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Paper Abstract and Keywords
Presentation 2026-04-09 15:10
[Invited Talk] Urban Digital Twin Construction via 3D Mobile Crowdsensing
Taku Yamazaki, Takumi Miyoshi (Shibaura Inst. Tech.) NS2026-10
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we present an overview of a 3D mobile crowdsensing (3D-MCS) framework, including its key component technologies, current implementation, and ongoing development status, for continuously maintaining an urban digital twin (UDT) by collecting point clouds as spatial information through the cooperation of people in urban environments. The 3D-MCS framework consists of the following core technologies: (1) spatial sensing that combines active and passive models, (2) spatial information management based on geocoding, and (3) dynamic point cloud integration into the UDT. In addition, the framework enables real-time web-based visualization of spatial information. In addition to these technologies, we discuss several extensions of the 3D-MCS framework, including age of information (AoI)-aware sensing, selective point cloud transmission based on AoI to reduce communication overhead, spatial information management incorporating edge-cloud collaboration for UDT updating and distribution, and multi-hypothesis UDT construction. In the multi-hypothesis UDT construction, a UDT constructed through a specific procedure is treated as a hypothesis, and multiple construction hypotheses are maintained in parallel to suppress erroneous UDT formation. Finally, we outline future research directions.
Keyword (in Japanese) (See Japanese page) 
(in English) Smart city / Urban digital twin / LiDAR / Point cloud / Moble crowdsensing / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 2, NS2026-10, pp. 52-57, April 2026.
Paper # NS2026-10 
Date of Issue 2026-04-02 (NS) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF NS2026-10

Conference Information
Committee NS  
Conference Date 2026-04-09 - 2026-04-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Yakushima Island Environmental and Cultural Village Center + Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Communication traffic theory, Traffic and quality evaluation, Network performance evaluation, QoS/QoE, Reliability and robustness, Traffic and quality management, AI and machine learning, Network and system operation management, High capacity, low latency, many connections, General 
Paper Information
Registration To NS 
Conference Code 2026-04-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Urban Digital Twin Construction via 3D Mobile Crowdsensing 
Sub Title (in English)  
Keyword(1) Smart city  
Keyword(2) Urban digital twin  
Keyword(3) LiDAR  
Keyword(4) Point cloud  
Keyword(5) Moble crowdsensing  
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1st Author's Name Taku Yamazaki  
1st Author's Affiliation Shibaura Institute of Technology (Shibaura Inst. Tech.)
2nd Author's Name Takumi Miyoshi  
2nd Author's Affiliation Shibaura Institute of Technology (Shibaura Inst. Tech.)
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Speaker Author-1 
Date Time 2026-04-09 15:10:00 
Presentation Time 45 minutes 
Registration for NS 
Paper # NS2026-10 
Volume (vol) vol.126 
Number (no) no.2 
Page pp.52-57 
#Pages 6 
Date of Issue 2026-04-02 (NS) 

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