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Author: geraldine cheok
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Displaying records 11 to 20 of 82 records.
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11. Image-based 3D Mapping of Rebar Location for Automated Assessment of Safe Drilling Areas Prior to Placing Embedments in Concrete Bridge Decks
Published: 5/23/2012
Authors: Mani Golparvar-Fard, Behshad Ghadimi, Kamel Shawki Saidi, Geraldine S Cheok, Marek Franaszek, Robert R Lipman
Abstract: This paper presents a new image-based approach for 3D mapping the locations of the rebar and embedded components in a railway bridge deck prior to placement of concrete. Our approach enables practitioners to quickly and automatically identify where t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910289

12. Standard Test Procedures and Metrics Development for Automated Guided Vehicle Safety Standards
Published: 5/23/2012
Authors: Roger V Bostelman, William P Shackleford, Geraldine S Cheok, Richard J Norcross
Abstract: The National Institute of Standards and Technology's Intelligent Systems Division has been researching automated guided vehicle (AGV) control based on advanced two-dimensional (2D) imaging sensors that detect dynamic, standard test pieces represent ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910774

13. Augmenting BIM with 3D Imaging Data to Control Drilling for Embeds into Reinforced Concrete Bridge Decks
Published: 5/22/2012
Authors: Manu Akula, Robert R Lipman, Marek Franaszek, Kamel Shawki Saidi, Geraldine S Cheok, Vineet Kamat
Abstract: Placing embeds into reinforced concrete structures, after concrete is poured, without damaging reinforcement bars (rebar) is an industry-wide challenge encountered across the construction industry. In concrete structures such as containment vessels, ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910302

14. Phase III: Evaluation of an Acceptance Sampling Method for 2D/3D Building Plans (NISTIR 7659)
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7659
Published: 1/1/2012
Authors: Geraldine S Cheok, Marek Franaszek
Abstract: The General Services Administration (GSA) established the National 3D-4D-BIM (Three dimensional- Four Dimensional Building Information Model) Program in 2003. A part of the program involves 3D imaging, and the National Institute of Standards Technol ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904619

15. Development and Use of the NIST Intelligent and Automated Construction Job Site Testbed
Series: Technical Note (NIST TN)
Report Number: 1726
Published: 12/16/2011
Authors: Kamel Shawki Saidi, Geraldine S Cheok, Marek Franaszek, Christopher U Brown, Jeremy Swerdlow, Robert R Lipman, Itai Katz, Mani Golparvar-Fard, Paul Goodrum, Manu Akula, Gabriel Dadi, Behshad Ghadimi
Abstract: The Intelligent and Automated Construction Job Site (IACJS) Testbed is a large laboratory facility that was established at the National Institute of Standards and Technology (NIST) in 2011. The creation of the testbed was motivated by the need for su ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909841

16. Characterization of the Range Performance of a 3D Imaging System (NIST TN 1695)
Series: Technical Note (NIST TN)
Report Number: 1695
Published: 5/9/2011
Authors: Geraldine S Cheok, Kamel Shawki Saidi, Marek Franaszek, James J Filliben, Nicholas Scott
Abstract: A 3D imaging instrument is a non-contact measurement instrument used to rapidly obtain 3D information about a scene or object. The use of and the applications for these instruments have grown tremendously in the last decade. The expanded use of 3D ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908198

17. 3D Imaging Systems for Manufacturing, Construction, and Mobility (NIST TN 1682)
Series: Technical Note (NIST TN)
Report Number: 1682
Published: 12/15/2010
Authors: Geraldine S Cheok, Maris Juberts, Marek Franaszek
Abstract: The National Defense Center of Excellence for Industrial Metrology and 3D Imaging (COE-IM3DI) is conducting research to enable the next generation of manufacturing-centric human/instrument/machine interaction. The generalized goal of the COE-IM3DI r ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907367

18. Assessing Technology Gaps for the Federal Highway Administration Digital Highway Measurement Program (NISTIR 7685)
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7685
Published: 4/1/2010
Authors: Geraldine S Cheok, Marek Franaszek, Itai Katz, Alan M. (Alan M.) Lytle, Kamel Shawki Saidi, Nicholas A. Scott
Abstract: The ability to automatically collect more and better measurements of roadway assets (e.g., existence, condition, location, type) and to accurately map both geometry and elements of roadway assets is an important mitigating factor in roadway safety. T ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905154

19. Proceedings of the GSA 3D Imaging Workshop, February 28, 2011 (NIST TN 1699)
Series: Technical Note (NIST TN)
Report Number: 1699
Published: 12/9/2009
Authors: Geraldine S Cheok, Marek Franaszek, Kamel Shawki Saidi
Abstract: The General Services Administration (GSA) has been involved in 3D imaging since the early 2000s. Since 3D imaging was a relatively new technology at that time, GSA needed to develop and provide initial guidance to their project managers (PMs) on 3D i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908607

20. Evaluation of an Acceptance Sampling Method for 2D/3D Building Plans Derived from 3D Imaging Data
Published: 12/1/2009
Authors: Geraldine S Cheok, Marek Franaszek, James J Filliben
Abstract: An acceptance sampling method, based on obtaining physical measurements, for accepting 2D building plans generated from 3D imaging data is evaluated and demonstrated using an actual GSA (General Services Administration) facility. The objective of th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907878



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