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Digitally unwrapping images of paper sheets is crucial for accurate document scanning and text recognition. This paper presents a method for automatically rectifying curved or folded paper sheets from a few images captured from multiple…

Computer Vision and Pattern Recognition · Computer Science 2016-06-02 Shaodi You , Yasuyuki Matsushita , Sudipta Sinha , Yusuke Bou , Katsushi Ikeuchi

Removing degradation from document images not only improves their visual quality and readability, but also enhances the performance of numerous automated document analysis and recognition tasks. However, existing regression-based methods…

Computer Vision and Pattern Recognition · Computer Science 2023-08-10 Zongyuan Yang , Baolin Liu , Yongping Xiong , Lan Yi , Guibin Wu , Xiaojun Tang , Ziqi Liu , Junjie Zhou , Xing Zhang

Image restoration refers to the process of reconstructing noisy, destroyed, or missing parts of an image, which is an ill-posed inverse problem. A specific regularization term and image degradation are typically assumed to achieve…

Image and Video Processing · Electrical Eng. & Systems 2025-04-15 Jianwei Ke

The rapid evolution of intelligent document processing systems demands robust solutions that adapt to diverse domains without extensive retraining. Traditional methods often falter with variable document types, leading to poor performance.…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Maria Pilligua , Nil Biescas , Javier Vazquez-Corral , Josep Lladós , Ernest Valveny , Sanket Biswas

Existing pyramid registration networks may accumulate anatomical misalignments and lack an effective mechanism to dynamically determine the number of optimization iterations under varying deformation requirements across images, leading to…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Heming Wu , Di Wang , Tai Ma , Peng Zhao , Yubin Xiao , Zhongke Wu , Xing-Ce Wang , Xuan Wu , You Zhou

Moire artifacts are common in digital photography, resulting from the interference between high-frequency scene content and the color filter array of the camera. Existing deep learning-based demoireing methods trained on large scale…

Image and Video Processing · Electrical Eng. & Systems 2020-11-06 Lin Liu , Shanxin Yuan , Jianzhuang Liu , Liping Bao , Gregory Slabaugh , Qi Tian

Capturing display screens with mobile devices has become increasingly common, yet the resulting images often suffer from severe degradations caused by the coexistence of moir\'e patterns and flicker-banding, leading to significant visual…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Libo Zhu , Zihan Zhou , Zhiyi Zhou , Yiyang Qu , Weihang Zhang , Keyu Shi , Yifan Fu , Yulun Zhang

Document image dewarping remains a challenging task in the deep learning era. While existing methods have improved by leveraging text line awareness, they typically focus only on a single horizontal dimension. In this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2026-03-05 Heng Li , Xiangping Wu , Qingcai Chen

Recently, text-guided image manipulation has received increasing attention in the research field of multimedia processing and computer vision due to its high flexibility and controllability. Its goal is to semantically manipulate parts of…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Ryugo Morita , Zhiqiang Zhang , Man M. Ho , Jinjia Zhou

In this work, we propose a new paradigm of iterative model-based reconstruction algorithms for providing real-time solution for zooming-in and refining a region of interest in medical and clinical tomographic images. This algorithmic…

Image and Video Processing · Electrical Eng. & Systems 2025-12-01 Junqi Tang , Guixian Xu , Jinglai Li

Extractive summarization aims at selecting a set of indicative sentences from a source document as a summary that can express the major theme of the document. A general consensus on extractive summarization is that both relevance and…

Computation and Language · Computer Science 2016-01-21 Kuan-Yu Chen , Shih-Hung Liu , Berlin Chen , Hsin-Min Wang

Broadspread use of medical imaging devices with digital storage has paved the way for curation of substantial data repositories. Fast access to image samples with similar appearance to suspected cases can help establish a consulting system…

Image and Video Processing · Electrical Eng. & Systems 2022-11-29 Şaban Öztürk , Emin Celik , Tolga Cukur

Towards intelligent image editing, object removal should eliminate both the target object and its causal visual artifacts, such as shadows and reflections. However, existing image appearance-based methods either follow strictly mask-aligned…

Computer Vision and Pattern Recognition · Computer Science 2025-10-08 Zixin Zhu , Haoxiang Li , Xuelu Feng , He Wu , Chunming Qiao , Junsong Yuan

Degradation-agnostic image restoration aims to handle diverse corruptions with one unified model, but faces fundamental challenges in balancing efficiency and performance across different degradation types. Existing approaches either…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Bin Ren , Yawei Li , Xu Zheng , Yuqian Fu , Danda Pani Paudel , Hong Liu , Ming-Hsuan Yang , Luc Van Gool , Nicu Sebe

Recent successes in deep learning based deformable image registration (DIR) methods have demonstrated that complex deformation can be learnt directly from data while reducing computation time when compared to traditional methods. However,…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Sharib Ali , Jens Rittscher

Composed Image Retrieval (CIR) retrieves target images using a multi-modal query that combines a reference image with text describing desired modifications. The primary challenge is effectively fusing this visual and textual information.…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Chaoyang Wang , Zeyu Zhang , Long Teng , Zijun Li , Shichao Kan

Document image has been the area of research for a couple of decades because of its potential application in the area of text recognition, line recognition or any other shape recognition from the image. For most of these purposes…

Computer Vision and Pattern Recognition · Computer Science 2015-02-02 Mahua Nandy , Satadal Saha

Presentation of folded documents is not an uncommon case in modern society. Digitizing such documents by capturing them with a smartphone camera can be tricky since a crease can divide the document contents into separate planes. To unfold…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 A. M. Ershov , D. V. Tropin , E. E. Limonova , D. P. Nikolaev , V. V. Arlazarov

Image corruption by motion artifacts is an ingrained problem in Magnetic Resonance Imaging (MRI). In this work, we propose a neural network-based regularization term to enhance Autofocusing, a classic optimization-based method to remove…

Image and Video Processing · Electrical Eng. & Systems 2022-11-15 Ekaterina Kuzmina , Artem Razumov , Oleg Y. Rogov , Elfar Adalsteinsson , Jacob White , Dmitry V. Dylov

Image cropping is essential in image editing for obtaining a compositionally enhanced image. In display media, image cropping is a prospective technique for automatically creating media content. However, image cropping for media contents is…

Computer Vision and Pattern Recognition · Computer Science 2023-10-16 Takumi Nishiyasu , Wataru Shimoda , Yoichi Sato