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Semantic segmentation of large-scale 3D point clouds is crucial for applications such as autonomous driving and urban digital twins. However, the sparse sampling pattern of LiDAR and the view-dependent geometric distortion in image…

Computer Vision and Pattern Recognition · Computer Science 2026-05-11 Shuai Zhang , Zhecheng Shi , Zhuxiao Li , Jing Ou , Tengxi Wang , Yuan Liu , Wufan Zhao

Fueled by recent advances in machine learning, there has been tremendous progress in the field of semantic segmentation for the medical image computing community. However, developed algorithms are often optimized and validated by hand based…

Image and Video Processing · Electrical Eng. & Systems 2020-05-21 Oliver Rippel , Leon Weninger , Dorit Merhof

Segmentation of overlapping convex objects has various applications, for example, in nanoparticles and cell imaging. Often the segmentation method has to rely purely on edges between the background and foreground making the analyzed images…

Computer Vision and Pattern Recognition · Computer Science 2019-06-05 Sahar Zafari , Mariia Murashkina , Tuomas Eerola , Jouni Sampo , Heikki Kälviäinen , Heikki Haario

Accurate multi-class tubular modeling is critical for precise lesion localization and optimal treatment planning. Deep learning methods enable automated shape modeling by prioritizing volumetric overlap accuracy. However, the inherent…

Image and Video Processing · Electrical Eng. & Systems 2025-06-17 Minghui Zhang , Yaoyu Liu , Xin You , Hanxiao Zhang , Yun Gu

3D part segmentation is a crucial and challenging task in 3D perception, playing a vital role in applications such as robotics, 3D generation, and 3D editing. Recent methods harness the powerful Vision Language Models (VLMs) for 2D-to-3D…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Yunhan Yang , Yukun Huang , Yuan-Chen Guo , Liangjun Lu , Xiaoyang Wu , Edmund Y. Lam , Yan-Pei Cao , Xihui Liu

Vessel segmentation and centerline extraction are two crucial preliminary tasks for many computer-aided diagnosis tools dealing with vascular diseases. Recently, deep-learning based methods have been widely applied to these tasks. However,…

Image and Video Processing · Electrical Eng. & Systems 2024-02-23 Pierre Rougé , Nicolas Passat , Odyssée Merveille

This work introduces Structured 3D-SVD as a practical framework for the reconstruction, compression, and analysis of biological volumetric data. Inspired by the logic of matrix singular value decomposition (SVD), the proposed approach…

Image and Video Processing · Electrical Eng. & Systems 2026-04-21 Mario Aragonés Lozano , Oscar Romero , Antonio León

To fully understand the 3D context of a single image, a visual system must be able to segment both the visible and occluded regions of objects, while discerning their occlusion order. Ideally, the system should be able to handle any object…

Computer Vision and Pattern Recognition · Computer Science 2024-05-10 Jiayang Ao , Qiuhong Ke , Krista A. Ehinger

Parts represent a basic unit of geometric and semantic similarity across different objects. We argue that part knowledge should be composable beyond the observed object classes. Towards this, we present 3D Compositional Zero-shot Learning…

Computer Vision and Pattern Recognition · Computer Science 2022-04-18 Muhammad Ferjad Naeem , Evin Pınar Örnek , Yongqin Xian , Luc Van Gool , Federico Tombari

This paper proposes a new framework for semantic segmentation of objects in videos. We address the label inconsistency problem of deep convolutional neural networks (DCNNs) by exploiting the fact that videos have multiple frames; in a few…

Computer Vision and Pattern Recognition · Computer Science 2017-11-23 Seong-Jin Park , Ki-Sang Hong

We present SeeingThroughClutter, a method for reconstructing structured 3D representations from single images by segmenting and modeling objects individually. Prior approaches rely on intermediate tasks such as semantic segmentation and…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Rio Aguina-Kang , Kevin James Blackburn-Matzen , Thibault Groueix , Vladimir Kim , Matheus Gadelha

With the thriving of deep learning, 3D Convolutional Neural Networks have become a popular choice in volumetric image analysis due to their impressive 3D contexts mining ability. However, the 3D convolutional kernels will introduce a…

Computer Vision and Pattern Recognition · Computer Science 2019-05-22 Lei Qu , Changfeng Wu , Liang Zou

The problem of decomposing non-manifold object has already been studied in solid modeling. However, the few proposed solutions are limited to the problem of decomposing solids described through their boundaries. In this thesis we study the…

Graphics · Computer Science 2019-04-03 Franco Morando

An algorithm is developed to compute the complete CS decomposition (CSD) of a partitioned unitary matrix. Although the existence of the CSD has been recognized since 1977, prior algorithms compute only a reduced version (the 2-by-1 CSD)…

Numerical Analysis · Mathematics 2008-05-19 Brian D. Sutton

The topic of semantic segmentation has witnessed considerable progress due to the powerful features learned by convolutional neural networks (CNNs). The current leading approaches for semantic segmentation exploit shape information by…

Computer Vision and Pattern Recognition · Computer Science 2016-11-18 Jifeng Dai , Kaiming He , Jian Sun

Supervised 3D part segmentation models are tailored for a fixed set of objects and parts, limiting their transferability to open-set, real-world scenarios. Recent works have explored vision-language models (VLMs) as a promising alternative,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-09 Marco Garosi , Riccardo Tedoldi , Davide Boscaini , Massimiliano Mancini , Nicu Sebe , Fabio Poiesi

This work presents the application of the Complex Orthogonal Decomposition (C.O.D.) to a simple spatio-temporal signal. C.O.D. has been introduced rst in the article of B. Feeny, entitled "A Complex Orthogonal Decomposition for Wave Motion…

Signal Processing · Electrical Eng. & Systems 2026-04-16 Marc Vacher , Stéphane Perrard , Sophie Ramananarivo

This paper presents a method for improved analysis of objects with an axial symmetry using X-ray Computed Tomography (CT). Cylindrical coordinates about an axis fixed to the object form the most natural base to check certain characteristics…

Image and Video Processing · Electrical Eng. & Systems 2020-10-06 Wannes Goethals , Marjolein Heyndrickx , Matthieu Boone

Object recognition has seen significant progress in the image domain, with focus primarily on 2D perception. We propose to leverage existing large-scale datasets of 3D models to understand the underlying 3D structure of objects seen in an…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Weicheng Kuo , Anelia Angelova , Tsung-Yi Lin , Angela Dai

Feature extraction for tensor data serves as an important step in many tasks such as anomaly detection, process monitoring, image classification, and quality control. Although many methods have been proposed for tensor feature extraction,…

Machine Learning · Computer Science 2021-06-01 Yinan Wang , Weihong "Grace" Guo , Xiaowei Yue