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We implement an algorithm for detecting and removing artifacts from astronomical images by means of outlier rejection during stacking. Our method is capable of addressing both small, highly significant artifacts such as cosmic rays and, by…

Instrumentation and Methods for Astrophysics · Physics 2015-06-18 D. Gruen , S. Seitz , G. M. Bernstein

We present a novel formulation to removing reflection from polarized images in the wild. We first identify the misalignment issues of existing reflection removal datasets where the collected reflection-free images are not perfectly aligned…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Chenyang Lei , Xuhua Huang , Mengdi Zhang , Qiong Yan , Wenxiu Sun , Qifeng Chen

One of the more significant obstacles in classification of skin cancer is the presence of artifacts. This paper investigates the effect of dark corner artifacts, which result from the use of dermoscopes, on the performance of a deep…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Samuel William Pewton , Bill Cassidy , Connah Kendrick , Moi Hoon Yap

Fabricating experimental pictures in research work is a serious academic misconduct, which should better be detected in the reviewing process. However, due to large number of submissions, the detection whether a picture is fabricated or…

Computer Vision and Pattern Recognition · Computer Science 2020-02-11 Binrui Shen , Qiang Niu , Shengxin Zhu

Vehicles can encounter a myriad of obstacles on the road, and it is impossible to record them all beforehand to train a detector. Instead, we select image patches and inpaint them with the surrounding road texture, which tends to remove…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Krzysztof Lis , Sina Honari , Pascal Fua , Mathieu Salzmann

Highly realistic AI generated face forgeries known as deepfakes have raised serious social concerns. Although DNN-based face forgery detection models have achieved good performance, they are vulnerable to latest generative methods that have…

Computer Vision and Pattern Recognition · Computer Science 2024-04-15 Yang Li , Songlin Yang , Wei Wang , Ziwen He , Bo Peng , Jing Dong

Could we compress images via standard codecs while avoiding visible artifacts? The answer is obvious -- this is doable as long as the bit budget is generous enough. What if the allocated bit-rate for compression is insufficient? Then…

Image and Video Processing · Electrical Eng. & Systems 2021-08-11 Hossein Talebi , Damien Kelly , Xiyang Luo , Ignacio Garcia Dorado , Feng Yang , Peyman Milanfar , Michael Elad

Banding artifacts, which manifest as staircase-like color bands on pictures or video frames, is a common distortion caused by compression of low-textured smooth regions. These false contours can be very noticeable even on high-quality…

Image and Video Processing · Electrical Eng. & Systems 2020-10-28 Zhengzhong Tu , Jessie Lin , Yilin Wang , Balu Adsumilli , Alan C. Bovik

As deep learning technology continues to evolve, the images yielded by generative models are becoming more and more realistic, triggering people to question the authenticity of images. Existing generated image detection methods detect…

Computer Vision and Pattern Recognition · Computer Science 2023-11-03 Xiuli Bi , Bo Liu , Fan Yang , Bin Xiao , Weisheng Li , Gao Huang , Pamela C. Cosman

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

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

Polarization measurements done using Imaging Polarimeters such as the Robotic Polarimeter are very sensitive to the presence of artefacts in images. Artefacts can range from internal reflections in a telescope to satellite trails that could…

Visual place recognition tasks often encounter significant challenges in landmark detection due to the presence of irrelevant objects such as humans, cars, and trees, despite the remarkable progress achieved by previous models, especially…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Mohammad Javad Rajabi , Morteza Mirzai , Ahmad Nickabadi

Recent rapid advancements in deepfake technology have allowed the creation of highly realistic fake media, such as video, image, and audio. These materials pose significant challenges to human authentication, such as impersonation,…

Cryptography and Security · Computer Science 2023-09-12 Binh Le , Shahroz Tariq , Alsharif Abuadbba , Kristen Moore , Simon Woo

The shutter strategy applied to the photo-shooting process has a significant influence on the quality of the captured photograph. An improper shutter may lead to a blurry image, video discontinuity, or rolling shutter artifact. Existing…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Xinyu Zhang , Hefei Huang , Xu Jia , Dong Wang , Huchuan Lu

Synthetic image generation has opened up new opportunities but has also created threats in regard to privacy, authenticity, and security. Detecting fake images is of paramount importance to prevent illegal activities, and previous research…

Computer Vision and Pattern Recognition · Computer Science 2023-02-27 Md Awsafur Rahman , Bishmoy Paul , Najibul Haque Sarker , Zaber Ibn Abdul Hakim , Shaikh Anowarul Fattah

Artists are increasingly concerned about advancements in image generation models that can closely replicate their unique artistic styles. In response, several protection tools against style mimicry have been developed that incorporate small…

Cryptography and Security · Computer Science 2025-02-12 Robert Hönig , Javier Rando , Nicholas Carlini , Florian Tramèr

Invisible watermarks safeguard images' copyrights by embedding hidden messages only detectable by owners. They also prevent people from misusing images, especially those generated by AI models. We propose a family of regeneration attacks to…

Cryptography and Security · Computer Science 2024-11-01 Xuandong Zhao , Kexun Zhang , Zihao Su , Saastha Vasan , Ilya Grishchenko , Christopher Kruegel , Giovanni Vigna , Yu-Xiang Wang , Lei Li

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

Astronomical images from optical photometric surveys are typically contaminated with transient artifacts such as cosmic rays, satellite trails and scattered light. We have developed and tested an algorithm that removes these artifacts using…

Instrumentation and Methods for Astrophysics · Physics 2016-05-16 Shantanu Desai , Joseph Mohr , Emmanuel Bertin , Martin Kummel , Michael Wetzstein