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Training a fine-grained image recognition model with limited data presents a significant challenge, as the subtle differences between categories may not be easily discernible amidst distracting noise patterns. One commonly employed strategy…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Avraham Chapman , Haiming Xu , Lingqiao Liu

Full-reference image quality metrics (FR-IQMs) aim to measure the visual differences between a pair of reference and distorted images, with the goal of accurately predicting human judgments. However, existing FR-IQMs, including traditional…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Uğur Çoğalan , Mojtaba Bemana , Hans-Peter Seidel , Karol Myszkowski

Face swapping has become a prominent research area in computer vision and image processing due to rapid technological advancements. The metric of measuring the quality in most face swapping methods relies on several distances between the…

Computer Vision and Pattern Recognition · Computer Science 2024-06-05 Xinghui Zhou , Wenbo Zhou , Tianyi Wei , Shen Chen , Taiping Yao , Shouhong Ding , Weiming Zhang , Nenghai Yu

In this paper, we propose a No-Reference Image Quality Assessment (NRIQA) guided cut-off point selection (CPS) strategy to enhance the performance of a fine-grained classification system. Scores given by existing NRIQA methods on the same…

Computer Vision and Pattern Recognition · Computer Science 2024-05-10 Joseph Smith , Zheming Zuo , Jonathan Stonehouse , Boguslaw Obara

Over the last twenty five years, advances in the collection and analysis of fMRI data have enabled new insights into the brain basis of human health and disease. Individual behavioral variation can now be visualized at a neural level as…

Image and Video Processing · Electrical Eng. & Systems 2019-12-24 Matthew Kollada , Qingzhu Gao , Monika S Mellem , Tathagata Banerjee , William J Martin

Full-reference (FR) image quality assessment (IQA) evaluates the visual quality of a distorted image by measuring its perceptual difference with pristine-quality reference, and has been widely used in low-level vision tasks. Pairwise…

Computer Vision and Pattern Recognition · Computer Science 2022-04-20 Yue Cao , Zhaolin Wan , Dongwei Ren , Zifei Yan , Wangmeng Zuo

Image classification is a crucial task in machine learning with widespread practical applications. The existing classical framework for image classification typically utilizes a global pooling operation at the end of the network to reduce…

Quantum Physics · Physics 2024-03-07 Yixiong Chen

Deep Convolutional Neural Networks (DCNNs) and their variants have been widely used in large scale face recognition(FR) recently. Existing methods have achieved good performance on many FR benchmarks. However, most of them suffer from two…

Computer Vision and Pattern Recognition · Computer Science 2021-06-28 Jing Xu , Tszhang Guo , Yong Xu , Zenglin Xu , Kun Bai

Quality assessment of brain structural MR images is critical for large-scale neuroimaging studies, where motion artifacts can significantly bias clinical estimates. While visual rating remains the gold standard, it is time-consuming and…

Image and Video Processing · Electrical Eng. & Systems 2026-03-20 Prabhjot Kaur , John S. Thornton , Frederik Barkhof , Tarek A. Yousry , Sjoerd B. Vos , Hui Zhang

With technology for digital photography and high resolution displays rapidly evolving and gaining popularity, there is a growing demand for blind image quality assessment (BIQA) models for high resolution images. Unfortunately, the publicly…

Computer Vision and Pattern Recognition · Computer Science 2024-01-30 Huang Huang , Qiang Wan , Jari Korhonen

Deep generative models have shown impressive progress in recent years, making it possible to produce high quality images with a simple text prompt or a reference image. However, state of the art technology does not yet meet the quality…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Xavier Giro-i-Nieto , Nefeli Andreou , Anqi Liang , Manel Baradad , Francesc Moreno-Noguer , Aleix Martinez

Graph neural networks (GNNs) have demonstrated strong performance on a wide variety of tasks due to their ability to model non-uniform structured data. Despite their promise, there exists little research exploring methods to make them more…

Machine Learning · Computer Science 2021-03-16 Shyam A. Tailor , Javier Fernandez-Marques , Nicholas D. Lane

Image quality assessment (IQA) is the key factor for the fast development of image restoration (IR) algorithms. The most recent IR methods based on Generative Adversarial Networks (GANs) have achieved significant improvement in visual…

Image and Video Processing · Electrical Eng. & Systems 2020-09-29 Jinjin Gu , Haoming Cai , Haoyu Chen , Xiaoxing Ye , Jimmy Ren , Chao Dong

Synthetic data has emerged as a promising alternative for training face recognition (FR) models, offering advantages in scalability, privacy compliance, and potential for bias mitigation. However, critical questions remain on whether both…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Pavel Korshunov , Ketan Kotwal , Christophe Ecabert , Vidit Vidit , Amir Mohammadi , Sebastien Marcel

Background and Objectives: Cardiovascular magnetic resonance (CMR) imaging is a powerful modality in functional and anatomical assessment for various cardiovascular diseases. Sufficient image quality is essential to achieve proper diagnosis…

Image and Video Processing · Electrical Eng. & Systems 2023-10-02 Shahabedin Nabavi , Hossein Simchi , Mohsen Ebrahimi Moghaddam , Ahmad Ali Abin , Alejandro F. Frangi

Document image quality assessment (DIQA) is an important and challenging problem in real applications. In order to predict the quality scores of document images, this paper proposes a novel no-reference DIQA method based on character…

Computer Vision and Pattern Recognition · Computer Science 2018-07-12 Hongyu Li , Fan Zhu , Junhua Qiu

"The output of a computerised system can only be as accurate as the information entered into it." This rather trivial statement is the basis behind one of the driving concepts in biometric recognition: biometric quality. Quality is nowadays…

Computer Vision and Pattern Recognition · Computer Science 2021-03-02 Javier Hernandez-Ortega , Javier Galbally , Julian Fierrez , Laurent Beslay

The annotation of blind image quality assessment (BIQA) is labor-intensive and time-consuming, especially for authentic images. Training on synthetic data is expected to be beneficial, but synthetically trained models often suffer from poor…

Computer Vision and Pattern Recognition · Computer Science 2024-05-08 Aobo Li , Jinjian Wu , Yongxu Liu , Leida Li

Most existing face image Super-Resolution (SR) methods assume that the Low-Resolution (LR) images were artificially downsampled from High-Resolution (HR) images with bicubic interpolation. This operation changes the natural image…

Computer Vision and Pattern Recognition · Computer Science 2021-02-08 Andreas Aakerberg , Kamal Nasrollahi , Thomas B. Moeslund

Image quality is important, and can affect overall performance in image processing and computer vision as well as for numerous other reasons. Image quality assessment (IQA) is consequently a vital task in different applications from aerial…

Computer Vision and Pattern Recognition · Computer Science 2023-01-31 Wei Dai , Daniel Berleant