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You searched on: Author: geraldine cheok

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1. Navigation Performance Evaluation for Automated Guided Vehicles
Published: 5/12/2015
Authors: Roger V Bostelman, Tsai Hong Hong, Geraldine S Cheok
Abstract: Automatic guided vehicles (AGVs), an industrial form of mobile robot, typically navigate using a central computer commanding AGV movement on predefined paths. Although, how well they follow these paths is less defined in research articles and their ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=918241

2. The Axes of Random Infinitesimal Rotations and the Propagation of Orientation Uncertainty
Published: 5/5/2015
Authors: Marek Franaszek, Mili Shah, Geraldine S Cheok, Kamel S Saidi
Abstract: Perception systems can measure the orientation of a solid 3D object; however, their measurements will contain some uncertainties. In many robotic applications, it is important to propagate the orientation uncertainties of a rigid object onto the unce ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914882

3. Laser scanner two-face errors on spherical targets
Published: 11/11/2014
Authors: Balasubramanian Muralikrishnan, Katharine M Shilling, Daniel S Sawyer, Prem Kumar Rachakonda, Vincent D Lee, Steven David Phillips, Geraldine S Cheok, Kamel S Saidi
Abstract: Geometric misalignments within the construction of a laser scanner such as offsets, tilts, and eccentricities, result in systematic errors in the measured point coordinates (range and angles). Many of these sources of error are sensitive to two-face ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=916435

4. Obstacle Detection and Avoidance from an Automated Guided Vehicle
Published: 9/18/2014
Authors: Roger V Bostelman, William P Shackleford, Geraldine S Cheok
Abstract: Current automated guided vehicle (AGV) technology typically provides material handling flow along single or dual opposing-flow lanes in manufacturing and distribution facilities. An AGV stops for most any obstacle that may be in its path which then ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915448

5. Towards a Classification System of Manufacturing Objects for the Evaluation of Perception Systems
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7985
Published: 2/27/2014
Authors: Geraldine S Cheok, Marek Franaszek, Afzal A Godil, Kamel S Saidi, Roger Eastman, Tsai Hong Hong
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915160

6. Nondestructive Testing (NDT) and Sensor Technology for Service Life Modeling of New and Existing Concrete Structures
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7974
Published: 12/18/2013
Authors: Kenneth Alan Snyder, Li Piin Sung, Geraldine S Cheok
Abstract: Nondestructive test (NDT) methods and sensor technologies are evaluated in the context of providing input parameters to service life prediction models for reinforced concrete structures. Relevant NDT methods and sensors are identified that are based ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914232

7. Proposed E57.02 Range Measurement Performance Standard for Medium Range 3D Imaging Systems
Published: 11/11/2013
Authors: David MacKinnon, Luc Cournoyer, Kamel S Saidi, Geraldine S Cheok, Robert Bridges, Darin Ingimarson
Abstract: We present the proposed standard ASTM E57.02 "Test Method to Evaluate the Range Measurement Performance of 3D Imaging Systems in the Medium Range" (Work Item ASTM WK12373). The stated purpose of the standard is to provide metrics and procedures to e ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914811

8. Real-Time Monitoring: Augmenting Building Information Modeling with 3D Imaging Data to Control Drilling for Embeds into Reinforced Concrete Bridge Decks
Published: 9/16/2013
Authors: Manu Akula, Robert R Lipman, Marek Franaszek, Geraldine S Cheok, Kamel S Saidi, Vineet Kamat
Abstract: A major contributing factor attributed to accidents in construction is the lack of hazard recognition due to limited visibility that characterizes construction projects. Real-time monitoring systems that utilize context aware computing techniques fac ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911737

9. Proposed E57.02 Range Measurement Performance Standard for Medium Range 3D Imaging Systems
Published: 7/26/2013
Authors: David MacKinnon, Luc Cournoyer, Kamel S Saidi, Geraldine S Cheok, Robert Bridges, Darin Ingimarson
Abstract: We present the proposed standard ASTM E57.02 "Test Method to Evaluate the Range Measurement Performance of 3D Imaging Systems in the Medium Range" (Work Item ASTM WK12373). The stated purpose of the standard is to provide metrics and procedures to ev ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913571

10. 3D Ground-Truth Systems for Object/Human Recognition and Tracking
Published: 6/28/2013
Authors: Afzal A Godil, Roger V Bostelman, Kamel S Saidi, William P Shackleford, Geraldine S Cheok, Michael O Shneier, Tsai Hong Hong
Abstract: We have been researching 3D ground-truth systems for performance evaluation of vision and perception systems in the fields of smart manufacturing and robotics safety. In this paper we first present an overview of different systems that have been used ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913818



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