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Medical image quality assessment (Med-IQA) is a prerequisite for clinical AI deployment, yet multimodal large language models (MLLMs) still fall substantially short of human experts, particularly when required to provide descriptive…

计算机视觉与模式识别 · 计算机科学 2026-03-23 Jiyao Liu , Junzhi Ning , Wanying Qu , Lihao Liu , Chenglong Ma , Junjun He , Ningsheng Xu

In this paper we investigate into the problem of image quality assessment (IQA) and enhancement via machine learning. This issue has long attracted a wide range of attention in computational intelligence and image processing communities,…

计算机视觉与模式识别 · 计算机科学 2019-04-19 Ke Gu , Dacheng Tao , Junfei Qiao , Weisi Lin

Teledermatology has become a widely accepted communication method in daily clinical practice, enabling remote care while showing strong agreement with in-person visits. Poor image quality remains an unsolved problem in teledermatology and…

Automatic perception of image quality is a challenging problem that impacts billions of Internet and social media users daily. To advance research in this field, we propose a no-reference image quality assessment (NR-IQA) method termed…

计算机视觉与模式识别 · 计算机科学 2024-05-08 Zhen Zhang

This work proposes a green learning (GL) approach to restore medical images. Without loss of generality, we use low-dose computed tomography (LDCT) images as examples. LDCT images are susceptible to noise and artifacts, where the imaging…

计算机视觉与模式识别 · 计算机科学 2026-02-24 Wei Wang , Yixing Wu , C. -C. Jay Kuo

Reasoning-induced vision-language models (VLMs) advance image quality assessment (IQA) with textual reasoning, yet their scalar scores often lack sensitivity and collapse to a few values, so-called discrete collapse. We introduce ME-IQA, a…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Kanglong Fan , Tianhe Wu , Wen Wen , Jianzhao Liu , Le Yang , Yabin Zhang , Yiting Liao , Junlin Li , Li Zhang

Computed Tomography is one of the efficient and vital modalities of non-destructive techniques (NDT). Various factors influence the CT reconstruction result, including limited projection data, detector electronics optimization, background…

图像与视频处理 · 电气工程与系统科学 2022-05-31 Kajal Kumari , Mayank Goswami

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…

计算机视觉与模式识别 · 计算机科学 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

To reduce the potential radiation risk, low-dose CT has attracted much attention. However, simply lowering the radiation dose will lead to significant deterioration of the image quality. In this paper, we propose a noise reduction method…

医学物理 · 物理学 2016-10-04 Hu Chen , Yi Zhang , Weihua Zhang , Peixi Liao , Ke Li , Jiliu Zhou , Ge Wang

Low-dose computed tomography (LDCT) is an important topic in the field of radiology over the past decades. LDCT reduces ionizing radiation-induced patient health risks but it also results in a low signal-to-noise ratio (SNR) and a potential…

图像与视频处理 · 电气工程与系统科学 2022-10-03 Wenjun Xia , Qing Lyu , Ge Wang

Low-dose CT (LDCT) significantly reduces the radiation dose received by patients, however, dose reduction introduces additional noise and artifacts. Currently, denoising methods based on convolutional neural networks (CNNs) face limitations…

图像与视频处理 · 电气工程与系统科学 2025-07-08 Linxuan Li , Wenjia Wei , Luyao Yang , Wenwen Zhang , Jiashu Dong , Yahua Liu , Hongshi Huang , Wei Zhao

Image quality assessment (IQA) is an active research area in the field of image processing. Most prior works focus on visual quality of natural images captured by cameras. In this paper, we explore visual quality of scanned documents,…

图像与视频处理 · 电气工程与系统科学 2023-07-26 Justin Yang , Peter Bauer , Todd Harris , Changhyung Lee , Hyeon Seok Seo , Jan P Allebach , Fengqing Zhu

The optimization objective of regression-based blind image quality assessment (IQA) models is to minimize the mean prediction error across the training dataset, which can lead to biased parameter estimation due to potential training data…

计算机视觉与模式识别 · 计算机科学 2023-10-24 Xiaoqi Wang , Jian Xiong , Hao Gao , Weisi Lin

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…

图像与视频处理 · 电气工程与系统科学 2023-10-02 Shahabedin Nabavi , Hossein Simchi , Mohsen Ebrahimi Moghaddam , Ahmad Ali Abin , Alejandro F. Frangi

Blind Image Quality Assessment (BIQA) aims to develop methods that estimate the quality scores of images in the absence of a reference image. In this paper, we approach BIQA from a distortion identification perspective, where our primary…

计算机视觉与模式识别 · 计算机科学 2024-09-12 Sepehr Kazemi Ranjbar , Emad Fatemizadeh

Blind image quality assessment (BIQA) remains challenging due to the diversity of distortion and image content variation, which complicate the distortion patterns crossing different scales and aggravate the difficulty of the regression…

图像与视频处理 · 电气工程与系统科学 2023-11-06 Qingyi Pan , Ning Guo , Letu Qingge , Jingyi Zhang , Pei Yang

The contrast of an image can be degraded by the presence of background light and sensor noise. To overcome this degradation, quantum illumination protocols have been theorised (Science 321 (2008), Physics Review Letters 101 (2008)) that…

量子物理 · 物理学 2021-09-21 Thomas Gregory , Paul-Antoine Moreau , Ermes Toninelli , Miles J. Padgett

Diffusion models have significant impact on wide range of generative tasks, especially on image inpainting and restoration. Although the improvements on aiming for decreasing number of function evaluations (NFE), the iterative results are…

图像与视频处理 · 电气工程与系统科学 2024-11-20 Mahmut S. Gokmen , Jie Zhang , Ge Wang , Jin Chen , Cody Bumgardner

In clinical diagnosis, diagnostic images that are obtained from the scanning devices serve as preliminary evidence for further investigation in the process of delivering quality healthcare. However, often the medical image may contain fault…

图像与视频处理 · 电气工程与系统科学 2022-01-19 Karthik K , Sowmya Kamath S

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,…

计算机视觉与模式识别 · 计算机科学 2019-02-27 Md Abu Layek , Sanjida Afroz , TaeChoong Chung , Eui-Nam Huh