Computer-Aided Civil and Infrastructure Engineering

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Development of Recurrent Neural Network Considering Temporal‐Spatial Input Dynamics for Freeway Travel Time Modeling
Computer-Aided Civil and Infrastructure Engineering - Tập 28 Số 5 - Trang 359-371 - 2013
Xiaosi Zeng, Yunlong Zhang
Abstract:  The artificial neural network (ANN) is one advance approach to freeway travel time prediction. Various studies using different inputs have come to no consensus on the effects of input selections. In addition, very little discussion has been made on the temporal–spatial aspect of the ANN travel time prediction process. In this study, we employ...... hiện toàn bộ
A Modified Iterative Closest Point Algorithm for 3D Point Cloud Registration
Computer-Aided Civil and Infrastructure Engineering - Tập 31 Số 7 - Trang 515-534 - 2016
Roberto Marani, Vito Renò, Massimiliano Nitti, Tiziana D’Orazio, Ettore Stella
AbstractIn this article, an accurate method for the registration of point clouds returned by a 3D rangefinder is presented. The method modifies the well‐known iterative closest point (ICP) algorithm by introducing the concept of deletion mask. This term is defined starting from virtual scans of the reconstructed surfaces and using inconsistencies between measuremen...... hiện toàn bộ
Deep Learning‐Based Crack Damage Detection Using Convolutional Neural Networks
Computer-Aided Civil and Infrastructure Engineering - Tập 32 Số 5 - Trang 361-378 - 2017
Young‐Jin Cha, Wooram Choi, Oral Büyüköztürk
AbstractA number of image processing techniques (IPTs) have been implemented for detecting civil infrastructure defects to partially replace human‐conducted onsite inspections. These IPTs are primarily used to manipulate images to extract defect features, such as cracks in concrete and steel surfaces. However, the extensively varying real‐world situations (e.g., li...... hiện toàn bộ
Development of an Accurate Positioning System Using Low-Cost L1 GPS Receivers
Computer-Aided Civil and Infrastructure Engineering - Tập 21 Số 4 - Trang 258-267 - 2006
Masayuki Saeki, Muneo Hori
Simulation of Accuracy Performance for Wireless Sensor‐Based Construction Asset Tracking
Computer-Aided Civil and Infrastructure Engineering - Tập 24 Số 5 - Trang 335-345 - 2009
Mirosław J. Skibniewski, Won‐Suk Jang
Abstract:  Today's mobile and remote construction applications, such as tracking of materials, equipment, and workers, demand high reliability and scalability of wireless sensor networks for a large‐scale construction site. In particular, identifying the location of distributed mobile entities throughout wireless communications becomes the primary task ...... hiện toàn bộ
Automated Modeling of Three-Dimensional Structural Components Using Irregular Lattices
Computer-Aided Civil and Infrastructure Engineering - Tập 20 Số 6 - Trang 393-407 - 2005
Mien Yip, Jon Mohle, John E. Bolander
A Study on the Effects of Damage Models and Wavelet Bases for Damage Identification and Calibration in Beams
Computer-Aided Civil and Infrastructure Engineering - Tập 22 Số 8 - Trang 555-569 - 2007
Vikram Pakrashi, Alan O’Connor, Biswajit Basu
Abstract:  Damage detection and calibration in beams by wavelet analysis involve some key factors such as the damage model, the choice of the wavelet function, the effects of windowing, and the effects of masking due to the presence of noise during measurement. A numerical study has been performed in this article addressing these issues for single and m...... hiện toàn bộ
Combining an Angle Criterion with Voxelization and the Flying Voxel Method in Reconstructing Building Models from LiDAR Data
Computer-Aided Civil and Infrastructure Engineering - Tập 28 Số 2 - Trang 112-129 - 2013
Linh Truong‐Hong, Debra F. Laefer, Tommy Hinks, Hamish Carr
Abstract:  Traditional documentation capabilities of laser scanning technology can be further exploited for urban modeling through the transformation of resulting point clouds into solid models compatible for computational analysis. This article introduces such a technique through the combination of an angle criterion and voxelization. As part of that, ...... hiện toàn bộ
Non‐Uniform B‐Spline Surface Fitting from Unordered 3D Point Clouds for As‐Built Modeling
Computer-Aided Civil and Infrastructure Engineering - Tập 31 Số 7 - Trang 483-498 - 2016
Andrey Dimitrov, Rongqi Gu, Mani Golparvar‐Fard
AbstractThe three‐dimensional mapping of the built environment is of particular importance for engineering applications such as monitoring work‐in‐progress and energy performance simulation. The state‐of‐the‐art methods for fitting primitives, non‐uniform B‐Spline surface (NURBS) and solid geometry to point clouds still fail to account for all the topological varia...... hiện toàn bộ
Optimal Long‐Term Infrastructure Maintenance Planning Accounting for Traffic Dynamics
Computer-Aided Civil and Infrastructure Engineering - Tập 24 Số 7 - Trang 459-469 - 2009
ManWo Ng, Dung-Ying Lin, S. Travis Waller
Abstract:  Periodic infrastructure maintenance is crucial for a safe and efficient transportation system. Numerous decision models for the maintenance planning problem have been proposed in the literature. However, to the best of our knowledge, no model exists that simultaneously accounts for traffic dynamics and is intended for long‐term planning purpo...... hiện toàn bộ
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