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Author: geraldine cheok

Displaying records 41 to 50 of 76 records.
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41. TIN Techniques for Data Analysis and Surface Construction
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7078
Published: 1/1/2004
Authors: Christoph Johann Witzgall, Javier Bernal, Geraldine S Cheok
Abstract: This report addresses the task of meshing point clouds by triangulated elevated surfaces referred to as TIN surfaces. It describes the general features of this approach, and refers to prototype TIN software employed at NIST for research into the ana ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860537

42. Deconvolving LADAR Images Of Bar Codes for Construction Site Object Recognition
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7044
Published: 10/1/2003
Authors: David E. Gilsinn, Geraldine S Cheok, Dianne M O'Leary
Abstract: This report discusses a general approach to reconstructing ground truth intensity images of bar codes that have been distorted by LADAR optics. The first part of this report describes the experimental data collection of several bar code images along ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50685

43. Proceedings of the LADAR Calibration Facility Workshop, June 12-13, 2003
Series: NIST Interagency/Internal Report (NISTIR)
Published: 10/1/2003
Author: Geraldine S Cheok
Abstract: The use and scope of LADAR applications continues to expand as the technology matures, but standard protocols or procedures for calibrating and testing of LADARs have yet to be developed. While selections of LADAR instruments are generally based on ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860533

44. Some Issues Relating to Performance Evaluation of LADARs
Published: 9/16/2003
Authors: Geraldine S Cheok, William C Stone, Christoph Johann Witzgall
Abstract: The use and scope of LADAR applications continues to expand as the technology matures. This growth is reflected in NIST's experience with research into the applications of LADARs for construction, manufacturing, and autonomous vehicle navigation. How ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909352

45. Terrain Characterization from Ground-Based LADAR
Published: 9/16/2003
Authors: Christoph Johann Witzgall, Geraldine S Cheok, David E. Gilsinn
Abstract: Test runs of Army Research Laboratory s (ARL) autonomous vehicle (Experimental Unmanned Vehicle, XUV) were followed by the acquisition of high resolution scans of selected regions of the test course. These scans were used to i) determine terrain fea ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860510

46. Ground Truth and Benchmarks for Performance Evaluation
Published: 9/1/2003
Authors: A Takeucki, Michael O Shneier, Tsai Hong Hong, Tommy Chang, Christopher J. Scrapper Jr, Geraldine S Cheok
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823479

47. Ground Truth and Benchmarks for Performance Evaluation
Published: 4/25/2003
Authors: A Takeuchi, Michael O Shneier, Tsai Hong Hong, Christopher J. Scrapper Jr, Geraldine S Cheok
Abstract: Progress in algorithm development and transfer of results to practical applications such as military robotics requires the setup of standard tasks, of standard qualitative and quantitative measurements for performance evaluation and validation. Altho ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822594

48. A Repository of Sensor Data for Autonomous Driving Research
Published: 4/25/2003
Authors: Michael O Shneier, Tommy Chang, Tsai Hong Hong, Geraldine S Cheok, Harry A. Scott, Steven Legowik, Alan M. (Alan M.) Lytle
Abstract: We describe a project to collect and disseminate sensor data for autonomous mobility research. Our goals are to provide data of known accuracy and precision to researchers and developers to enable algorithms to be developed using realistically diffic ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822472

49. Terrain Characterization from Ground-Based LADAR
Series: Journal of Research (NIST JRES)
Report Number: NIST
Published: 3/17/2003
Authors: Christoph Johann Witzgall, Geraldine S Cheok, David E. Gilsinn
Abstract: Test runs of Army Research Laboratory s (ARL) autonomous vehicle (Experimental Unmanned Vehicle, XUV) were followed by the acquisition of high resolution scans of selected regions of the test course. These scans were used to i) determine terrain ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50710

50. Calibration Experiments of a Laser Scanner
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6922
Published: 9/1/2002
Authors: Geraldine S Cheok, Stefan D Leigh, Andrew L Rukhin
Abstract: The potential applications of laser scanners or LADARs (Laser Detection and Ranging) are numerous, and they cross several sectors of the industry construction, large-scale manufacturing, remote sensing, national defense. A LADAR is an instrument ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860455