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Taking photos of optoelectronic displays is a direct and spontaneous way of transferring data and keeping records, which is widely practiced. However, due to the analog signal interference between the pixel grids of the display screen and…

Multimedia · Computer Science 2018-04-13 Bolin Liu , Xiao Shu , Xiaolin Wu

Dental crown restoration is one of the most common treatment modalities for tooth defect, where personalized dental crown design is critical. While computer-aided design (CAD) systems have notably enhanced the efficiency of dental crown…

Computer Vision and Pattern Recognition · Computer Science 2026-03-06 Linda Wei , Chang Liu , Wenran Zhang , Yuxuan Hu , Ruiyang Li , Feng Qi , Changyao Tian , Ke Wang , Yuanyuan Wang , Shaoting Zhang , Dimitris Metaxas , Hongsheng Li

Document dewarping, aiming to eliminate geometric deformation in photographed documents to benefit text recognition, has made great progress in recent years but is still far from being solved. While Cartesian coordinates are typically…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Weiguang Zhang , Qiufeng Wang , Kaizhu Huang

Image restoration problems are typically ill-posed in the sense that each degraded image can be restored in infinitely many valid ways. To accommodate this, many works generate a diverse set of outputs by attempting to randomly sample from…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Noa Cohen , Hila Manor , Yuval Bahat , Tomer Michaeli

This paper presents a novel iterative deep learning framework and apply it for document enhancement and binarization. Unlike the traditional methods which predict the binary label of each pixel on the input image, we train the neural…

Computer Vision and Pattern Recognition · Computer Science 2019-01-21 Sheng He , Lambert Schomaker

When shooting electronic screens, moir\'e patterns usually appear in captured images, which seriously affects the image quality. Existing image demoir\'eing methods face great challenges in removing large and heavy moir\'e. To address the…

Computer Vision and Pattern Recognition · Computer Science 2025-06-11 Yanting Mei , Zhilu Zhang , Xiaohe Wu , Wangmeng Zuo

The ubiquity of smartphone cameras has led to more and more documents being captured by cameras rather than scanned. Unlike flatbed scanners, photographed documents are often folded and crumpled, resulting in large local variance in text…

Computer Vision and Pattern Recognition · Computer Science 2020-08-06 Amir Markovitz , Inbal Lavi , Or Perel , Shai Mazor , Roee Litman

Rainy weather significantly deteriorates the visibility of scene objects, particularly when images are captured through outdoor camera lenses or windshields. Through careful observation of numerous rainy photos, we have found that the…

Computer Vision and Pattern Recognition · Computer Science 2023-04-03 Yongzhen Wang , Xuefeng Yan , Yanbiao Niu , Lina Gong , Yanwen Guo , Mingqiang Wei

The Jaccard index, also known as Intersection-over-Union (IoU), is one of the most critical evaluation metrics in image semantic segmentation. However, direct optimization of IoU score is very difficult because the learning objective is…

Computer Vision and Pattern Recognition · Computer Science 2021-12-23 Litao Yu , Zhibin Li , Min Xu , Yongsheng Gao , Jiebo Luo , Jian Zhang

Many real-world applications, such as interactive photo retouching, artistic content creation, and product design, require flexible and iterative image editing. However, existing image editing methods primarily focus on achieving the…

Computer Vision and Pattern Recognition · Computer Science 2025-05-08 Zijun Zhou , Yingying Deng , Xiangyu He , Weiming Dong , Fan Tang

Compared with flatbed scanners, portable smartphones provide more convenience for physical document digitization. However, such digitized documents are often distorted due to uncontrolled physical deformations, camera positions, and…

Computer Vision and Pattern Recognition · Computer Science 2022-12-27 Hao Feng , Wengang Zhou , Jiajun Deng , Qi Tian , Houqiang Li

Seam carving is an image editing method that enable content-aware resizing, including operations like removing objects. However, the seam-finding strategy based on dynamic programming or graph-cut limits its applications to broader visual…

Computer Vision and Pattern Recognition · Computer Science 2024-08-07 Tim Elsner , Julia Berger , Tong Wu , Victor Czech , Lin Gao , Leif Kobbelt

Most existing image restoration methods use neural networks to learn strong image-level priors from huge data to estimate the lost information. However, these works still struggle in cases when images have severe information deficits.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-01 Yunpeng Bai , Cairong Wang , Shuzhao Xie , Chao Dong , Chun Yuan , Zhi Wang

Information Retrieval (IR) methods aim to identify documents relevant to a query, which have been widely applied in various natural language tasks. However, existing approaches typically consider only the textual content within documents,…

Computation and Language · Computer Science 2026-01-26 Jaewoo Lee , Joonho Ko , Jinheon Baek , Soyeong Jeong , Sung Ju Hwang

Modern digital cameras rely on the sequential execution of separate image processing steps to produce realistic images. The first two steps are usually related to denoising and demosaicking where the former aims to reduce noise from the…

Computer Vision and Pattern Recognition · Computer Science 2019-04-02 Filippos Kokkinos , Stamatios Lefkimmiatis

This paper proposes an approach to content-preserving stitching of images with regular boundary constraints, which aims to stitch multiple images to generate a panoramic image with regular boundary. Existing methods treat image stitching…

Graphics · Computer Science 2019-02-12 Yun Zhang , Yu-Kun Lai , Fang-Lue Zhang

Image restoration (IR) is challenging due to the complexity of real-world degradations. While many specialized and all-in-one IR models have been developed, they fail to effectively handle complex, mixed degradations. Recent agentic methods…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Xu Jiang , Gehui Li , Bin Chen , Jian Zhang

Rendering realistic images from 3D reconstruction is an essential task of many Computer Vision and Robotics pipelines, notably for mixed-reality applications as well as training autonomous agents in simulated environments. However, the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Lukas Bösiger , Mihai Dusmanu , Marc Pollefeys , Zuria Bauer

Diffusion models have demonstrated impressive performance in text-guided image generation. Current methods that leverage the knowledge of these models for image editing either fine-tune them using the input image (e.g., Imagic) or…

Computer Vision and Pattern Recognition · Computer Science 2023-11-09 Zhongping Zhang , Jian Zheng , Jacob Zhiyuan Fang , Bryan A. Plummer

Composed Image Retrieval (CIR) represents a novel retrieval paradigm that is capable of expressing users' intricate retrieval requirements flexibly. It enables the user to give a multimodal query, comprising a reference image and a…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Zhiwei Chen , Yupeng Hu , Zixu Li , Zhiheng Fu , Xuemeng Song , Liqiang Nie