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Data for "Estimating Uncertainty in Robot Kinematics and Pose Measurements with Expectation-Maximization"

Metadata Updated: September 30, 2023

Included here are figures and relevant data for the work "Estimating Uncertainty in Robot Kinematics and Pose Measurements with Expectation-Maximization". We present a method to validate the measurement uncertainty of a metrology instrument without a priori estimates in the context of a kinematic calibration using Expectation-Maximization methods and extend our results to characterize post-calibration pose uncertainty for the manipulator throughout a workspace. This technique permits the robot kinematic model to be fitted simultaneously with a parameterized uncertainty model derived from direct-drive laser tracker kinematics. We demonstrate the performance of this algorithm in a simulated and experimental setting, achieving 6.4um position and 70.8 urad rotation error for kinematic calibration and statistically validating the fitted uncertainty model for points throughout the calibrated workspace.

Access & Use Information

Public: This dataset is intended for public access and use. License: See this page for license information.

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Dates

Metadata Created Date September 30, 2023
Metadata Updated Date September 30, 2023

Metadata Source

Harvested from NIST

Additional Metadata

Resource Type Dataset
Metadata Created Date September 30, 2023
Metadata Updated Date September 30, 2023
Publisher National Institute of Standards and Technology
Maintainer
Identifier ark:/88434/mds2-3049
Data First Published 2023-08-08
Language en
Data Last Modified 2023-07-18 00:00:00
Category Manufacturing:Robotics in manufacturing, Mathematics and Statistics:Uncertainty quantification
Public Access Level public
Bureau Code 006:55
Metadata Context https://project-open-data.cio.gov/v1.1/schema/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 9bce0afd-4b26-4b30-bf75-40413cdf09bd
Harvest Source Id 74e175d9-66b3-4323-ac98-e2a90eeb93c0
Harvest Source Title NIST
Homepage URL https://data.nist.gov/od/id/mds2-3049
License https://www.nist.gov/open/license
Program Code 006:045
Source Datajson Identifier True
Source Hash 55ca1e77b8dbc219afa16da6b18bcd8beb71f5e758a5206a36129702a119c2b7
Source Schema Version 1.1

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