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Displaying 251 - 275 of 342

Comprehensive Standard Test Suites for the Performance Evaluation of Mobile Robots

January 31, 2011
Author(s)
Adam S. Jacoff, Hui-Min Huang, Elena R. Messina, Ann M. Virts, Anthony J. Downs
Robots must possess certain sets of capabilities to suit critical operations such as emergency responses. In the mobility function, ground robots must be able to handle many types of obstacles and terrain complexities, including traversing and negotiating

Evaluation of Maps using Fixed Shapes: The Fiducial Map Metric

January 31, 2011
Author(s)
Soren Schwertfeger, Adam S. Jacoff, Christopher Scrapper, Johannes Pellenz, Alexander Kleiner
Mapping is an important task for mobile robots. Assessing the quality of those maps is an open topic. A new approach on map evaluation is presented here. It makes use of artificial objects placed in the environment named "Fiducials". Using the known ground

Metrics for Mixed Pallet Stacking

January 31, 2011
Author(s)
Stephen B. Balakirsky, Thomas R. Kramer, Frederick M. Proctor
Stacking boxes of various sizes and contents on pallets (i.e. making mixed pallets) is a primary method of preparing goods for shipment from a warehouse to a store or other distant site. Many billions of dollars are spent each year in preparing, shipping

Using Simulation To Assess The Effectiveness of Pallet Stacking Methods

November 19, 2010
Author(s)
Stephen B. Balakirsky, Frederick M. Proctor, Thomas R. Kramer, Pushkar Kolhe, Henrik I. Christensen
Stacking objects onto pallets is the most widely used method of bulk shipping, accounting for over 60% of the volume of goods shipped worldwide. Due in part to the wide variation in size, shape and weight of objects to be palletized, successful stacking is

An Advanced Patient Lift and Transfer Device for the Home

October 29, 2010
Author(s)
Roger V. Bostelman, Ji-Chul Ryu, Tommy Chang, Joshua Johnson, S K. Agrawal
The Home Lift, Position and Rehabilitation (HLPR) Chair has a unique design and novel capabilities when compared to conventional powered wheelchairs. In addition to mobility, it provides lift and can transfer patients. Even though medical devices are

Performance Assessment of Face Recognition Using Super-Resolution

October 25, 2010
Author(s)
Shuowen Hu, Robert Maschal, S. S. Young, Tsai H. Hong, P. Jonathon Phillips
Recognition rate of face recognition algorithms is dependent on the resolution of the imagery, specifically the number of pixels contained within the face. Using a sequence of frames from low-resolution videos, super-resolution reconstruction can form a

Methodology for evaluating Static six-degree-of-freedom (6DoF) Perception Systems

October 15, 2010
Author(s)
Tommy Chang, Tsai H. Hong, Joseph Falco, Michael O. Shneier, Milli Shah, Roger D. Eastman
In this paper, we apply two fundamental approaches toward evaluating a static, vision based, six-degree-of-freedom (6DoF) pose determination system that measures the position and orientation of a part. The first approach uses ground\-truth carefully

Variability in the Geometric Accuracy of Additively Manufactured Test Parts

August 9, 2010
Author(s)
April L. Cooke, Johannes A. Soons
Results of a study on the variability in the geometric accuracy of a metal test part manufactured by several service providers using either electron beam or laser based powder bed thermal fusion processes are described. The part was a circle-diamond-square

2009 Performance Metrics for Intelligent Systems (PerMIS'09) Workshop

July 9, 2010
Author(s)
Rajmohan Madhavan, Elena R. Messina
The Performance Metrics for Intelligent Systems (PerMIS) workshop is dedicated to defining measures and methodologies of evaluating performance of intelligent systems. The main theme of the ninth iteration of the workshop, PerMIS'09, addressed the question

Ultra-Precision Linear Motion Metrology

June 23, 2010
Author(s)
Ronnie R. Fesperman Jr., M A. Donmez, Shawn P. Moylan
Many new emerging applications of nanotechnologies require the use of compact precision linear translation stages that have positioning resolution on the order of a nanometer and an exceptionally long range of motion on the order of tens of millimeters

Evaluating The RoboCup 2009 Virtual Robot Rescue Competition

April 22, 2010
Author(s)
Stephen B. Balakirsky, Stefano Carpin, Arnoud Visser
The 2009 RoboCup Competitions took place in Graz Austria in July of 2009. The Virtual Robot Rescue Competition included 11 competitors from 10 different countries. The main objective of this competition is to utilize teams of robots to perform an urban

Performance Evaluation and Benchmarking of Robotic and Automation Systems

March 31, 2010
Author(s)
Rajmohan Madhavan, Elena R. Messina, Angel P. Del Pobil
The Technical Committee on Performance Evaluation and Benchmarking for Robotic and Automation Systems (TC-PEBRAS) was approved at the Technical Activities Board (TAB) meeting held at the 2009 International Conference on Robotics and Automation (ICRA) in

Benchmarking and Standardization of Intelligent Robotic Systems

March 18, 2010
Author(s)
Rajmohan Madhavan, R Lakaemper, Tamas Kalmar-Nagy
From mundane and repetitive tasks to assisting first responders in saving lives of victims in disaster scenarios, robots are expected to play an important role in our lives in the coming years. Despite recent advances in mobile robotic systems, lack of

Performance Measures Framework for Unmanned Systems (PerMFUS): Initial Perspective

February 18, 2010
Author(s)
Hui-Min Huang, Elena R. Messina, Adam S. Jacoff
The performance of intelligent unmanned systems (UMS) must be able to be measured to ensure that they can meet the operational requirements. A generic framework to enable capturing and organizing the performance metrics are highly desirable. In this

Complete Inspection: In-situ system to inspect 100% of micro-parts

February 1, 2010
Author(s)
Shawn P. Moylan
On-machine measurement can provide significant advantages in part metrology at the micro/meso-scale. The strengths of measurement by fringe projection techniques directly address the difficulties presented by on-machine measurement. An experimental setup

DYNAMIC PERCEPTION WORKSHOP REPORT: Requirements and Standards for Advanced Manufacturing

January 14, 2010
Author(s)
Tsai Hong Hong, Elena R. Messina, Hui-Min Huang, Michael O. Shneier, Roger D. Eastman, Jane Shi, James Wells
The Dynamic Perception workshop was intended to further the development of standardized, reproducible, and portable test methods that can advance the technology of sensors and perception systems for new, flexible robotic and automation applications in
Displaying 251 - 275 of 342