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Segmentation of the aorta is crucial for various medical analyses, such as the diagnosis and treatment of cardiovascular diseases. This work presents mathematical models and methods yielding a semi-automatic segmentation of the aorta from…

Medical Physics · Physics 2025-11-17 Konan A. Allaly , Jozef Urban , Karol Mikula

Each grid block in a 3D geological model requires a rock type that represents all physical and chemical properties of that block. The properties that classify rock types are lithology, permeability, and capillary pressure. Scientists and…

Machine Learning · Computer Science 2022-01-06 Omar Alfarisi , Djamel Ouzzane , Mohamed Sassi , Tiejun Zhang

Analyzing flow of objects or data at different granularities of space and time can unveil interesting insights or trends. For example, transportation companies, by aggregating passenger travel data (e.g., counting passengers traveling from…

Databases · Computer Science 2025-12-22 Chrysanthi Kosyfaki , Nikos Mamoulis , Reynold Cheng , Ben Kao

Motion transfer from the driving to the source portrait remains a key challenge in the portrait animation. Current diffusion-based approaches condition only on the driving motion, which fails to capture source-to-driving correspondences and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Yating Xu , Yunqi Miao , Evangelos Ververas , Jiankang Deng , Jifei Song

We present an algorithm that automatically establishes dense correspondences between a large number of 3D faces. Starting from automatically detected sparse correspondences on the outer boundary of 3D faces, the algorithm triangulates…

Computer Vision and Pattern Recognition · Computer Science 2019-08-16 Syed Zulqarnain Gilani , Ajmal Mian , Faisal Shafait , Ian Reid

In order to increase the efficiency of phase retrieval,Wang proposed a high-speed moire phase retrieval method.But it is used only to measure the tiny object. In view of the limitation of Wang method,we proposed a dynamic three-dimensional…

Optics · Physics 2023-10-18 Canlin Zhou , Shuchun Si , XiaoLei Li , Zhenkun Lei , Yanjie Li , Chaorui Zhang

We consider a planar graph $G$ in which the edges have nonnegative integer lengths such that the length of every cycle of $G$ is even, and three faces are distinguished, called holes in $G$. It is known that there exists a packing of cuts…

Combinatorics · Mathematics 2018-03-20 Alexander V. Karzanov

Preprocessing a 2D image often produces a noisy cloud of interest points. We study the problem of counting holes in unorganized clouds in the plane. The holes in a given cloud are quantified by the topological persistence of their boundary…

Computational Geometry · Computer Science 2016-11-18 Vitaliy Kurlin

Tomography aims to recover a three-dimensional (3D) density map of a medium or an object. In medical imaging, it is extensively used for diagnostics via X-ray computed tomography (CT). Optical diffusion tomography is an alternative to X-ray…

Computational Physics · Physics 2020-05-26 Aviad Levis , Yoav Y. Schechner , Anthony B. Davis , Jesse Loveridge

Modes and ridges of the probability density function behind observed data are useful geometric features. Mode-seeking clustering assigns cluster labels by associating data samples with the nearest modes, and estimation of density ridges…

Machine Learning · Statistics 2018-04-03 Hiroaki Sasaki , Takafumi Kanamori , Aapo Hyvärinen , Gang Niu , Masashi Sugiyama

Approximate convex decomposition aims to decompose a 3D shape into a set of almost convex components, whose convex hulls can then be used to represent the input shape. It thus enables efficient geometry processing algorithms specifically…

Graphics · Computer Science 2022-05-09 Xinyue Wei , Minghua Liu , Zhan Ling , Hao Su

We are concerned with the estimation of the exterior surface and interior summaries of tube-shaped anatomical structures. This interest is motivated by two distinct scientific goals, one dealing with the distribution of HIV microbicide in…

Applications · Statistics 2011-04-18 Jeff Goldsmith , Brian Caffo , Ciprian Crainiceanu , Daniel Reich , Yong Du , Craig Hendrix

Prompt routing dynamically selects the most appropriate large language model from a pool of candidates for each query, optimizing performance while managing costs. As model pools scale to include dozens of frontier models with narrow…

Computation and Language · Computer Science 2026-03-24 Yunyi Zhang , Soji Adeshina , Sheng Guan , Ashwin Ganesh , Zhen Han , Vassilis N. Ioannidis , Huzefa Rangwala , George Karypis

This paper proposes a novel adaptive algorithm to extract facial feature points automatically such as eyebrows corners, eyes corners, nostrils, nose tip, and mouth corners in frontal view faces, which is based on cumulative histogram…

Computer Vision and Pattern Recognition · Computer Science 2012-03-16 Sushil Kumar Paul , Mohammad Shorif Uddin , Saida Bouakaz

Modeling coupled systems of free flow adjacent to a porous medium by means of fully resolved Navier-Stokes equations is limited by the immense computational cost and is thus only feasible for relatively small domains. Model reduction allows…

Computational Physics · Physics 2019-08-07 Kilian Weishaupt , Alexandros Terzis , Ioannis Zarikos , Guang Yang , Matthijs de Winter , Rainer Helmig

Face Recognition systems (FRS) have been found to be vulnerable to morphing attacks, where the morphed face image is generated by blending the face images from contributory data subjects. This work presents a novel direction for generating…

Computer Vision and Pattern Recognition · Computer Science 2023-10-16 Jag Mohan Singh , Raghavendra Ramachandra

Up to now, researchers have applied segmentation techniques in their studies on teeth images, with construction on tooth root length and depth. In this paper, a new approach to the exact identification of the filled points of the tooth is…

Image and Video Processing · Electrical Eng. & Systems 2019-07-08 Zahra Alidousti , Maryam Taghizadeh Dehkordi

Visualizing colonoscopy is crucial for medical auxiliary diagnosis to prevent undetected polyps in areas that are not fully observed. Traditional feature-based and depth-based reconstruction approaches usually end up with undesirable…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Zhenhua Wu , Yanlin Jin , Liangdong Qiu , Xiaoguang Han , Xiang Wan , Guanbin Li

In high-noise environments such as factories, subways, and busy streets, capturing clear speech is challenging. Throat microphones can offer a solution because of their inherent noise-suppression capabilities; however, the passage of sound…

Sound · Computer Science 2026-04-23 Yunsik Kim , Yonghun Song , Yoonyoung Chung

This paper presents a novel approach to neural network compression that addresses redundancy at both the filter and architectural levels through a unified framework grounded in information flow analysis. Building on the concept of tensor…

Machine Learning · Computer Science 2025-11-26 Aleksei Samarin , Artem Nazarenko , Egor Kotenko , Valentin Malykh , Alexander Savelev , Aleksei Toropov