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The structural analysis of shape boundaries leads to the characterization of objects as well as to the understanding of shape properties. The literature on graphs and networks have contributed to the structural characterization of shapes…

Computer Vision and Pattern Recognition · Computer Science 2017-11-15 Gisele H. B. Miranda , Jeaneth Machicao , Odemir M. Bruno

Image Segmentation has been an active field of research as it has a wide range of applications, ranging from automated disease detection to self-driving cars. In recent years, various research papers proposed different loss functions used…

Machine Learning · Computer Science 2021-06-11 Shruti Jadon

This paper describes a geometry based technique for feature extraction applicable to segmentation-based word recognition systems. The proposed system extracts the geometric features of the character contour. This features are based on the…

Computer Vision and Pattern Recognition · Computer Science 2015-03-13 Dinesh Dileep Gaurav , Renu Ramesh

The pelvis, the lower part of the trunk, supports and balances the trunk. Landmark detection from a pelvic X-ray (PXR) facilitates downstream analysis and computer-assisted diagnosis and treatment of pelvic diseases. Although PXRs have the…

Image and Video Processing · Electrical Eng. & Systems 2023-06-08 Zhen Huang , Han Li , Shitong Shao , Heqin Zhu , Huijie Hu , Zhiwei Cheng , Jianji Wang , S. Kevin Zhou

Epidemiology characterizes the influence of causes to disease and health conditions of defined populations. Cohort studies are population-based studies involving usually large numbers of randomly selected individuals and comprising numerous…

Computer Vision and Pattern Recognition · Computer Science 2015-01-19 Bernhard Preim , Paul Klemm , Helwig Hauser , Katrin Hegenscheid , Steffen Oeltze , Klaus Toennies , Henry Völzke

Universal medical image segmentation seeks to use a single foundational model to handle diverse tasks across multiple imaging modalities. However, existing approaches often rely heavily on manual visual prompts or retrieved reference…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Haoyun Chen , Fenghe Tang , Wenxin Ma , Shaohua Kevin Zhou

We study the problem of shape generation in 3D mesh representation from a small number of color images with or without camera poses. While many previous works learn to hallucinate the shape directly from priors, we adopt to further improve…

Computer Vision and Pattern Recognition · Computer Science 2022-04-22 Chao Wen , Yinda Zhang , Chenjie Cao , Zhuwen Li , Xiangyang Xue , Yanwei Fu

Deep Learning (DL) models have been successfully applied to many applications including biomedical cell segmentation and classification in histological images. These models require large amounts of annotated data which might not always be…

Image and Video Processing · Electrical Eng. & Systems 2024-06-04 Roberto Basla , Loris Giulivi , Luca Magri , Giacomo Boracchi

We present an innovative method called FilExSeC (Filaments Extraction, Selection and Classification), a data mining tool developed to investigate the possibility to refine and optimize the shape reconstruction of filamentary structures…

Anatomy shape modeling is a fundamental problem in medical data analysis. However, the geometric complexity and topological variability of anatomical structures pose significant challenges to accurate anatomical shape generation. In this…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Guoqing Zhang , Jingyun Yang , Siqi Chen , Anping Zhang , Yang Li

Pathology foundation models (PFMs) have rapidly advanced and are becoming a common backbone for downstream clinical tasks, offering strong transferability across tissues and institutions. However, for dense prediction (e.g., segmentation),…

Image and Video Processing · Electrical Eng. & Systems 2026-02-05 Weiming Chen , Xitong Ling , Xidong Wang , Zhenyang Cai , Yijia Guo , Mingxi Fu , Ziyi Zeng , Minxi Ouyang , Jiawen Li , Yizhi Wang , Tian Guan , Benyou Wang , Yonghong He

Computer simulation has become one of the most important tools in scientific research in many disciplines. Benefiting from the dynamical trajectories regulated by versatile interatomic interactions, various material properties can be…

Materials Science · Physics 2024-11-28 Y. -C. Hu , J. Tian

Point clouds and polygonal meshes are widely used when modeling real-world scenarios. Here, point clouds arise, for instance, from acquisition processes applied in various surroundings, such as reverse engineering, rapid prototyping, or…

Computational Geometry · Computer Science 2025-11-24 Henriette Lipschütz , Ulrich Reitebuch , Konrad Polthier , Martin Skrodzki

We propose, analyze and realize a variational multiclass segmentation scheme that partitions a given image into multiple regions exhibiting specific properties. Our method determines multiple functions that encode the segmentation regions…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Nadja Gruber , Johannes Schwab , Sebastien Court , Elke Gizewski , Markus Haltmeier

Studying facial expressions is a notoriously difficult endeavor. Recent advances in the field of affective computing have yielded impressive progress in automatically detecting facial expressions from pictures and videos. However, much of…

Computer Vision and Pattern Recognition · Computer Science 2023-03-09 Jin Hyun Cheong , Eshin Jolly , Tiankang Xie , Sophie Byrne , Matthew Kenney , Luke J. Chang

Partial Differential Equations (PDEs) have long been recognized as powerful tools for image processing and analysis, providing a framework to model and exploit structural and geometric properties inherent in visual data. Over the years,…

Image and Video Processing · Electrical Eng. & Systems 2024-12-17 Alejandro Garnung Menéndez

The objective of this paper is to significantly reduce the manual workload required from medical professionals in complex 3D segmentation tasks that cannot be yet fully automated. For instance, in radiotherapy planning, organs at risk must…

3-D shape is important to chemistry, but how important? Machine learning works best when the inputs are simple and match the problem well. Chemistry datasets tend to be very small compared to those generally used in machine learning so we…

Machine Learning · Computer Science 2023-04-18 Ella Gale

Explaining time series classification models is crucial, particularly in high-stakes applications such as healthcare and finance, where transparency and trust play a critical role. Although numerous time series classification methods have…

Machine Learning · Computer Science 2025-10-28 Bosong Huang , Ming Jin , Yuxuan Liang , Johan Barthelemy , Debo Cheng , Qingsong Wen , Chenghao Liu , Shirui Pan

In recent years, data-driven models have enabled significant advances in medicine. Simultaneously, voice has shown potential for analysis in precision medicine as a biomarker for screening illnesses. There has been a growing trend to pursue…

Audio and Speech Processing · Electrical Eng. & Systems 2019-06-20 Larry Zhang , Xiaotong Chen , Abbad Vakil , Ali Byott , Reza Hosseini Ghomi