Electrical Eng. & Systems 2022-09-21 Xingran Liao , Baoliang Chen , Hanwei Zhu , Shiqi Wang , Mingliang Zhou , Sam Kwong

Masked Image Modeling (MIM) is a self-supervised learning technique that involves masking portions of an image, such as pixels, patches, or latent representations, and training models to predict the missing information using the visible…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Shabnam Choudhury , Akhil Vasim , Michael Schmitt , Biplab Banerjee

One major problem of objective Image Quality Assessment (IQA) methods is the lack of linearity of their quality estimates with respect to scores expressed by human subjects. For this reason, usually IQA metrics undergo a calibration process…

Computer Vision and Pattern Recognition · Computer Science 2022-05-25 Elio D. Di Claudio , Paolo Giannitrapani , Giovanni Jacovitti

Current top-performing blind perceptual image quality prediction models are generally trained on legacy databases of human quality opinion scores on synthetically distorted images. Therefore they learn image features that effectively…

Computer Vision and Pattern Recognition · Computer Science 2016-09-16 Deepti Ghadiyaram , Alan C. Bovik

Modern face recognition (FR) models excel in constrained scenarios, but often suffer from decreased performance when deployed in unconstrained (real-world) environments due to uncertainties surrounding the quality of the captured facial…

Computer Vision and Pattern Recognition · Computer Science 2023-05-11 Žiga Babnik , Peter Peer , Vitomir Štruc

We introduce a novel cross-reference image quality assessment method that effectively fills the gap in the image assessment landscape, complementing the array of established evaluation schemes -- ranging from full-reference metrics like…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Zirui Wang , Wenjing Bian , Victor Adrian Prisacariu

Image metrics predict the perceived per-pixel difference between a reference image and its degraded (e. g., re-rendered) version. In several important applications, the reference image is not available and image metrics cannot be applied.…

Image Quality Assessment (IQA) predicts perceptual quality scores consistent with human judgments. Recent RL-based IQA methods built on MLLMs focus on generating visual quality descriptions and scores, ignoring two key reliability…

Computer Vision and Pattern Recognition · Computer Science 2026-02-17 Wulin Xie , Rui Dai , Ruidong Ding , Kaikui Liu , Xiangxiang Chu , Xinwen Hou , Jie Wen

Despite the impressive performance of large multimodal models (LMMs) in high-level visual tasks, their capacity for image quality assessment (IQA) remains limited. One main reason is that LMMs are primarily trained for high-level tasks…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Baoliang Chen , Siyi Pan , Dongxu Wu , Liang Xie , Xiangjie Sui , Lingyu Zhu , Hanwei Zhu

Real world image super-resolution (Real-ISR) often leverages the powerful generative priors of text-to-image diffusion models by regularizing the output to lie on their learned manifold. However, existing methods often overlook the…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Junoh Kang , Donghun Ryou , Bohyung Han

Image quality assessment (IQA) is indispensable in clinical practice to ensure high standards, as well as in the development stage of machine learning algorithms that operate on medical images. The popular full reference (FR) IQA measures…

Image quality assessment (IQA) algorithms aim to reproduce the human's perception of the image quality. The growing popularity of image enhancement, generation, and recovery models instigated the development of many methods to assess their…

Image and Video Processing · Electrical Eng. & Systems 2023-02-17 Segrey Kastryulin , Jamil Zakirov , Nicola Pezzotti , Dmitry V. Dylov

Blind Face Restoration (BFR) addresses the challenge of reconstructing degraded low-quality (LQ) facial images into high-quality (HQ) outputs. Conventional approaches predominantly rely on learning feature representations from ground-truth…

Computer Vision and Pattern Recognition · Computer Science 2025-03-13 Peng Hu , Chunming He , Lei Xu , Jingduo Tian , Sina Farsiu , Yulun Zhang , Pei Liu , Xiu Li

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

Image Quality Assessment (IQA) is essential in various Computer Vision tasks such as image deblurring and super-resolution. However, most IQA methods require reference images, which are not always available. While there are some…

Image and Video Processing · Electrical Eng. & Systems 2024-05-06 Han Cui , Alfredo De Goyeneche , Efrat Shimron , Boyuan Ma , Michael Lustig

Despite the fact that DeepFake forgery detection algorithms have achieved impressive performance on known manipulations, they often face disastrous performance degradation when generalized to an unseen manipulation. Some recent works show…

Computer Vision and Pattern Recognition · Computer Science 2023-04-03 Chuer Yu , Xuhong Zhang , Yuxuan Duan , Senbo Yan , Zonghui Wang , Yang Xiang , Shouling Ji , Wenzhi Chen

Recent advances in Image Quality Assessment (IQA) have leveraged Multi-modal Large Language Models (MLLMs) to generate descriptive explanations. However, despite their strong visual perception modules, these models often fail to reliably…

Computer Vision and Pattern Recognition · Computer Science 2025-12-11 Yuan Li , Zitang Sun , Yen-Ju Chen , Shin'ya Nishida