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Related papers: LAN-HDR: Luminance-based Alignment Network for Hig…

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Presenting high-resolution (HR) human appearance is always critical for the human-centric videos. However, current imagery equipment can hardly capture HR details all the time. Existing super-resolution algorithms barely mitigate the…

Computer Vision and Pattern Recognition · Computer Science 2020-05-28 Guanghan Li , Yaping Zhao , Mengqi Ji , Xiaoyun Yuan , Lu Fang

In media industry, the demand of SDR-to-HDRTV up-conversion arises when users possess HDR-WCG (high dynamic range-wide color gamut) TVs while most off-the-shelf footage is still in SDR (standard dynamic range). The research community has…

Multimedia · Computer Science 2023-10-02 Cheng Guo , Leidong Fan , Ziyu Xue , and Xiuhua Jiang

In this paper, we propose LSRNA, a novel framework for higher-resolution (exceeding 1K) image generation using diffusion models by leveraging super-resolution directly in the latent space. Existing diffusion models struggle with scaling…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Jinho Jeong , Sangmin Han , Jinwoo Kim , Seon Joo Kim

Deep Neural Network (DNN)-based image reconstruction, despite many successes, often exhibits uneven fidelity between high and low spatial frequency bands. In this paper we propose the Learning Synthesis by DNN (LS-DNN) approach where two…

Computer Vision and Pattern Recognition · Computer Science 2018-11-21 Mo Deng , Shuai Li , George Barbastathis

Recent Video Large Language Models (Video-LLMs) have demonstrated strong capability in video understanding, yet they still suffer from hallucinations. Existing mitigation methods typically rely on training, input modification, auxiliary…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Zijian Liu , Sihan Cao , Pengcheng Zheng , Kuien Liu , Caiyan Qin , Xiaolin Qin , Jiwei Wei , Chaoning Zhang

Low-light images often suffer from severe noise, detail loss, and color distortion, which hinder downstream multimedia analysis and retrieval tasks. The degradation in low-light images is complex: luminance and chrominance are coupled,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-08 Junhao Yang , Bo Yang , Hongwei Ge , Yanchun Liang , Heow Pueh Lee , Chunguo Wu

Ultra-high-definition (UHD) images often suffer from severe degradations such as blur, haze, rain, or low-light conditions, which pose significant challenges for image restoration due to their high resolution and computational demands. In…

Image and Video Processing · Electrical Eng. & Systems 2025-11-10 S. Zhao , W. Lu , B. Wang , T. Wang , K. Zhang , H. Zhao

While consumer displays increasingly support more than 10 stops of dynamic range, most image assets such as internet photographs and generative AI content remain limited to 8-bit low dynamic range (LDR), constraining their utility across…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Chao Wang , Zhihao Xia , Thomas Leimkuehler , Karol Myszkowski , Xuaner Zhang

Avoiding the introduction of ghosts when synthesising LDR images as high dynamic range (HDR) images is a challenging task. Convolutional neural networks (CNNs) are effective for HDR ghost removal in general, but are challenging to deal with…

Computer Vision and Pattern Recognition · Computer Science 2023-04-24 Fangfang Zhou , Dan Zhang , Zhenming Fu

Retrieval-Augmented Generation (RAG) enhances Large Language Models (LLMs) by integrating external document retrieval to provide domain-specific or up-to-date knowledge. The effectiveness of RAG depends on the relevance of retrieved…

Merging multi-exposure images is a common approach for obtaining high dynamic range (HDR) images, with the primary challenge being the avoidance of ghosting artifacts in dynamic scenes. Recent methods have proposed using deep neural…

Computer Vision and Pattern Recognition · Computer Science 2024-02-29 Zhilu Zhang , Haoyu Wang , Shuai Liu , Xiaotao Wang , Lei Lei , Wangmeng Zuo

Light field (LF) images acquired by hand-held devices usually suffer from low spatial resolution as the limited sampling resources have to be shared with the angular dimension. LF spatial super-resolution (SR) thus becomes an indispensable…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Jing Jin , Junhui Hou , Jie Chen , Sam Kwong

Generative super-resolution (GSR) currently sets the state-of-the-art in terms of perceptual image quality, overcoming the "regression-to-the-mean" blur of prior non-generative models. However, from a human perspective, such models do not…

Computer Vision and Pattern Recognition · Computer Science 2026-01-12 Weiming Ren , Raghav Goyal , Zhiming Hu , Tristan Ty Aumentado-Armstrong , Iqbal Mohomed , Alex Levinshtein

Image super-resolution (SR) methods essentially lead to a loss of some high-frequency (HF) information when predicting high-resolution (HR) images from low-resolution (LR) images without using external references. To address this issue, we…

Computer Vision and Pattern Recognition · Computer Science 2018-06-19 Sifeng Xia , Wenhan Yang , Jiaying Liu , Zongming Guo

Real-world low-resolution (LR) videos have diverse and complex degradations, imposing great challenges on video super-resolution (VSR) algorithms to reproduce their high-resolution (HR) counterparts with high quality. Recently, the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Xi Yang , Chenhang He , Jianqi Ma , Lei Zhang

Most of the current face hallucination methods, whether they are shallow learning-based or deep learning-based, all try to learn a relationship model between Low-Resolution (LR) and High-Resolution (HR) spaces with the help of a training…

Computer Vision and Pattern Recognition · Computer Science 2018-06-29 Junjun Jiang , Yi Yu , Jinhui Hu , Suhua Tang , Jiayi Ma

Large Vision-Language Models (LVLMs) bridge the gap between visual and linguistic modalities, demonstrating strong potential across a variety of domains. However, despite significant progress, LVLMs still suffer from severe hallucination…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Ruiqi Ma , Yu Yan , Chunhong Zhang , Minghao Yin , XinChao Liu , Zhihong Jin , Zheng Hu

High Dynamic Range (HDR) video reconstruction aims to recover fine brightness, color, and details from Low Dynamic Range (LDR) videos. However, existing methods often suffer from color inaccuracies and temporal inconsistencies. To address…

Image and Video Processing · Electrical Eng. & Systems 2026-02-10 Yang Zhang , Zhangkai Ni , Wenhan Yang , Hanli Wang

Acquisition of high dynamic range (HDR) images is thriving due to the increasing use of smart devices and the demand for high-quality output. Extensive research has focused on developing methods for reducing the luminance range in HDR…

Image and Video Processing · Electrical Eng. & Systems 2024-09-25 Xenios Milidonis , Francesco Banterle , Alessandro Artusi

One of the main open challenges in visual odometry (VO) is the robustness to difficult illumination conditions or high dynamic range (HDR) environments. The main difficulties in these situations come from both the limitations of the sensors…

Computer Vision and Pattern Recognition · Computer Science 2018-04-11 Ruben Gomez-Ojeda , Zichao Zhang , Javier Gonzalez-Jimenez , Davide Scaramuzza