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Real-world objects and environments are predominantly composed of edge features, including straight lines and curves. Such edges are crucial elements for various applications, such as CAD modeling, surface meshing, lane mapping, etc.…

计算机视觉与模式识别 · 计算机科学 2024-05-30 Lei Li , Songyou Peng , Zehao Yu , Shaohui Liu , Rémi Pautrat , Xiaochuan Yin , Marc Pollefeys

When determining the parameters of a parametric planar shape based on a single low-resolution image, common estimation paradigms lead to inaccurate parameter estimates. The reason behind poor estimation results is that standard estimation…

计算机视觉与模式识别 · 计算机科学 2019-01-30 Wojciech Chojnacki , Zygmunt L. Szpak

One of the main challenges for arbitrary-shaped text detection is to design a good text instance representation that allows networks to learn diverse text geometry variances. Most of existing methods model text instances in image spatial…

计算机视觉与模式识别 · 计算机科学 2021-04-23 Yiqin Zhu , Jianyong Chen , Lingyu Liang , Zhanghui Kuang , Lianwen Jin , Wayne Zhang

Mathematical reasoning remains an ongoing challenge for AI models, especially for geometry problems that require both linguistic and visual signals. As the vision encoders of most MLLMs are trained on natural scenes, they often struggle to…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Zeren Zhang , Jo-Ku Cheng , Jingyang Deng , Lu Tian , Jinwen Ma , Ziran Qin , Xiaokai Zhang , Na Zhu , Tuo Leng

Two-Dimensional (2D) Discrete Fourier Transform (DFT) is a basic and computationally intensive algorithm, with a vast variety of applications. 2D images are, in general, non-periodic, but are assumed to be periodic while calculating their…

计算机视觉与模式识别 · 计算机科学 2016-03-17 Faisal Mahmood , Märt Toots , Lars-Göran Öfverstedt , Ulf Skoglund

Depth estimation is an essential component in understanding the 3D geometry of a scene, with numerous applications in urban and indoor settings. These scenes are characterized by a prevalence of human made structures, which in most of the…

计算机视觉与模式识别 · 计算机科学 2020-09-03 Mattia Rossi , Mireille El Gheche , Andreas Kuhn , Pascal Frossard

Total variation regularization based on the l1 norm is ubiquitous in image reconstruction. However, the resulting reconstructions are not always as sparse in the edge domain as desired. Iteratively reweighted methods provide some…

图像与视频处理 · 电气工程与系统科学 2022-04-01 Victor Churchill , Rick Archibald , Anne Gelb

Biometrics-related research has been accelerated significantly by deep learning technology. However, there are limited open-source resources to help researchers evaluate their deep learning-based biometrics algorithms efficiently,…

计算机视觉与模式识别 · 计算机科学 2019-02-04 Xiang Xu , Ioannis A. Kakadiaris

We introduce the first learning-based dense matching algorithm, termed Equirectangular Projection-Oriented Dense Kernelized Feature Matching (EDM), specifically designed for omnidirectional images. Equirectangular projection (ERP) images,…

计算机视觉与模式识别 · 计算机科学 2025-03-03 Dongki Jung , Jaehoon Choi , Yonghan Lee , Somi Jeong , Taejae Lee , Dinesh Manocha , Suyong Yeon

Local Fourier analysis is a commonly used tool to assess the quality and aid in the construction of geometric multigrid methods for translationally invariant operators. In this paper we automate the process of local Fourier analysis and…

数值分析 · 数学 2019-07-26 Karsten Kahl , Nils Kintscher

Physics-driven artificial intelligence (PD-AI) reconstruction methods have emerged as the state-of-the-art for accelerating MRI scans, enabling higher spatial and temporal resolutions. However, the high resolution of these scans generates…

图像与视频处理 · 电气工程与系统科学 2025-06-05 Yaşar Utku Alçalar , Yu Cao , Mehmet Akçakaya

It has been shown that equivariant convolution is very helpful for many types of computer vision tasks. Recently, the 2D filter parametrization technique plays an important role when designing equivariant convolutions. However, the current…

计算机视觉与模式识别 · 计算机科学 2023-03-10 Qi Xie , Qian Zhao , Zongben Xu , Deyu Meng

An essential technique for diagnosing brain disorders is electrophysiological source imaging (ESI). While model-based optimization and deep learning methods have achieved promising results in this field, the accurate selection and…

计算机视觉与模式识别 · 计算机科学 2026-01-23 Linyong Zou , Liang Zhang , Xiongfei Wang , Jia-Hong Gao , Yi Sun , Shurong Sheng , Kuntao Xiao , Wanli Yang , Pengfei Teng , Guoming Luan , Zhao Lv , Zikang Xu

Digital artists often improve the aesthetic quality of digital photographs through manual retouching. Beyond global adjustments, professional image editing programs provide local adjustment tools operating on specific parts of an image.…

计算机视觉与模式识别 · 计算机科学 2020-04-01 Sean Moran , Pierre Marza , Steven McDonagh , Sarah Parisot , Gregory Slabaugh

Surface reconstruction with preservation of geometric features is a challenging computer vision task. Despite significant progress in implicit shape reconstruction, state-of-the-art mesh extraction methods often produce aliased,…

计算机视觉与模式识别 · 计算机科学 2023-12-01 Natalia Soboleva , Olga Gorbunova , Maria Ivanova , Evgeny Burnaev , Matthias Nießner , Denis Zorin , Alexey Artemov

We introduce Cayley transform ellipsoid fitting (CTEF), an algorithm that uses the Cayley transform to fit ellipsoids to noisy data in any dimension. Unlike many ellipsoid fitting methods, CTEF is ellipsoid specific, meaning it always…

机器学习 · 统计学 2025-05-07 Omar Melikechi , David B. Dunson

Current tools for exploratory data analysis (EDA) require users to manually select data attributes, statistical computations and visual encodings. This can be daunting for large-scale, complex data. We introduce Foresight, a visualization…

人机交互 · 计算机科学 2017-10-02 Çağatay Demiralp , Peter J. Haas , Srinivasan Parthasarathy , Tejaswini Pedapati

The Euler Characteristic Transform (ECT) of Turner et al. provides a way to statistically analyze non-diffeomorphic shapes without relying on landmarks. In applications, this transform is typically approximated by a discrete set of…

代数拓扑 · 数学 2024-11-14 Henry Kirveslahti , Xiaohan Wang

Edge computing has emerged as a key paradigm for deploying deep learning-based object detection in time-sensitive scenarios. However, existing edge detection methods face challenges: 1) difficulty balancing detection precision with…

计算机视觉与模式识别 · 计算机科学 2024-12-25 Jiaqi Wu , Shihao Zhang , Simin Chen , Lixu Wang , Zehua Wang , Wei Chen , Fangyuan He , Zijian Tian , F. Richard Yu , Victor C. M. Leung

Although EDM aims to unify the design space of diffusion models, its reliance on fixed Gaussian noise prevents it from explaining emerging flow-based methods that diffuse arbitrary noise. Moreover, our study reveals that EDM's forcible…

计算机视觉与模式识别 · 计算机科学 2026-03-06 Xingyu Qiu , Mengying Yang , Xinghua Ma , Dong Liang , Fanding Li , Gongning Luo , Wei Wang , Kuanquan Wang , Shuo Li