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Automatic 3D reconstruction of indoor spaces from 2D floor plans necessitates high-precision semantic segmentation of structural elements, particularly walls. However, existing methods often struggle with detecting thin structures and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Dmitriy Parashchuk , Alexey Kaspshitskiy , Yuriy Karyakin

The ultimate goal of this indoor mapping research is to automatically reconstruct a floorplan simply by walking through a house with a smartphone in a pocket. This paper tackles this problem by proposing FloorNet, a novel deep neural…

Computer Vision and Pattern Recognition · Computer Science 2018-04-03 Chen Liu , Jiaye Wu , Yasutaka Furukawa

We address 2D floorplan reconstruction from 3D scans. Existing approaches typically employ heuristically designed multi-stage pipelines. Instead, we formulate floorplan reconstruction as a single-stage structured prediction task: find a…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Yuanwen Yue , Theodora Kontogianni , Konrad Schindler , Francis Engelmann

This study explores the use of a digital twin model and deep learning method to build a global terrain and altitude map based on USGS information. The goal is to artistically represent various landforms while incorporating precise elevation…

Image and Video Processing · Electrical Eng. & Systems 2023-05-25 Mohsen Ahmadi , Ahmad Gholizadeh Lonbar , Mohammadsadegh Nouri , Amir Sharifzadeh Javidi , Ali Tarlani Beris , Abbas Sharifi , Ali Salimi-Tarazouj

Digitalization of existing buildings and the creation of 3D BIM models for them has become crucial for many tasks. Of particular importance are floor plans, which contain information about building layouts and are vital for processes such…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Aleixo Cambeiro Barreiro , Mariusz Trzeciakiewicz , Anna Hilsmann , Peter Eisert

The recognition of information in floor plan data requires the use of detection and segmentation models. However, relying on several single-task models can result in ineffective utilization of relevant information when there are multiple…

Computer Vision and Pattern Recognition · Computer Science 2023-09-04 Lingxiao Huang , Jung-Hsuan Wu , Chiching Wei , Wilson Li

Building Information Modeling (BIM) technology is a key component of modern construction engineering and project management workflows. As-is BIM models that represent the spatial reality of a project site can offer crucial information to…

Computer Vision and Pattern Recognition · Computer Science 2023-05-26 Seongyong Kim , Yosuke Yajima , Jisoo Park , Jingdao Chen , Yong K. Cho

Recognition of floor plans has been a challenging and popular task. Despite that many recent approaches have been proposed for this task, they typically fail to make the room-level unified prediction. Specifically, multiple semantic…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Zhangyu Wang , Ningyuan Sun

Urban digital twins are virtual replicas of cities that use multi-source data and data analytics to optimize urban planning, infrastructure management, and decision-making. Towards this, we propose a framework focused on the single-building…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Kyle Gao , Dening Lu , Liangzhi Li , Nan Chen , Hongjie He , Linlin Xu , Jonathan Li

Urban Digital Twins (UDTs) have become essential for managing cities and integrating complex, heterogeneous data from diverse sources. Creating UDTs involves challenges at multiple process stages, including acquiring accurate 3D source…

In this paper, we introduce a novel method called FRI-Net for 2D floorplan reconstruction from 3D point cloud. Existing methods typically rely on corner regression or box regression, which lack consideration for the global shapes of rooms.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Honghao Xu , Juzhan Xu , Zeyu Huang , Pengfei Xu , Hui Huang , Ruizhen Hu

Urban buildings are extracted from high-resolution Earth observation (EO) images using semantic segmentation networks like U-Net and its successors. Each re-iteration aims to improve performance by employing a denser skip connection…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Bipul Neupane , Jagannath Aryal , Abbas Rajabifard

Processing large indoor scenes is a challenging task, as scan registration and camera trajectory estimation methods accumulate errors across time. As a result, the quality of reconstructed scans is insufficient for some applications, such…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Anna Sokolova , Filipp Nikitin , Anna Vorontsova , Anton Konushin

The development of Digital Twins (DTs) represents a transformative advance for simulating and optimizing complex systems in a controlled digital space. Despite their potential, the challenge of constructing DTs that accurately replicate and…

Systems and Control · Electrical Eng. & Systems 2024-06-21 Longfei Ma , Nan Cheng , Xiucheng Wang , Jiong Chen , Yinjun Gao , Dongxiao Zhang , Jun-Jie Zhang

Recent advances in radiance fields and novel view synthesis enable creation of realistic digital twins from photographs. However, current methods struggle with flat, texture-less surfaces, creating uneven and semi-transparent…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Maria Taktasheva , Lily Goli , Alessandro Fiorini , Zhen Li , Daniel Rebain , Andrea Tagliasacchi

Reticular structures form the backbone of major infrastructure like bridges, pylons, and airports, but their inspection and maintenance are costly and hazardous, often requiring human intervention. While prior research has focused on fault…

This paper presents a new approach to recognize elements in floor plan layouts. Besides walls and rooms, we aim to recognize diverse floor plan elements, such as doors, windows and different types of rooms, in the floor layouts. To this…

Computer Vision and Pattern Recognition · Computer Science 2019-08-30 Zhiliang Zeng , Xianzhi Li , Ying Kin Yu , Chi-Wing Fu

Piece-wise 3D planar reconstruction provides holistic scene understanding of man-made environments, especially for indoor scenarios. Most recent approaches focused on improving the segmentation and reconstruction results by introducing…

Computer Vision and Pattern Recognition · Computer Science 2022-02-01 Yaxu Xie , Fangwen Shu , Jason Rambach , Alain Pagani , Didier Stricker

Developing methods to understand and control defect formation in nanomaterials offers a promising route for materials discovery. Monolayer MX2 phases represent a particularly compelling case for defect engineering of nanomaterials due to…

Materials Science · Physics 2023-05-05 Addis S. Fuhr , Panchapakesan Ganesh , Rama K. Vasudevan , Bobby G. Sumpter

Since NASA put forward the concept of the digital twin in 2010, many industries have put forward the dynamic goal of digital development, and the transportation industry is also among them. With more and more companies laying out on this…

Computer Vision and Pattern Recognition · Computer Science 2023-10-24 Zhanyuan Tian , Tianrui Zhu , Zerui Tian , Zhen Dong
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