S&M Young Researcher Paper Award 2020
Recipients: Ding Jiao, Zao Ni, Jiachou Wang, and Xinxin Li [Winner's comments]
Paper: High Fill Factor Array of Piezoelectric Micromachined
Ultrasonic Transducers with Large Quality Factor

S&M Young Researcher Paper Award 2021
Award Criteria
Notice of retraction
Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.

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Repositioning Technique Based on 3D Model Using a Building Shape Registration Algorithm

Jihun Kang, Jaehee Lee, Hongsik Yun, and Seungjun Lee

(Received August 25, 2021; Accepted November 16, 2021)

Keywords: unmanned aerial vehicle, building shape registration, spatial data, 3D model, position correction

The demand for 3D spatial data and effective dataset construction has been increasing. However, the construction of 3D spatial datasets is more time-consuming and costlier than that of 2D spatial data. In addition, maintaining 3D city models up to date long after their initial construction is difficult. In this study we developed a method of updating 3D building information within a relatively short timeframe using highly accurate 2D building information. This method can be used to correct 3D building information automatically. Unmanned aerial vehicle imagery of the study area was obtained, and a 3D model was developed using commercial software. Subsequently, the 3D model information was mapped onto the 2D information. After transforming the paired objects into point data at a set interval, registration parameters were calculated by applying the iterative closest-point technique. The calculated parameters were used to reposition the 3D model, enabling the creation of a model that overlaps with more than 98% of the existing spatial information data. Thus, it was confirmed that 3D building models can be produced without ground control points and can be readily updated at low cost.

Corresponding author: Seungjun Lee

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