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Although gaze estimation methods have been developed with deep learning techniques, there has been no such approach as aim to attain accurate performance in low-resolution face images with a pixel width of 50 pixels or less. To solve a…

Computer Vision and Pattern Recognition · Computer Science 2022-09-22 Jun-Seok Yun , Youngju Na , Hee Hyeon Kim , Hyung-Il Kim , Seok Bong Yoo

Generating a high-quality High Dynamic Range (HDR) image from dynamic scenes has recently been extensively studied by exploiting Deep Neural Networks (DNNs). Most DNNs-based methods require a large amount of training data with ground truth,…

Computer Vision and Pattern Recognition · Computer Science 2023-04-17 Qingsen Yan , Song Zhang , Weiye Chen , Hao Tang , Yu Zhu , Jinqiu Sun , Luc Van Gool , Yanning Zhang

The large language model and high-level vision model have achieved impressive performance improvements with large datasets and model sizes. However, low-level computer vision tasks, such as image dehaze and blur removal, still rely on a…

Computer Vision and Pattern Recognition · Computer Science 2023-06-29 Zheyan Jin , Shiqi Chen , Yueting Chen , Zhihai Xu , Huajun Feng

Side-scan sonar (SSS) is a lightweight acoustic sensor that is commonly deployed on autonomous underwater vehicles (AUVs) to provide high-resolution seafloor images. However, leveraging side-scan images for simultaneous localization and…

Robotics · Computer Science 2024-11-18 Jun Zhang , Yiping Xie , Li Ling , John Folkesson

Single image dehazing is a critical image pre-processing step for subsequent high-level computer vision tasks. However, it remains challenging due to its ill-posed nature. Existing dehazing models tend to suffer from model overcomplexity…

Computer Vision and Pattern Recognition · Computer Science 2019-07-09 Jing Zhang , Dacheng Tao

Images captured in hazy weather generally suffer from quality degradation, and many dehazing methods have been developed to solve this problem. However, single image dehazing problem is still challenging due to its ill-posed nature. In this…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Pengyang Ling , Huaian Chen , Xiao Tan , Yimeng Shan , Yi Jin

Using very long baseline interferometry, the Event Horizon Telescope (EHT) collaboration has resolved the shadows of two supermassive black holes. Model comparison is traditionally performed in image space, where imaging algorithms…

Haze and fog reduce the visibility of outdoor scenes as a veil like semi-transparent layer appears over the objects. As a result, images captured under such conditions lack contrast. Image dehazing methods try to alleviate this problem by…

Computer Vision and Pattern Recognition · Computer Science 2018-11-28 Shirsendu Sukanta Halder , Sanchayan Santra , Bhabatosh Chanda

We study theoretical implications of a rapid Very-High-Energy (VHE) flare detected by MAGIC in the Flat-Spectrum Radio Quasar PKS 1222+216. The minimum distance from the jet origin at which this flare could be produced is 0.5 pc. A moderate…

High Energy Astrophysical Phenomena · Physics 2015-06-04 Krzysztof Nalewajko , Mitchell C. Begelman , Benoit Cerutti , Dmitri A. Uzdensky , Marek Sikora

Degradation of image quality due to the presence of haze is a very common phenomenon. Existing DehazeNet [3], MSCNN [11] tackled the drawbacks of hand crafted haze relevant features. However, these methods have the problem of color…

Computer Vision and Pattern Recognition · Computer Science 2018-01-26 Akshay Dudhane , Subrahmanyam Murala

Image dehazing remains a challenging problem due to the spatially varying nature of haze in real-world scenes. While existing methods have demonstrated the promise of large-scale pretrained models for image dehazing, their…

Computer Vision and Pattern Recognition · Computer Science 2025-08-11 Hongfei Zhang , Kun Zhou , Ruizheng Wu , Jiangbo Lu

The reconstructed images from the Synthetic Aperture Radar (SAR) data suffer from multiplicative noise as well as low contrast level. These two factors impact the quality of the SAR images significantly and prevent any attempt to extract…

Image and Video Processing · Electrical Eng. & Systems 2024-12-05 Shahrokh Hamidi

Nighttime image dehazing remains a challenging low-level vision problem due to the joint presence of haze, glow, non-uniform illumination, color distortion, and sensor noise, which often invalidate assumptions commonly used in daytime…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Mohammad Heydari , Wei Dong , Shahram Shirani , Jun Chen , Han Zhou

The application of vision-based multi-view environmental perception system has been increasingly recognized in autonomous driving technology, especially the BEV-based models. Current state-of-the-art solutions primarily encode image…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Di Wu , Feng Yang , Benlian Xu , Pan Liao , Wenhui Zhao , Dingwen Zhang

We propose a novel Iterative Predictor-Critic Code Decoding framework for real-world image dehazing, abbreviated as IPC-Dehaze, which leverages the high-quality codebook prior encapsulated in a pre-trained VQGAN. Apart from previous…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Jiayi Fu , Siyu Liu , Zikun Liu , Chun-Le Guo , Hyunhee Park , Ruiqi Wu , Guoqing Wang , Chongyi Li

High dynamic range (HDR) imaging is an important task in image processing that aims to generate well-exposed images in scenes with varying illumination. Although existing multi-exposure fusion methods have achieved impressive results,…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Jun Xiao , Qian Ye , Tianshan Liu , Cong Zhang , Kin-Man Lam

At present, the ground-based astronomy of very high energy (VHE) (E>100 GeV) gamma-rays experiences the challenging transition phase caused by the substantial upgrading of its observational instrumentation. Recently the HEGRA collaboration…

Astrophysics · Physics 2008-11-26 Alexander K Konopelko

Overfitting to synthetic training pairs remains a critical challenge in image dehazing, leading to poor generalization capability to real-world scenarios. To address this issue, existing approaches utilize unpaired realistic data for…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Haoyou Deng , Zhiqiang Li , Feng Zhang , Qingbo Lu , Zisheng Cao , Yuanjie Shao , Shuhang Gu , Changxin Gao , Nong Sang

This paper addresses the limitations of physical models in the current field of image dehazing by proposing an innovative dehazing network (CL2S). Building on the DM2F model, it identifies issues in its ablation experiments and replaces the…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Yesian Rohn

Image dehazing aims to restore image clarity and visual quality by reducing atmospheric scattering and absorption effects. While deep learning has made significant strides in this area, more and more methods are constrained by network…

Computer Vision and Pattern Recognition · Computer Science 2024-09-16 Wang Yinglong , He Bin