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Image Quality Assessment (IQA) models are employed in many practical image and video processing pipelines to reduce storage, minimize transmission costs, and improve the Quality of Experience (QoE) of millions of viewers. These models are…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Krishna Srikar Durbha , Asvin Kumar Venkataramanan , Rajesh Sureddi , Alan C. Bovik

Change detection (CD) in remote sensing images has been an ever-expanding area of research. To date, although many methods have been proposed using various techniques, accurately identifying changes is still a great challenge, especially in…

Computer Vision and Pattern Recognition · Computer Science 2021-02-17 Junzheng Wu , Biao Li , Yao Qin , Weiping Ni , Han Zhang , Yuli Sun

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

Image quality assessment (IQA) is an important research topic for understanding and improving visual experience. The current state-of-the-art IQA methods are based on convolutional neural networks (CNNs). The performance of CNN-based models…

Computer Vision and Pattern Recognition · Computer Science 2021-08-16 Junjie Ke , Qifei Wang , Yilin Wang , Peyman Milanfar , Feng Yang

Free-energy-guided self-repair mechanisms have shown promising results in image quality assessment (IQA), but remain under-explored in video quality assessment (VQA), where temporal dynamics and model constraints pose unique challenges.…

Computer Vision and Pattern Recognition · Computer Science 2025-06-16 Zhaoyang Wang , Wen Lu , Jie Li , Lihuo He , Maoguo Gong , Xinbo Gao

State-of-the-art 2D image compression schemes rely on the power of convolutional neural networks (CNNs). Although CNNs offer promising perspectives for 2D image compression, extending such models to omnidirectional images is not…

Image and Video Processing · Electrical Eng. & Systems 2022-09-21 Navid Mahmoudian Bidgoli , Roberto G. de A. Azevedo , Thomas Maugey , Aline Roumy , Pascal Frossard

Generally, humans are more skilled at perceiving differences between high-quality (HQ) and low-quality (LQ) images than directly judging the quality of a single LQ image. This situation also applies to image quality assessment (IQA).…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Guanghao Yin , Wei Wang , Zehuan Yuan , Chuchu Han , Wei Ji , Shouqian Sun , Changhu Wang

Video quality assessment (VQA) seeks to predict the perceptual quality of a video in alignment with human visual perception, serving as a fundamental tool for quantifying quality degradation across video processing workflows. The dominant…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Linhan Cao , Wei Sun , Xiangyang Zhu , Kaiwei Zhang , Jun Jia , Yicong Peng , Dandan Zhu , Guangtao Zhai , Xiongkuo Min

Fact-based Visual Question Answering (FVQA) requires external knowledge beyond visible content to answer questions about an image, which is challenging but indispensable to achieve general VQA. One limitation of existing FVQA solutions is…

Computer Vision and Pattern Recognition · Computer Science 2020-11-05 Zihao Zhu , Jing Yu , Yujing Wang , Yajing Sun , Yue Hu , Qi Wu

No-Reference Image Quality Assessment (NR-IQA) aims at estimating image quality in accordance with subjective human perception. However, most methods focus on exploring increasingly complex networks to improve the final…

Computer Vision and Pattern Recognition · Computer Science 2024-09-12 Ronghua Liao , Chen Hui , Lang Yuan , Haiqi Zhu , Feng Jiang

With the development of eXtended Reality (XR), photo capturing and display technology based on head-mounted displays (HMDs) have experienced significant advancements and gained considerable attention. Egocentric spatial images and videos…

Computer Vision and Pattern Recognition · Computer Science 2025-02-24 Xilei Zhu , Liu Yang , Huiyu Duan , Xiongkuo Min , Guangtao Zhai , Patrick Le Callet

In practical media distribution systems, visual content usually undergoes multiple stages of quality degradation along the delivery chain, but the pristine source content is rarely available at most quality monitoring points along the chain…

Image and Video Processing · Electrical Eng. & Systems 2021-10-29 Shahrukh Athar , Zhou Wang

In this work, we introduce Gradient Siamese Network (GSN) for image quality assessment. The proposed method is skilled in capturing the gradient features between distorted images and reference images in full-reference image quality…

Image and Video Processing · Electrical Eng. & Systems 2022-08-09 Heng Cong , Lingzhi Fu , Rongyu Zhang , Yusheng Zhang , Hao Wang , Jiarong He , Jin Gao

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

Existing blind image quality assessment (BIQA) methods focus on designing complicated networks based on convolutional neural networks (CNNs) or transformer. In addition, some BIQA methods enhance the performance of the model in a two-stage…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Qunyue Huang , Bin Fang

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

Graph Convolutional Networks (GCN) have been recently employed as core component in the construction of recommender system algorithms, interpreting user-item interactions as the edges of a bipartite graph. However, in the absence of side…

Information Retrieval · Computer Science 2023-03-29 Edoardo D'Amico , Khalil Muhammad , Elias Tragos , Barry Smyth , Neil Hurley , Aonghus Lawlor

Omnidirectional images (ODIs), with their 360{\deg} field of view, provide unparalleled spatial awareness for immersive applications like augmented reality and embodied AI. However, the capability of existing multi-modal large language…

Computer Vision and Pattern Recognition · Computer Science 2025-05-21 Xinshen Zhang , Zhen Ye , Xu Zheng

Large machine learning models based on Convolutional Neural Networks (CNNs) with rapidly increasing number of parameters, trained with massive amounts of data, are being deployed in a wide array of computer vision tasks from self-driving…

Computer Vision and Pattern Recognition · Computer Science 2021-10-14 Rishab Parthasarathy , Rohan Bhowmik

Traditional image quality assessment (IQA) methods rely on mean opinion scores (MOS), which are resource-intensive to collect and fail to provide interpretable, localized feedback on specific image distortions. We overcome these limitations…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Fadeel Sher Khan , Long N. Le , Abhinau K. Venkataramanan , Seok-Jun Lee , Hamid R. Sheikh