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Deep learning has significantly advanced image edge detection (ED), primarily through improved feature extraction. However, most existing ED models apply uniform feature fusion across all pixels, ignoring critical differences between…

Computer Vision and Pattern Recognition · Computer Science 2025-05-26 Hao Shu

Successful video analysis relies on accurate recognition of pixels across frames, and frame reconstruction methods based on video correspondence learning are popular due to their efficiency. Existing frame reconstruction methods, while…

Computer Vision and Pattern Recognition · Computer Science 2025-05-01 Zihan Zhou , Changrui Dai , Aibo Song , Xiaolin Fang

We address the task of estimating camera parameters from a set of images depicting a scene. Popular feature-based structure-from-motion (SfM) tools solve this task by incremental reconstruction: they repeat triangulation of sparse 3D points…

Computer Vision and Pattern Recognition · Computer Science 2024-07-29 Eric Brachmann , Jamie Wynn , Shuai Chen , Tommaso Cavallari , Áron Monszpart , Daniyar Turmukhambetov , Victor Adrian Prisacariu

Automatic medical image segmentation plays a crucial role in computer aided diagnosis. However, fully supervised learning approaches often require extensive and labor-intensive annotation efforts. To address this challenge, weakly…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Lei Shi , Xi Fang , Naiyu Wang , Junxing Zhang

Structure from Motion (SfM) using imagery that involves extreme appearance changes is yet a challenging task due to a loss of feature repeatability. Using feature correspondences obtained by matching densely extracted convolutional neural…

Computer Vision and Pattern Recognition · Computer Science 2018-05-14 Aji Resindra Widya , Akihiko Torii , Masatoshi Okutomi

Optical endoscopy plays a crucial role in minimally invasive medical diagnostics and therapeutic procedures. Nonetheless, state-of-the-art endoscopic zoom objectives are bulky, requiring multi-element lens actuation, which can limit…

Objective: Reconstructing freehand ultrasound in 3D without any external tracker has been a long-standing challenge in ultrasound-assisted procedures. We aim to define new ways of parameterising long-term dependencies, and evaluate the…

Image and Video Processing · Electrical Eng. & Systems 2023-11-22 Qi Li , Ziyi Shen , Qian Li , Dean C. Barratt , Thomas Dowrick , Matthew J. Clarkson , Tom Vercauteren , Yipeng Hu

3D reconstruction of endoscopic surgery scenes plays a vital role in enhancing scene perception, enabling AR visualization, and supporting context-aware decision-making in image-guided surgery. A critical yet challenging step in this…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Changhao Zhang , Matthew J. Clarkson , Mobarak I. Hoque

Intrinsically disordered regions of proteins play a crucial role in cell signaling and drug discovery. However, their high structural flexibility makes accurate residue-level prediction challenging. Existing methods often rely on…

Neural and Evolutionary Computing · Computer Science 2026-03-09 Shaokuan Wang , Pengshan Cui , Yining Qian , An-Yang Lu , Xianpeng Wang

Accurate 3D foot reconstruction is crucial for personalized orthotics, digital healthcare, and virtual fittings. However, existing methods struggle with incomplete scans and anatomical variations, particularly in self-scanning scenarios…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Kyle Fogarty , Jing Yang , Chayan Kumar Patodi , Jack Foster , Aadi Bhanti , Steven Chacko , Cengiz Oztireli , Ujwal Bonde

$\textbf{Background:}$ Accelerating dynamic MRI is vital for advancing clinical applications and improving patient comfort. Commonly, deep learning (DL) methods for accelerated dynamic MRI reconstruction typically rely on uniformly applying…

Image and Video Processing · Electrical Eng. & Systems 2025-03-24 George Yiasemis , Jan-Jakob Sonke , Jonas Teuwen

Sparse local feature extraction is usually believed to be of important significance in typical vision tasks such as simultaneous localization and mapping, image matching and 3D reconstruction. At present, it still has some deficiencies…

Computer Vision and Pattern Recognition · Computer Science 2025-08-18 Jiayuan Sun , Jiewen Zhu , Luping Ji

Learning 3D representation plays a critical role in masked autoencoder (MAE) based pre-training methods for point cloud, including single-modal and cross-modal based MAE. Specifically, although cross-modal MAE methods learn strong 3D…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Yaohua Zha , Huizhen Ji , Jinmin Li , Rongsheng Li , Tao Dai , Bin Chen , Zhi Wang , Shu-Tao Xia

A Point Distribution Model (PDM) is the basis of a Statistical Shape Model (SSM) that relies on a set of landmark points to represent a shape and characterize the shape variation. In this work, we present a self-supervised approach to…

Computer Vision and Pattern Recognition · Computer Science 2023-08-10 Chun-Hung Chao , Marc Niethammer

Fully-supervised CNN-based approaches for learning local image descriptors have shown remarkable results in a wide range of geometric tasks. However, most of them require per-pixel ground-truth keypoint correspondence data which is…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Iaroslav Melekhov , Zakaria Laskar , Xiaotian Li , Shuzhe Wang , Juho Kannala

Image-based 3D reconstruction is one of the most important tasks in Computer Vision with many solutions proposed over the last few decades. The objective is to extract metric information i.e. the geometry of scene objects directly from…

Computer Vision and Pattern Recognition · Computer Science 2022-09-16 Qiao Chen , Charalambos Poullis

3D scene reconstruction from stereo endoscopic video data is crucial for advancing surgical interventions. In this work, we present an online framework for online, dense 3D scene reconstruction and tracking, aimed at enhancing surgical…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Michel Hayoz , Christopher Hahne , Thomas Kurmann , Max Allan , Guido Beldi , Daniel Candinas , ablo Márquez-Neila , Raphael Sznitman

Researchers have attempted utilizing deep neural network (DNN) to learn novel local features from images inspired by its recent successes on a variety of vision tasks. However, existing DNN-based algorithms have not achieved such remarkable…

Computer Vision and Pattern Recognition · Computer Science 2020-06-11 Yafei Song , Ling Cai , Jia Li , Yonghong Tian , Mingyang Li

Keypoint detection and description is a commonly used building block in computer vision systems particularly for robotics and autonomous driving. However, the majority of techniques to date have focused on standard cameras with little…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Anna Konrad , Ciarán Eising , Ganesh Sistu , John McDonald , Rudi Villing , Senthil Yogamani

Functions with jumps and kinks typically arising from parameter dependent or stochastic hyperbolic PDEs are notoriously difficult to approximate. If the jump location in physical space is parameter dependent or random, standard…

Numerical Analysis · Mathematics 2015-05-07 G. Welper