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Accurate airway segmentation from chest computed tomography (CT) scans is essential for quantitative lung analysis, yet manual annotation is impractical and many automated U-Net-based methods yield disconnected components that hinder…

Computer Vision and Pattern Recognition · Computer Science 2026-02-12 John M. Oyer , Ali Namvar , Benjamin A. Hoff , Wassim W. Labaki , Ella A. Kazerooni , Charles R. Hatt , Fernando J. Martinez , MeiLan K. Han , Craig J. Galbán , Sundaresh Ram

With the forecast increase in air traffic demand over the next decades, it is imperative to develop tools to provide traffic flow managers with the information required to support decision making. In particular, decision-support tools for…

Systems and Control · Computer Science 2015-03-18 Erwan Salaün , Maxime Gariel , Adan Vela , Eric Feron

Cutting-plane methods have enabled remarkable successes in integer programming over the last few decades. State-of-the-art solvers integrate a myriad of cutting-plane techniques to speed up the underlying tree-search algorithm used to find…

Artificial Intelligence · Computer Science 2021-06-09 Maria-Florina Balcan , Siddharth Prasad , Tuomas Sandholm , Ellen Vitercik

The finely tuned structures of membrane channels allow selective passage of ions through the available aqueous pores. In order to understand channel function, it is crucial to locate the pore and study its physical and chemical properties.…

Soft Condensed Matter · Physics 2007-05-23 Z. Kuang , A. Liu , T. L. Beck

In this work, we tackle the limitations of current LiDAR-based 3D object detection systems, which are hindered by a restricted class vocabulary and the high costs associated with annotating new object classes. Our exploration of…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Djamahl Etchegaray , Zi Huang , Tatsuya Harada , Yadan Luo

Compound flows consist of two or more parallel compressible streams in a duct and their theoretical treatment has gained attention for the analysis and modelling of ejectors. Recent works have shown that these flows can experience choking…

Fluid Dynamics · Physics 2024-12-04 Jan Van den Berghe , Miguel Alfonso Mendez , Yann Bartosiewicz

Accurate tooth volume segmentation is a prerequisite for computer-aided dental analysis. Deep learning-based tooth segmentation methods have achieved satisfying performances but require a large quantity of tooth data with ground truth. The…

Image and Video Processing · Electrical Eng. & Systems 2022-08-04 Weiwei Cui , Yaqi Wang , Yilong Li , Dan Song , Xingyong Zuo , Jiaojiao Wang , Yifan Zhang , Huiyu Zhou , Bung san Chong , Liaoyuan Zeng , Qianni Zhang

Humans can easily identify anatomical planes (axial, coronal, and sagittal) on a 2D MRI slice, but automated systems struggle with this task. Missing plane orientation metadata can complicate analysis, increase domain shift when merging…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 SangHyuk Kim , Daniel Haehn , Sumientra Rampersad

Inspired by the classical fractional cascading technique, we introduce new techniques to speed up the following type of iterated search in 3D: The input is a graph $\mathbf{G}$ with bounded degree together with a set $H_v$ of 3D hyperplanes…

Computational Geometry · Computer Science 2025-04-11 Peyman Afshani , Yakov Nekrich , Frank Staals

This paper proposes an efficient and probabilistic adaptive voxel mapping method for LiDAR odometry. The map is a collection of voxels; each contains one plane (or edge) feature that enables the probabilistic representation of the…

Robotics · Computer Science 2022-07-11 Chongjian Yuan , Wei xu , Xiyuan Liu , Xiaoping Hong , Fu Zhang

Flow field segmentation and classification help researchers to understand vortex structure and thus turbulent flow. Existing deep learning methods mainly based on global information and focused on 2D circumstance. Based on flow field…

Computer Vision and Pattern Recognition · Computer Science 2023-06-16 Xiaorui Bai , Wenyong Wang , Jun Zhang , Yueqing Wang , Yu Xiang

Learning to estimate 3D geometry in a single frame and optical flow from consecutive frames by watching unlabeled videos via deep convolutional network has made significant progress recently. Current state-of-the-art (SoTA) methods treat…

Computer Vision and Pattern Recognition · Computer Science 2019-07-12 Chenxu Luo , Zhenheng Yang , Peng Wang , Yang Wang , Wei Xu , Ram Nevatia , Alan Yuille

Optical coherence tomography (OCT) is a popular modality in ophthalmology and is also used intravascularly. Our interest in this work is OCT in the context of airway abnormalities in infants and children where the high resolution of OCT and…

Image and Video Processing · Electrical Eng. & Systems 2024-03-19 Yining Jiao , Amy Oldenburg , Yinghan Xu , Srikamal Soundararajan , Carlton Zdanski , Julia Kimbell , Marc Niethammer

Conventional image motion based structure from motion methods first compute optical flow, then solve for the 3D motion parameters based on the epipolar constraint, and finally recover the 3D geometry of the scene. However, errors in optical…

Computer Vision and Pattern Recognition · Computer Science 2018-05-18 Francisco Barranco , Cornelia Fermüller , Yiannis Aloimonos , Eduardo Ros

Recent advances in 3D X-ray Computed Tomographic (CT) sensors have stimulated research efforts to unveil the extremely complex micro-scale processes that control the activity of soil microorganisms. Voxel-based description (up to hundreds…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Olivier Monga , Zakaria Belghali , Mouad Klai , Lucie Druoton , Dominique Michelucci , Valerie Pot

Monocular depth prediction plays a crucial role in understanding 3D scene geometry. Although recent methods have achieved impressive progress in evaluation metrics such as the pixel-wise relative error, most methods neglect the geometric…

Computer Vision and Pattern Recognition · Computer Science 2019-08-02 Wei Yin , Yifan Liu , Chunhua Shen , Youliang Yan

Accurate quantification of pulmonary nodules can greatly assist the early diagnosis of lung cancer, which can enhance patient survival possibilities. A number of nodule segmentation techniques have been proposed, however, all of the…

Image and Video Processing · Electrical Eng. & Systems 2020-02-04 Muhammad Usman , Byoung-Dai Lee , Shi Sub Byon , Sung Hyun Kim , Byung-ilLee

Permeability is a central concept in the macroscopic description of flow through porous media, with applications spanning from oil recovery to hydrology. Traditional methods for determining the permeability tensor involving flow simulations…

Fluid Dynamics · Physics 2025-12-02 Sigurd Vargdal , Paula Reis , Henrik Andersen Sveinsson , Gaute Linga

This is the technical report of the 9th place in the final result of PARSE2022 Challenge. We solve the segmentation problem of the pulmonary artery by using a two-stage method based on a 3D CNN network. The coarse model is used to locate…

Image and Video Processing · Electrical Eng. & Systems 2022-09-15 ZeYu Liu , Yi Wang , Jing Wen , Yong Zhang , Hao Yin , Chao Guo , ZhongYu Wang

Characteristics of Oscillating Flow in a Straight Tube with varying thickness of porous layer at the wall is studied. Results for two different porous layer is discussed and compared in terms of Velocity Profile, phase differences and…

Fluid Dynamics · Physics 2021-04-28 Pawan Kumar Pandey , Malay Kumar Das