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Reflective flare is a phenomenon that occurs when light reflects inside lenses, causing bright spots or a "ghosting effect" in photos, which can impact their quality. Eliminating reflective flare is highly desirable but challenging. Many…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Yuekun Dai , Yihang Luo , Shangchen Zhou , Chongyi Li , Chen Change Loy

When a camera is pointed at a strong light source, the resulting photograph may contain lens flare artifacts. Flares appear in a wide variety of patterns (halos, streaks, color bleeding, haze, etc.) and this diversity in appearance makes…

Image and Video Processing · Electrical Eng. & Systems 2021-10-11 Yicheng Wu , Qiurui He , Tianfan Xue , Rahul Garg , Jiawen Chen , Ashok Veeraraghavan , Jonathan T. Barron

Flare, an optical phenomenon resulting from unwanted scattering and reflections within a lens system, presents a significant challenge in imaging. The diverse patterns of flares, such as halos, streaks, color bleeding, and haze, complicate…

Computer Vision and Pattern Recognition · Computer Science 2024-12-19 Gopi Raju Matta , Rahul Siddartha , Rongali Simhachala Venkata Girish , Sumit Sharma , Kaushik Mitra

Artificial lights commonly leave strong lens flare artifacts on images captured at night. Nighttime flare not only affects the visual quality but also degrades the performance of vision algorithms. Existing flare removal methods mainly…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Yuekun Dai , Chongyi Li , Shangchen Zhou , Ruicheng Feng , Chen Change Loy

The recovery of high-quality images from images corrupted by lens flare presents a significant challenge in low-level vision. Contemporary deep learning methods frequently entail training a lens flare removing model from scratch. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Tianwen Zhou , Qihao Duan , Zitong Yu

Lens flare is a common nighttime artifact caused by strong light sources scattering within camera lenses, leading to hazy streaks, halos, and glare that degrade visual quality. However, existing methods usually fail to effectively address…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Xiyu Zhu , Wei Wang , Xin Yuan , Xiao Wang

Lens flare significantly degrades image quality, impacting critical computer vision tasks like object detection and autonomous driving. Recent Single Image Flare Removal (SIFR) methods perform poorly when off-frame light sources are…

Computer Vision and Pattern Recognition · Computer Science 2025-10-20 Shr-Ruei Tsai , Wei-Cheng Chang , Jie-Ying Lee , Chih-Hai Su , Yu-Lun Liu

Lens flare is a common image artifact that can significantly degrade image quality and affect the performance of computer vision systems due to a strong light source pointing at the camera. This survey provides a comprehensive overview of…

Image and Video Processing · Electrical Eng. & Systems 2023-10-24 Yousef Kotp , Marwan Torki

Sun Glare widely exists in the images captured by unmanned ground and aerial vehicles performing in outdoor environments. The existence of such artifacts in images will result in wrong feature extraction and failure of autonomous systems.…

Robotics · Computer Science 2021-10-14 Mahdi Abolfazli Esfahani , Han Wang

Taking pictures through glass windows almost always produces undesired reflections that degrade the quality of the photo. The ill-posed nature of the reflection removal problem reached the attention of many researchers for more than…

Image and Video Processing · Electrical Eng. & Systems 2021-05-12 Andreea Birhala , Ionut Mironica

Strong light sources in nighttime photography frequently produce flares in images, significantly degrading visual quality and impacting the performance of downstream tasks. While some progress has been made, existing methods continue to…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Minglong Xue , Aoxiang Ning , Shivakumara Palaiahnakote , Mingliang Zhou

When taking images against strong light sources, the resulting images often contain heterogeneous flare artifacts. These artifacts can importantly affect image visual quality and downstream computer vision tasks. While collecting real data…

Image and Video Processing · Electrical Eng. & Systems 2023-09-01 Yuyan Zhou , Dong Liang , Songcan Chen , Sheng-Jun Huang , Shuo Yang , Chongyi Li

Photographing in the under-illuminated scenes, the presence of complex light sources often leave strong flare artifacts in images, where the intensity, the spectrum, the reflection, and the aberration altogether contribute the…

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

Lens flare removal is challenging due to the large spatial extent of flare artifacts and their entanglement with scene structures, while existing methods heavily rely on large-scale paired data. We propose a semi-supervised flare removal…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Xiyu Zhu , Wei Wang , Kui Jiang , Zhengguo Li

We present a learning-based approach for removing unwanted obstructions, such as window reflections, fence occlusions, or adherent raindrops, from a short sequence of images captured by a moving camera. Our method leverages motion…

Computer Vision and Pattern Recognition · Computer Science 2021-07-27 Yu-Lun Liu , Wei-Sheng Lai , Ming-Hsuan Yang , Yung-Yu Chuang , Jia-Bin Huang

When light is scattered or reflected accidentally in the lens, flare artifacts may appear in the captured photos, affecting the photos' visual quality. The main challenge in flare removal is to eliminate various flare artifacts while…

Computer Vision and Pattern Recognition · Computer Science 2024-06-27 Yiguo Jiang , Xuhang Chen , Chi-Man Pun , Shuqiang Wang , Wei Feng

Most existing Low-Light Image Enhancement (LLIE) methods are primarily designed to improve brightness in dark regions, which suffer from severe degradation in nighttime images. However, these methods have limited exploration in another…

Computer Vision and Pattern Recognition · Computer Science 2023-08-01 Wanyu Wu , Wei Wang , Zheng Wang , Kui Jiang , Xin Xu

Multi-exposure image fusion (MEF) synthesizes multiple, differently exposed images of the same scene into a single, well-exposed composite. Retinex theory, which separates image illumination from scene reflectance, provides a natural…

Computer Vision and Pattern Recognition · Computer Science 2025-08-04 Haowen Bai , Jiangshe Zhang , Zixiang Zhao , Lilun Deng , Yukun Cui , Shuang Xu

Gravitational lensing is the phenomenon arising when light rays are deflected by the mass between the source and the observer. Largely magnified and highly distorted images of background galaxies are formed by these angular deflections if…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-02 Atınç Çağan Şengül

In this paper, we address the single image haze removal problem in a nighttime scene. The night haze removal is a severely ill-posed problem especially due to the presence of various visible light sources with varying colors and non-uniform…

Computer Vision and Pattern Recognition · Computer Science 2019-02-05 Shiba Kuanar , K. R. Rao , Dwarikanath Mahapatra , Monalisa Bilas
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