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Large-scale Pre-Training Vision-Language Model such as CLIP has demonstrated outstanding performance in zero-shot classification, e.g. achieving 76.3% top-1 accuracy on ImageNet without seeing any example, which leads to potential benefits…

Computer Vision and Pattern Recognition · Computer Science 2023-12-15 Xuefeng Hu , Ke Zhang , Lu Xia , Albert Chen , Jiajia Luo , Yuyin Sun , Ken Wang , Nan Qiao , Xiao Zeng , Min Sun , Cheng-Hao Kuo , Ram Nevatia

Multimodal pre-trained models, such as CLIP, are popular for zero-shot classification due to their open-vocabulary flexibility and high performance. However, vision-language models, which compute similarity scores between images and class…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Mia Chiquier , Utkarsh Mall , Carl Vondrick

Image Quality Assessment (IQA) is a fundamental task in computer vision that has witnessed remarkable progress with deep neural networks. Inspired by the characteristics of the human visual system, existing methods typically use a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Chaofeng Chen , Jiadi Mo , Jingwen Hou , Haoning Wu , Liang Liao , Wenxiu Sun , Qiong Yan , Weisi Lin

Large Multimodal Models (LMMs) have recently shown remarkable promise in low-level visual perception tasks, particularly in Image Quality Assessment (IQA), demonstrating strong zero-shot capability. However, achieving state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2026-01-14 Kang Fu , Huiyu Duan , Zicheng Zhang , Yucheng Zhu , Jun Zhao , Xiongkuo Min , Jia Wang , Guangtao Zhai

Foundation models, trained on vast amounts of data using self-supervised techniques, have emerged as a promising frontier for advancing artificial intelligence (AI) applications in medicine. This study evaluates three different…

Recently, there have been significant advancements in Image Restoration based on CNN and transformer. However, the inherent characteristics of the Image Restoration task are often overlooked in many works. They, instead, tend to focus on…

Computer Vision and Pattern Recognition · Computer Science 2024-06-25 Dongqi Fan , Ting Yue , Xin Zhao , Renjing Xu , Liang Chang

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

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

We propose a neural network-based framework to optimize the perceptions simulated by the in silico retinal implant model pulse2percept. The overall pipeline consists of a trainable encoder, a pre-trained retinal implant model and a…

Image and Video Processing · Electrical Eng. & Systems 2026-02-23 Yuli Wu , Ivan Karetic , Johannes Stegmaier , Peter Walter , Dorit Merhof

The success of Vision Language Models (VLMs) on various vision-language tasks heavily relies on pre-training with large scale web-crawled datasets. However, the noisy and incomplete nature of web data makes dataset scale crucial for…

Computer Vision and Pattern Recognition · Computer Science 2024-09-25 Yiyi Tao , Zhuoyue Wang , Hang Zhang , Lun Wang

Web-crawled image-text pairs are inherently noisy. Prior studies demonstrate that semantically aligning and enriching textual descriptions of these pairs can significantly enhance model training across various vision-language tasks,…

Computer Vision and Pattern Recognition · Computer Science 2024-06-19 Xianhang Li , Haoqin Tu , Mude Hui , Zeyu Wang , Bingchen Zhao , Junfei Xiao , Sucheng Ren , Jieru Mei , Qing Liu , Huangjie Zheng , Yuyin Zhou , Cihang Xie

Large language models (LLMs), such as ChatGPT, have demonstrated impressive capabilities in various tasks and attracted an increasing interest as a natural language interface across many domains. Recently, large vision-language models…

Computer Vision and Pattern Recognition · Computer Science 2025-09-01 Zhihao Chen , Bin Hu , Chuang Niu , Tao Chen , Yuxin Li , Hongming Shan , Ge Wang

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

Blind 360{\deg}image quality assessment (IQA) aims to predict perceptual quality for panoramic images without a pristine reference. Unlike conventional planar images, 360{\deg}content in immersive environments restricts viewers to a limited…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Yujia Wang , Yuyan Li , Jiuming Liu , Fang-Lue Zhang , Xinhu Zheng , Neil. A Dodgson

Understanding semantic information is an essential step in knowing what is being learned in both full-reference (FR) and no-reference (NR) image quality assessment (IQA) methods. However, especially for many severely distorted images, even…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Pengxiang Xiao , Shuai He , Limin Liu , Anlong Ming

No-Reference Image Quality Assessment (NR-IQA) aims to develop methods to measure image quality in alignment with human perception without the need for a high-quality reference image. In this work, we propose a self-supervised approach…

Computer Vision and Pattern Recognition · Computer Science 2023-11-08 Lorenzo Agnolucci , Leonardo Galteri , Marco Bertini , Alberto Del Bimbo

Large Multimodal Models (LMMs) have recently enabled considerable advances in the realm of image and video quality assessment, but this progress has yet to be fully explored in the domain of 3D assets. We are interested in using these…

Computer Vision and Pattern Recognition · Computer Science 2025-10-10 Shashank Gupta , Gregoire Phillips , Alan C. Bovik

General-purpose foundation models have led to recent breakthroughs in artificial intelligence. In remote sensing, self-supervised learning (SSL) and Masked Image Modeling (MIM) have been adopted to build foundation models. However, these…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Fan Liu , Delong Chen , Zhangqingyun Guan , Xiaocong Zhou , Jiale Zhu , Qiaolin Ye , Liyong Fu , Jun Zhou

Objective image quality assessment deals with the prediction of digital images' perceptual quality. No-reference image quality assessment predicts the quality of a given input image without any knowledge or information about its pristine…

Image and Video Processing · Electrical Eng. & Systems 2020-11-17 Domonkos Varga

The nonlinearity of activation functions used in deep learning models are crucial for the success of predictive models. There are several commonly used simple nonlinear functions, including Rectified Linear Unit (ReLU) and Leaky-ReLU…

Machine Learning · Computer Science 2020-10-16 Nalinda Kulathunga , Nishath Rajiv Ranasinghe , Daniel Vrinceanu , Zackary Kinsman , Lei Huang , Yunjiao Wang