ASTM E2938-15
Standard Test Method for Evaluating the Relative-Range Measurement Performance of 3D Imaging Systems in the Medium Range

Standard No.

ASTM E2938-15

Release Date

2015

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM E2938-15(2023)

Latest

ASTM E2938-15(2023)

Scope

4.1 This standard provides a test method for obtaining the range error for medium-range 3D imaging systems. The results from this test method may be used to evaluate or to verify the range 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 range performance of the IUT obtained by the application of this test method may be different from the range performance of the IUT under some real-world conditions. For example, object geometry, texture, temperature and reflectance as well as vibrations, particulate matter, thermal gradients, ambient lighting, and wind in the environment will affect the range performance.

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. This test may be repeated for any target 2 range within the manufacturer’s specifications and for any rated conditions.

4.4 For the purposes of understanding the behavior of the IUT and without warranty implications, this test may be modified as necessary to characterize the range measurement performance of the IUT outside the manufacturer’s rated conditions, but within the manufacturer’s limiting conditions.

4.5 The manufacturer may provide different values for the specifications for different sets of rated conditions, for example, better range measurement performance might be specified under a set of more restrictively rated environmental conditions. The user is advised that the IUT’s performance may differ significantly in other modes of operation or outside the rated conditions and should inquire with the manufacturer for specifications of the mode that best represents the planned usage. If a target other than that described in Section 7, or if procedures other than those described in Section 8 are used, additional analysis not covered in this test method may be required.

1.1 This standard describes a quantitative test method for evaluating the range measurement performance of laser-based, scanning, time-of-flight, 3D imaging systems in the medium range. The term “medium range” refers to systems that are capable of operating within at least a portion of ranges from 2 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 as per Terminology E284. This test method only applies to 3D imaging systems that are capable of producing a point cloud representation of a measured target.

1.1.1 As defined in Terminology E254......

ASTM E2938-15 Referenced Document

• ASME B89.1.9-2002 Gage Blocks
• ASME B89.4.19-2006 Performance Evaluation of Laser-Based Spherical Coordinate Measurement Systems
• ASME B89.7.2-1999 Dimensional Measurement Planning
• ASTM E1164 Standard Practice for Obtaining Spectrophotometric Data for Object-Color Evaluation
• ASTM E1331 Standard Test Method for Reflectance Factor and Color by Spectrophotometry Using Hemispherical Geometry
• ASTM E2544 Standard Terminology for Three-Dimensional (3D) Imaging Systems (Standard + Redline PDF Bundle)
• ASTM E2641 Standard Practice for Best Practices for Safe Application of 3D Imaging Technology
• ASTM E284 Standard Terminology of Appearance

ASTM E2938-15 history

• 2023 ASTM E2938-15(2023) Standard Test Method for Evaluating the Relative-Range Measurement Performance of 3D Imaging Systems in the Medium Range
• 2015 ASTM E2938-15 Standard Test Method for Evaluating the Relative-Range Measurement Performance of 3D Imaging Systems in the Medium Range