ASTM E3125-17
(Test Method)Standard Test Method for Evaluating the Point-to-Point Distance Measurement Performance of Spherical Coordinate 3D Imaging Systems in the Medium Range
Standard Test Method for Evaluating the Point-to-Point Distance Measurement Performance of Spherical Coordinate 3D Imaging Systems in the Medium Range
SIGNIFICANCE AND USE
4.1 This standard provides a test method for obtaining the point-to-point distance measurement errors for medium-range 3D imaging systems. The results from this test method may be used to evaluate or to verify the point-to-point distance measurement performance of medium-range 3D imaging systems. The results from this test method may also be used to compare performance among different instruments.
4.2 The purpose of this document is to provide test procedures that are sensitive to instrument error sources. The point-to-point distance measurement performance of the IUT obtained by the application of this test method may be different from the point-to-point distance measurement performance of the IUT under some real-world conditions. For example, object geometry, texture, surface reflectance factor, and temperature, as well as particulate matter, thermal gradients, atmospheric pressure, humidity, ambient lighting in the environment, mechanical vibrations, and wind induced test setup instability will affect the point-to-point distance measurement performance (see Appendix X10 for a discussion on thermal effects). A derived-point such as the center of a suitable sphere or plate target that meets the requirements described in Section 7 provides a reliable point in space that is minimally impacted by target-related properties such as geometry, surface texture, color, and reflectivity. Additional tests not described in this standard may be required to assess the contribution of these influence factors on point-to-point distance measurements.
4.3 The test may be carried out for instrument acceptance, warranty or contractual purposes by mutual agreement between the manufacturer and the user. The IUT is tested in accordance with manufacturer-supplied specifications, rated conditions, and technical documentation.
4.4 For the purposes of understanding the behavior of the IUT and without warranty implications, this test may be modified as necessary to evaluate the point...
SCOPE
1.1 This test method covers the performance evaluation of laser-based, scanning, time-of-flight, single-detector 3D imaging systems in the medium-range and provides a basis for comparisons among such systems. This standard best applies to spherical coordinate 3D imaging systems that are capable of producing a point cloud representation of an object of interest. In particular, this standard establishes requirements and test procedures for evaluating the derived-point to derived-point distance measurement performance throughout the work volume of these systems. Although the tests described in this standard may be used for non-spherical coordinate 3D imaging systems, the test method may not necessarily be sensitive to the error sources within those instruments.
1.2 System performance is evaluated by comparing measured distance errors between pairs of derived-points to the manufacturer-specified, maximum permissible errors (MPEs). In this standard, a derived-point is a point computed using multiple measured points on the target surface (such as the center of a sphere). In the remainder of this standard, the term point-to-point distance refers to the distance between two derived-points.
1.3 The term “medium-range” refers to systems that are capable of operating within at least a portion of the ranges from 2 m to 150 m. The term “time-of-flight systems” includes phase-based, pulsed, and chirped systems. The word “standard” in this document refers to a documentary standard in accordance with Terminology E284.
1.4 This test method may be used once to evaluate the Instrument Under Test (IUT) for a given set of conditions or it may be used multiple times to assess the performance of the IUT for various conditions (for example, surface reflectance factors, environmental conditions).
1.5 SI units are used for all calculations and results in this standard.
1.6 This test method is not intended to replace more in-depth m...
General Information
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: E3125 − 17
Standard Test Method for
Evaluating the Point-to-Point Distance Measurement
Performance of Spherical Coordinate 3D Imaging Systems
1
in the Medium Range
This standard is issued under the fixed designation E3125; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 1.5 SI units are used for all calculations and results in this
standard.
1.1 This test method covers the performance evaluation of
laser-based, scanning, time-of-flight, single-detector 3D imag- 1.6 This test method is not intended to replace more
ing systems in the medium-range and provides a basis for
in-depth methods used for instrument calibration or
comparisonsamongsuchsystems.Thisstandardbestappliesto compensation, and specific measurement applications may
spherical coordinate 3D imaging systems that are capable of
require other tests and analyses.
producing a point cloud representation of an object of interest.
1.7 This standard does not purport to address all of the
In particular, this standard establishes requirements and test
safety concerns, if any, associated with its use. It is the
procedures for evaluating the derived-point to derived-point
responsibility of the user of this standard to establish appro-
distance measurement performance throughout the work vol-
priate safety, health, and environmental practices and deter-
ume of these systems. Although the tests described in this
mine the applicability of regulatory limitations prior to use.
standardmaybeusedfornon-sphericalcoordinate3Dimaging
Some aspects of the safe use of 3D imaging systems are
systems,thetestmethodmaynotnecessarilybesensitivetothe
discussed in Practice E2641.
error sources within those instruments.
1.8 This international standard was developed in accor-
1.2 System performance is evaluated by comparing mea-
dance with internationally recognized principles on standard-
sured distance errors between pairs of derived-points to the
ization established in the Decision on Principles for the
manufacturer-specified, maximum permissible errors (MPEs).
Development of International Standards, Guides and Recom-
In this standard, a derived-point is a point computed using
mendations issued by the World Trade Organization Technical
multiple measured points on the target surface (such as the
Barriers to Trade (TBT) Committee.
center of a sphere). In the remainder of this standard, the term
point-to-point distance refers to the distance between two
2. Referenced Documents
derived-points.
2
2.1 ASTM Standards:
1.3 The term “medium-range” refers to systems that are
E284Terminology of Appearance
capableofoperatingwithinatleastaportionoftherangesfrom
E1164PracticeforObtainingSpectrometricDataforObject-
2 m to 150 m. The term “time-of-flight systems” includes
Color Evaluation
phase-based, pulsed, and chirped systems. The word “stan-
E1331Test Method for Reflectance Factor and Color by
dard” in this document refers to a documentary standard in
Spectrophotometry Using Hemispherical Geometry
accordance with Terminology E284.
E2544Terminology for Three-Dimensional (3D) Imaging
Systems
1.4 This test method may be used once to evaluate the
E2641PracticeforBestPracticesforSafeApplicationof3D
Instrument Under Test (IUT) for a given set of conditions or it
Imaging Technology
may be used multiple times to assess the performance of the
E2919Test Method for Evaluating the Performance of
IUT for various conditions (for example, surface reflectance
Systems that Measure Static, Six Degrees of Freedom
factors, environmental conditions).
(6DOF), Pose
1
This test method is under the jurisdiction of ASTM Committee E57 on 3D
2
Imaging Systems and is the direct responsibility of Subcommittee E57.20 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Terrestrial Stationary Systems. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Oct. 1, 2017. Published December 2017. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/E3125-17. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E3125 − 17
E2938Test Method for Evaluating the Relative-Range Mea- quantity values with measurement uncertainties provided by
surement Performance of 3D Imaging Systems in the measurement standards a
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