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Recent advances in neural camera imaging pipelines have demonstrated notable progress. Nevertheless, the real-world imaging pipeline still faces challenges including the lack of joint optimization in system components, computational…

Image and Video Processing · Electrical Eng. & Systems 2024-11-19 Kepeng Xu , Zijia Ma , Li Xu , Gang He , Yunsong Li , Wenxin Yu , Taichu Han , Cheng Yang

Existing methods for image alignment struggle in cases involving feature-sparse regions, extreme scale and field-of-view differences, and large deformations, often resulting in suboptimal accuracy. Robustness to these challenges can be…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Kanggeon Lee , Soochahn Lee , Kyoung Mu Lee

State-of-the-art document dewarping techniques learn to predict 3-dimensional information of documents which are prone to errors while dealing with documents with irregular distortions or large variations in depth. This paper presents…

Computer Vision and Pattern Recognition · Computer Science 2022-03-21 Chuhui Xue , Zichen Tian , Fangneng Zhan , Shijian Lu , Song Bai

Visual images corrupted by various types and levels of degradations are commonly encountered in practical image compression. However, most existing image compression methods are tailored for clean images, therefore struggling to achieve…

Computer Vision and Pattern Recognition · Computer Science 2025-05-01 Huimin Zeng , Jiacheng Li , Ziqiang Zheng , Zhiwei Xiong

As camera-based documents are increasingly used, the rectification of distorted document images becomes a need to improve the recognition performance. In this paper, we propose a novel framework for both rectifying distorted document image…

Computer Vision and Pattern Recognition · Computer Science 2021-04-15 Guo-Wang Xie , Fei Yin , Xu-Yao Zhang , Cheng-Lin Liu

In this work, we use multi-view aerial images to reconstruct the geometry, lighting, and material of facades using neural signed distance fields (SDFs). Without the requirement of complex equipment, our method only takes simple RGB images…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Zixuan Xie , Rengan Xie , Rong Li , Kai Huang , Pengju Qiao , Jingsen Zhu , Xu Yin , Qi Ye , Wei Hua , Yuchi Huo , Hujun Bao

Large-volume optical coherence tomography (OCT)-setups employ scanning mirrors and suffer from non-linear geometric distortion artifacts in which the degree of distortion is determined by the maximum angles over which the mirrors rotate. In…

Image restoration requires a careful balance between noise suppression and structure preservation. While first-order total variation (TV) regularization effectively preserves edges, it often introduces staircase artifacts, whereas…

Numerical Analysis · Mathematics 2025-11-13 Liang Luo , Lei Zhang

Wide-angle cameras, despite their popularity for content creation, suffer from distortion-induced facial stretching-especially at the edge of the lens-which degrades visual appeal. To address this issue, we propose a structure-to-detail…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Wenbo Nie , Lang Nie , Chunyu Lin , Jingwen Chen , Ke Xing , Jiyuan Wang , Kang Liao

Capturing geometric and material information from images remains a fundamental challenge in computer vision and graphics. Traditional optimization-based methods often require hours of computational time to reconstruct geometry, material…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 Zhibing Li , Tong Wu , Jing Tan , Mengchen Zhang , Jiaqi Wang , Dahua Lin

Neural Radiance Fields (NeRF) achieve remarkable performance in dense multi-view scenarios, but their reconstruction quality degrades significantly under sparse inputs due to geometric artifacts. Existing methods utilize global depth…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Weiqi Yu , Yiyang Yao , Lin He , Jianming Lv

Template matching is a fundamental task in computer vision and has been studied for decades. It plays an essential role in manufacturing industry for estimating the poses of different parts, facilitating downstream tasks such as robotic…

Computer Vision and Pattern Recognition · Computer Science 2024-08-21 Zhirui Gao , Renjiao Yi , Zheng Qin , Yunfan Ye , Chenyang Zhu , Kai Xu

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

Blind all-in-one image restoration models aim to recover a high-quality image from an input degraded with unknown distortions. However, these models require all the possible degradation types to be defined during the training stage while…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 David Serrano-Lozano , Luis Herranz , Shaolin Su , Javier Vazquez-Corral

We propose AdaDS, a generalizable framework for depth super-resolution that robustly recovers high-resolution depth maps from arbitrarily degraded low-resolution inputs. Unlike conventional approaches that directly regress depth values and…

Computer Vision and Pattern Recognition · Computer Science 2026-02-11 Kun Wang , Yun Zhu , Pan Zhou , Na Zhao

Diffusion-based generative image compression has demonstrated remarkable potential for achieving realistic reconstruction at ultra-low bitrates. The key to unlocking this potential lies in making the entire compression process…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Xihua Sheng , Lingyu Zhu , Tianyu Zhang , Dong Liu , Shiqi Wang , Jing Wang

Blind face restoration (BFR) is a highly challenging problem due to the uncertainty of degradation patterns. Current methods have low generalization across photorealistic and heterogeneous domains. In this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Nan Gao , Jia Li , Huaibo Huang , Zhi Zeng , Ke Shang , Shuwu Zhang , Ran He

3D anomaly detection (AD) is a crucial task in computer vision, aiming to identify anomalous points or regions from point cloud data. However, existing methods may encounter challenges when handling point clouds with changes in orientation…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Hanzhe Liang , Jie Zhou , Can Gao , Bingyang Guo , Jinbao Wang , Linlin Shen

Many studies have been conducted so far on image restoration, the problem of restoring a clean image from its distorted version. There are many different types of distortion which affect image quality. Previous studies have focused on…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Masanori Suganuma , Xing Liu , Takayuki Okatani

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