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Related papers: SUM: A Benchmark Dataset of Semantic Urban Meshes

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Semantic segmentation in urban scene analysis has mainly focused on images or point clouds, while textured meshes - offering richer spatial representation - remain underexplored. This paper introduces SUM Parts, the first large-scale…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Weixiao Gao , Liangliang Nan , Hugo Ledoux

Models for semantic segmentation require a large amount of hand-labeled training data which is costly and time-consuming to produce. For this purpose, we present a label fusion framework that is capable of improving semantic pixel labels of…

Computer Vision and Pattern Recognition · Computer Science 2022-02-25 Florian Fervers , Timo Breuer , Gregor Stachowiak , Sebastian Bullinger , Christoph Bodensteiner , Michael Arens

Textured meshes are becoming an increasingly popular representation combining the 3D geometry and radiometry of real scenes. However, semantic segmentation algorithms for urban mesh have been little investigated and do not exploit all…

Computer Vision and Pattern Recognition · Computer Science 2023-02-22 Grégoire Grzeczkowicz , Bruno Vallet

Textured 3D meshes jointly represent geometry, topology, and appearance, yet their irregular structure poses significant challenges for deep-learning-based semantic segmentation. While a few recent methods operate directly on meshes without…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Mohammadreza Heidarianbaei , Max Mehltretter , Franz Rottensteiner

An essential prerequisite for unleashing the potential of supervised deep learning algorithms in the area of 3D scene understanding is the availability of large-scale and richly annotated datasets. However, publicly available datasets are…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Qingyong Hu , Bo Yang , Sheikh Khalid , Wen Xiao , Niki Trigoni , Andrew Markham

3D semantic segmentation plays a critical role in urban modelling, enabling detailed understanding and mapping of city environments. In this paper, we introduce Turin3D: a new aerial LiDAR dataset for point cloud semantic segmentation…

Computer Vision and Pattern Recognition · Computer Science 2025-04-09 Luca Barco , Giacomo Blanco , Gaetano Chiriaco , Alessia Intini , Luigi La Riccia , Vittorio Scolamiero , Piero Boccardo , Paolo Garza , Fabrizio Dominici

Deployment of deep learning models in robotics as sensory information extractors can be a daunting task to handle, even using generic GPU cards. Here, we address three of its most prominent hurdles, namely, i) the adaptation of a single…

Computer Vision and Pattern Recognition · Computer Science 2019-02-28 Vladimir Nekrasov , Thanuja Dharmasiri , Andrew Spek , Tom Drummond , Chunhua Shen , Ian Reid

Visual understanding of complex urban street scenes is an enabling factor for a wide range of applications. Object detection has benefited enormously from large-scale datasets, especially in the context of deep learning. For semantic urban…

Computer Vision and Pattern Recognition · Computer Science 2016-04-08 Marius Cordts , Mohamed Omran , Sebastian Ramos , Timo Rehfeld , Markus Enzweiler , Rodrigo Benenson , Uwe Franke , Stefan Roth , Bernt Schiele

Semantic segmentation of large-scale outdoor point clouds is essential for urban scene understanding in various applications, especially autonomous driving and urban high-definition (HD) mapping. With rapid developments of mobile laser…

Computer Vision and Pattern Recognition · Computer Science 2020-11-17 Weikai Tan , Nannan Qin , Lingfei Ma , Ying Li , Jing Du , Guorong Cai , Ke Yang , Jonathan Li

We introduce a novel deep learning-based framework to interpret 3D urban scenes represented as textured meshes. Based on the observation that object boundaries typically align with the boundaries of planar regions, our framework achieves…

Computer Vision and Pattern Recognition · Computer Science 2022-12-27 Weixiao Gao , Liangliang Nan , Bas Boom , Hugo Ledoux

For best performance, today's semantic segmentation methods use large and carefully labeled datasets, requiring expensive annotation budgets. In this work, we show that coarse annotation is a low-cost but highly effective alternative for…

Computer Vision and Pattern Recognition · Computer Science 2022-12-16 Anurag Das , Yongqin Xian , Yang He , Zeynep Akata , Bernt Schiele

Semantic scene understanding is crucial for robotics and computer vision applications. In autonomous driving, 3D semantic segmentation plays an important role for enabling safe navigation. Despite significant advances in the field, the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Lucas Nunes , Rodrigo Marcuzzi , Jens Behley , Cyrill Stachniss

We introduce a new outdoor urban 3D pointcloud dataset, covering a total area of 2.7 $km^2$, sampled from three Swiss cities with different characteristics. The dataset is manually annotated for semantic segmentation with per-point labels,…

Computer Vision and Pattern Recognition · Computer Science 2020-12-25 Gülcan Can , Dario Mantegazza , Gabriele Abbate , Sébastien Chappuis , Alessandro Giusti

We introduce BuildingNet: (a) a large-scale dataset of 3D building models whose exteriors are consistently labeled, (b) a graph neural network that labels building meshes by analyzing spatial and structural relations of their geometric…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Pratheba Selvaraju , Mohamed Nabail , Marios Loizou , Maria Maslioukova , Melinos Averkiou , Andreas Andreou , Siddhartha Chaudhuri , Evangelos Kalogerakis

Many existing 3D semantic segmentation methods, deep learning in computer vision notably, claimed to achieve desired results on urban point clouds. Thus, it is significant to assess these methods quantitatively in diversified real-world…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Maosu Li , Yijie Wu , Anthony G. O. Yeh , Fan Xue

Semantic segmentation has emerged as a pivotal area of study in computer vision, offering profound implications for scene understanding and elevating human-machine interactions across various domains. While 2D semantic segmentation has…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Aditya Krishnan , Jayneel Vora , Prasant Mohapatra

Scene understanding is an important capability for robots acting in unstructured environments. While most SLAM approaches provide a geometrical representation of the scene, a semantic map is necessary for more complex interactions with the…

Computer Vision and Pattern Recognition · Computer Science 2019-06-18 Radu Alexandru Rosu , Jan Quenzel , Sven Behnke

Using deep learning, we now have the ability to create exceptionally good semantic segmentation systems; however, collecting the prerequisite pixel-wise annotations for training images remains expensive and time-consuming. Therefore, it…

Computer Vision and Pattern Recognition · Computer Science 2022-10-19 Aneesh Rangnekar , Christopher Kanan , Matthew Hoffman

With the recent availability and affordability of commercial depth sensors and 3D scanners, an increasing number of 3D (i.e., RGBD, point cloud) datasets have been publicized to facilitate research in 3D computer vision. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2022-01-13 Qingyong Hu , Bo Yang , Sheikh Khalid , Wen Xiao , Niki Trigoni , Andrew Markham

In this paper we describe an approach to semi-automatically create a labelled dataset for semantic segmentation of urban street-level point clouds. We use data fusion techniques using public data sources such as elevation data and…

Computer Vision and Pattern Recognition · Computer Science 2021-10-18 Daan Bloembergen , Chris Eijgenstein
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