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Optical microscopy is one of the most widely used techniques in research studies for life sciences and biomedicine. These applications require reliable experimental pipelines to extract valuable knowledge from the measured samples and must…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Elena Corbetta , Thomas Bocklitz

Microscopy is routinely used to image biological structures of interest. Due to imaging constraints, acquired images, also called as micrographs, are typically low-SNR and contain noise. Over the last few years, regression-based tasks like…

Image and Video Processing · Electrical Eng. & Systems 2024-10-16 Ashesh Ashesh , Joran Deschamps , Florian Jug

Applications of perceptual image quality assessment (IQA) in image and video processing, such as image acquisition, image compression, image restoration and multimedia communication, have led to the development of many IQA metrics. In this…

Computer Vision and Pattern Recognition · Computer Science 2017-04-20 Hossein Ziaei Nafchi , Atena Shahkolaei , Rachid Hedjam , Mohamed Cheriet

We introduce CatSIM, a new similarity metric for binary and multinary two- and three-dimensional images and volumes. CatSIM uses a structural similarity image quality paradigm and is robust to small perturbations in location so that…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Geoffrey Z. Thompson , Ranjan Maitra

Image quality plays an important role in the performance of deep neural networks (DNNs) that have been widely shown to exhibit sensitivity to changes in imaging conditions. Conventional image quality assessment (IQA) seeks to measure and…

Computer Vision and Pattern Recognition · Computer Science 2025-08-06 Nathan Drenkow , Mathias Unberath

As an affordable and convenient eye scan, fundus photography holds the potential for preventing vision impairment, especially in resource-limited regions. However, fundus image degradation is common under intricate imaging environments,…

Image and Video Processing · Electrical Eng. & Systems 2025-01-22 Heng Li , Haojin Li , Mingyang Ou , Xiangyang Yu , Xiaoqing Zhang , Ke Niu , Huazhu Fu , Jiang Liu

Several existing and successful full reference image quality assessment (IQA) models use linear color transformation and downsampling before measuring similarity or quality of images. This paper indicates to the right order of these two…

Multimedia · Computer Science 2016-06-21 Hossein Ziaei Nafchi , Mohamed Cheriet

Image quality assessment (IQA) focuses on the perceptual visual quality of images, playing a crucial role in downstream tasks such as image reconstruction, compression, and generation. The rapid advancement of multi-modal large language…

Computer Vision and Pattern Recognition · Computer Science 2025-05-26 Weiqi Li , Xuanyu Zhang , Shijie Zhao , Yabin Zhang , Junlin Li , Li Zhang , Jian Zhang

Perceptual image quality assessment (IQA) is the task of predicting the visual quality of an image as perceived by a human observer. Current state-of-the-art techniques are based on deep representations trained in discriminative manner.…

Image and Video Processing · Electrical Eng. & Systems 2024-04-30 Simon Raviv , Gal Chechik

Image Quality Assessment (IQA) is a challenging task that requires training on massive datasets to achieve accurate predictions. However, due to the lack of IQA data, deep learning-based IQA methods typically rely on pre-trained networks…

Computer Vision and Pattern Recognition · Computer Science 2023-07-11 Xinpeng Li , Ting Jiang , Haoqiang Fan , Shuaicheng Liu

Nowadays digital image compression and decompression techniques are very much important. So our aim is to calculate the quality of face and other regions of the compressed image with respect to the original image. Image segmentation is…

Computer Vision and Pattern Recognition · Computer Science 2014-02-07 Abhishek Bhattacharya , Tanusree Chatterjee

No-Reference Image Quality Assessment (NR-IQA) aims to estimate perceptual quality without access to a reference image of pristine quality. Learning an NR-IQA model faces a fundamental bottleneck: its need for a large number of costly human…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Mahdi Naseri , Zhou Wang

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

Online social networking techniques and large-scale multimedia systems are developing rapidly, which not only has brought great convenience to our daily life, but generated, collected, and stored large-scale multimedia data. This trend has…

Multimedia · Computer Science 2018-09-12 Chengyuan Zhang , Yunwu Lin , Lei Zhu , Zuping Zhang , Xinpan Yuan , Fang Huang

Deep networks have demonstrated promising results in the field of Image Quality Assessment (IQA). However, there has been limited research on understanding how deep models in IQA work. This study introduces a novel positional masked…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Junyong You , Yuan Lin , Jari Korhonen

Image compression has raised widespread interest recently due to its significant importance for multimedia storage and transmission. Meanwhile, a reliable image quality assessment (IQA) for compressed images can not only help to verify the…

Computer Vision and Pattern Recognition · Computer Science 2022-05-10 Jianzhao Liu , Xin Li , Yanding Peng , Tao Yu , Zhibo Chen

Positron Emission Tomography / Computed Tomography (PET/CT) plays a critical role in medical imaging, combining functional and anatomical information to aid in accurate diagnosis. However, image quality degradation due to noise, compression…

Image and Video Processing · Electrical Eng. & Systems 2025-06-26 Siqiao Li , Chen Hui , Wei Zhang , Rui Liang , Chenyue Song , Feng Jiang , Haiqi Zhu , Zhixuan Li , Hong Huang , Xiang Li

Several metrics exist to quantify the similarity between images, but they are inefficient when it comes to measure the similarity of highly distorted images. In this work, we propose to empirically investigate perceptual metrics based on…

Computer Vision and Pattern Recognition · Computer Science 2022-02-18 Rémi Kazmierczak , Gianni Franchi , Nacim Belkhir , Antoine Manzanera , David Filliat

Image quality assessment (IQA) is crucial in the evaluation stage of novel algorithms operating on images, including traditional and machine learning based methods. Due to the lack of available quality-rated medical images, most commonly…

Image and Video Processing · Electrical Eng. & Systems 2026-05-01 Anna Breger , Janek Gröhl , Clemens Karner , Thomas R Else , Ian Selby , Tom Rix , Lara-Sophie Witt , Merle Duchêne , Jonathan Weir-McCall , Carola-Bibiane Schönlieb

Year after year, the demand for ever-better smartphone photos continues to grow, in particular in the domain of portrait photography. Manufacturers thus use perceptual quality criteria throughout the development of smartphone cameras. This…

Computer Vision and Pattern Recognition · Computer Science 2023-04-13 Nicolas Chahine , Ana-Stefania Calarasanu , Davide Garcia-Civiero , Theo Cayla , Sira Ferradans , Jean Ponce