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Lens flare is a degradation phenomenon caused by strong light sources. Existing researches on flare removal have mainly focused on images, while the spatiotemporal characteristics of video flare remain largely unexplored. Video flare…

Computer Vision and Pattern Recognition · Computer Science 2025-12-15 Junqiao Wang , Yuanfei Huang , Hua Huang

Traditional image signal processing (ISP) pipeline consists of a set of individual image processing components onboard a camera to reconstruct a high-quality sRGB image from the sensor raw data. Due to the hand-crafted nature of the ISP…

Image and Video Processing · Electrical Eng. & Systems 2019-08-09 Zhetong Liang , Jianrui Cai , Zisheng Cao , Lei Zhang

Developing and integrating advanced image sensors with novel algorithms in camera systems are prevalent with the increasing demand for computational photography and imaging on mobile platforms. However, the lack of high-quality data for…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Yuekun Dai , Chongyi Li , Shangchen Zhou , Ruicheng Feng , Qingpeng Zhu , Qianhui Sun , Wenxiu Sun , Chen Change Loy , Jinwei Gu

Under-display cameras have been proposed in recent years as a way to reduce the form factor of mobile devices while maximizing the screen area. Unfortunately, placing the camera behind the screen results in significant image distortions,…

Image and Video Processing · Electrical Eng. & Systems 2021-11-03 Miao Qi , Yuqi Li , Wolfgang Heidrich

Conventional image signal processing (ISP) frameworks are designed to reconstruct an RGB image from a single raw measurement. As multi-camera systems become increasingly popular these days, it is worth exploring improvements in ISP…

Image and Video Processing · Electrical Eng. & Systems 2022-11-16 Ahmad Bin Rabiah , Qi Guo

Noise modeling and reduction are fundamental tasks in low-level computer vision. They are particularly important for smartphone cameras relying on small sensors that exhibit visually noticeable noise. There has recently been renewed…

Computer Vision and Pattern Recognition · Computer Science 2022-06-03 Shayan Kousha , Ali Maleky , Michael S. Brown , Marcus A. Brubaker

Numerous low-level vision tasks operate in the RAW domain due to its linear properties, bit depth, and sensor designs. Despite this, RAW image datasets are scarce and more expensive to collect than the already large and public sRGB…

Image signal processors (ISPs) are historically grown legacy software systems for reconstructing color images from noisy raw sensor measurements. They are usually composited of many heuristic blocks for denoising, demosaicking, and color…

Computer Vision and Pattern Recognition · Computer Science 2022-03-23 Matheus Souza , Wolfgang Heidrich

In smartphones and compact cameras, the Image Signal Processor (ISP) transforms the RAW sensor image into a human-readable sRGB image. Most popular super-resolution methods depart from a sRGB image and upscale it further, improving its…

Image and Video Processing · Electrical Eng. & Systems 2023-12-27 Marcos V. Conde , Florin Vasluianu , Radu Timofte

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

Recent advances in snapshot multispectral (MS) imaging have enabled compact, low-cost spectral sensors for consumer and mobile devices. By capturing richer spectral information than conventional RGB sensors, these systems can enhance key…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Luca Cogo , Marco Buzzelli , Simone Bianco , Javier Vazquez-Corral , Raimondo Schettini

Artificial lights commonly leave strong lens flare artifacts on the images captured at night, degrading both the visual quality and performance of vision algorithms. Existing flare removal approaches mainly focus on removing daytime flares…

Computer Vision and Pattern Recognition · Computer Science 2023-06-09 Yuekun Dai , Chongyi Li , Shangchen Zhou , Ruicheng Feng , Yihang Luo , Chen Change Loy

Reflection removal technology plays a crucial role in photography and computer vision applications. However, existing techniques are hindered by the lack of high-quality in-the-wild datasets. In this paper, we propose a novel paradigm for…

Computer Vision and Pattern Recognition · Computer Science 2025-06-11 Kangning Yang , Ling Ouyang , Huiming Sun , Jie Cai , Lan Fu , Jiaming Ding , Chiu Man Ho , Zibo Meng

As the revolutionary improvement being made on the performance of smartphones over the last decade, mobile photography becomes one of the most common practices among the majority of smartphone users. However, due to the limited size of…

Image and Video Processing · Electrical Eng. & Systems 2020-09-15 Linhui Dai , Xiaohong Liu , Chengqi Li , Jun Chen

Lens flare occurs when shooting towards strong light sources, significantly degrading the visual quality of images. Due to the difficulty in capturing flare-corrupted and flare-free image pairs in the real world, existing datasets are…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Lishen Qu , Zhihao Liu , Jinshan Pan , Shihao Zhou , Jinglei Shi , Duosheng Chen , Jufeng Yang

Capturing screens is now routine in our everyday lives. But the photographs of emissive displays are often influenced by the flicker-banding (FB), which is alternating bright%u2013dark stripes that arise from temporal aliasing between a…

Computer Vision and Pattern Recognition · Computer Science 2025-10-20 Libo Zhu , Zihan Zhou , Xiaoyang Liu , Weihang Zhang , Keyu Shi , Yifan Fu , Yulun Zhang

This paper presents a modular neural image signal processing (ISP) framework that processes raw inputs and renders high-quality display-referred images. Unlike prior neural ISP designs, our method introduces a high degree of modularity,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Mahmoud Afifi , Zhongling Wang , Ran Zhang , Michael S. Brown

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

In dynamic scenes, images often suffer from dynamic blur due to superposition of motions or low signal-noise ratio resulted from quick shutter speed when avoiding motions. Recovering sharp and clean results from the captured images heavily…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Cheng Zhang , Shaolin Su , Yu Zhu , Qingsen Yan , Jinqiu Sun , Yanning Zhang