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ICDM


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ICDM is the International Committee for Display Metrology, part of SID's Definitions and Standards Committee charged with setting standards for display metrology. ICDM is largely focused on the production of the Information Display Measurements Standard, which has about 140 display measurements covering every area of displays. The standard is intended to include nearly every display technology for multiple user types, from display manufacturers to consumers.

The ICDM does not mediate any issues concerning companies reporting any data obtained through their use of the content of the IDMS document. According to Section 1.1.3 in IDMS, "(the ICDM) does not set compliance values for any of its measurements. That is the job of other standards organizations." Please refer to the relevant sections of the IDMS for further clarification.

Premier Display Measurement Standard Available

The International Committee for Display Metrology (ICDM) and the Society for Information Display (SID) released the Information Display Measurements Standard (IDMS) in 2012. The IDMS is the "Go-To" document for standard measurement procedures to quantify electronic display characteristics and qualities. It is the culmination of years of effort by engineers and scientists across dozens of organizations to codify the science of display measurement, explain some of the difficulties associated with making measurements, and offer solutions to help make the measurements properly. The IDMS has benefited from the expertise of display metrologists, electrical, mechanical, software and optical engineers, physicists, vision scientists, and many other display-related disciplines. The ICDM is currently developing v1.1, which will update and add new content to the v1 release.

To promote the spread and use of the measurement procedures and techniques within the display community, an electronic version of the IDMS is freely available. It is unprecedented in the display community that a piece of work of this scope and depth be distributed at no charge. This decision follows the philosophy of the ICDM and SID, which is to provide the standard to as wide of an audience as possible to help establish the techniques within the document as the universal choice for display measurements. SID and the ICDM expect this document to continue to evolve over time, with updates, supplemental files, and other value-added content to follow.

The IDMS features the following:

  • Self-contained measurement procedures that are clear and easy to use
  • A library of commonly used and newly developed display measurements
  • Dozens of new display measurements for current and future displays
  • Adaptability - allows a variety of equipment for measurements
  • Tutorials and other supplemental sections included
  • Includes diagnostics, cautions and useful hints

Benefits of using the IDMS include:

  • Lower costs: consume less time and money due to unambiguous definitions of measurement methods
  • Reduce development lead times by using standardized metrics
  • Provide a common language to reduce risk of disagreements regarding performance
  • Increase customer satisfaction by having more accurate, reliable, and repeatable performance characterizations
  • Convenience: provide all measurement procedures and auxiliary information under a single cover
Former ICDM Chair, Joe Miseli, stated "The IDMS is the first standard from the ICDM and SID. It is a defining work for evaluating displays and is the most comprehensive display measurement and metrology standard yet produced. It provides a full set of common and more specialized display measurement procedures to characterize display performance. It also includes new and innovative measurements never before standardized for characterizing modern displays, as well as many references to clarify and expand upon metrology foundations and techniques. It builds upon the tremendous amount of work of many, especially the Editor-in-Chief, Ed Kelley, a former NIST physicist and one of the foremost metrologists in the display industry today. The IDMS is written in plain English with abundant use of graphics and examples that makes it simple to use and so can be widely applied throughout the display industry. It is all-inclusive so that everything one needs is available in a single volume."

Former SID President, Brian Berkeley, stated, "SID is proud to [make available] the first release of the IDMS. This landmark standard is the culmination of untold hours of effort on the part of contributors representing a broad cross-section of the display field. The IDMS is the single most significant display measurement standard to be released in more than 10 years. Working under the auspices of SID, and with the cooperation of the Video Electronics Standards Association (VESA), the ICDM has created a valuable standard that truly advances display measurement science. The IDMS will enable and promote consistency in the characterization and reporting of critical display performance parameters. Considering the rapid pace of innovation and advances in display science over the past decade, the IDMS meets a tremendous need for the display industry. SID congratulates and extends its thanks to all of the ICDM members for their profound contribution."

The IDMS is the follow-up to the Flat Panel Display Measurements Standard (version 2.0), used extensively by the industry since its publication by the VESA in 2001. The IDMS does not set performance standards, but gives guidance about how to measure displays. This will allow component suppliers, display manufacturers and customers to clearly communicate, understand and agree with the measurement and characterization methods upon which performance standards are based.

An electronic version of the IDMS is now available as a free download.

The ICDM welcomes display professionals skilled in the field of display evaluation or related activities and with an interest in furthering the purpose of the ICDM. Individuals may apply for either observer status (non-voting) or expert status (technical contributors with voting rights). Applicants must apply to the ICDM Executive Committee (ICDM EC) using the online membership application form. The EC reviews all applicants; additionally, the relevant subgroup chairs review expert status applicants for their respective subgroups.
































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The IDMS is a display measurement and metrology standard to help evaluate displays by providing many measurements, techniques for subjective evaluation, and appendices with helpful references. It may be downloaded without charge provided the user accepts and agrees to the Terms of the Society for Information Display End User License Agreement.

By downloading this document, I indicate that I have read and agree to the IDMS End User License Agreement.

 

 

IDMS Revision Record

IDMS Revision History
Release Version Description of Change Release Date Approved
IDMS1 1.00 Preliminary release   ICDM Voting Members
IDMS1 1.01 Iinter-ratification-stage contingeny version, no changes.   I  "
IDMS1 1.02   "     "
IDMS1 1.03 Initial release May 29, 2012 ICDM Voting Members
IDMS1 1.03a Corrected critical typographical error, page xiii May 29, 2012 SID EC
IDMS1 1.03b Corrected spurious characters on hyperlinks June 3, 2012 SID EC

The errata listed here are changes to sections of the IDMS to correct errors which were found on a per-section basis by users of the document or to add information to help do the measurements and/or evaluation. Most were reviewed internally, and then the ICDM membership was given access to the errata before they were posted here, to help verify their accuracy and to help assure no one had any issues or concerns about them. Some of them were voted to be accepted by ICDM members at Display Week.

IDMS Errata Revision Record and Update Access

Release IDMS Vers. Ch. Chapter Section Section Title Rev Date Approver Description of Change
IDMS1 1.03  11 Reflection 11.7.3.1

Removal of Lambertian Component from Specular Result

01 11/1/12 John Penczek Correction of Eq. (1) to account for the distance of the source from the display. Addition of Comments explaining the calculation.
IDMS 1.03   8 Uniformity 8.2.3 Mura Analysis 01 2/16/13 Andrew Watson

-1- Equation (1) was missing a minus sign in front of the π ; a minus sign has been added. -2- Equation (5) was duplicated on the same line; duplicate removed.

  "   "   "   "   " Mura Analysis 02 5/3/13 Andrew Watson

Eq. (6): pxpy is replaced with r -2: pxpy are horizontal and vertical pixel widths in degrees, but we have assumed square pixels with r being the number of degrees per pixel.

  "   "   "   "   " Mura Analysis 03 5/31/13 Andrew Watson

Eq. (6): r -2 is replaced with (k/r)2 as in Eq. (5).

IDMS 1.03   8 Uniformity 8.0 Introduction section, Color uniformity 01 3/25/13 Ed Kelley Equation (3) was in error. Changed v'1+v'2 to v'1-v'2
IDMS 1.03   5 Fundamental 5.31 Volume-Color-Reproduction Capability 01 3/26/13 Jongho Chong -1- Added numbers to the equations in the section. -2- For the measurement analysis for Equation (8), the gradation equation for LQn is changed to include LQmin (measured black luminance) in place of "0" for black, and the definition of LQmin is explained. LQmin is added as an offset to assure the equation never goes to 0 for any of the values of n. -3- Fixed typo in name of Fig. 2, to make it “Triangulations.” -4- Fixed minor typos in the Application paragraph.
IDMS 1.03  10 Temporal 10.1 Warm-up Time 01 4/21/13 Ed Kelley

-1- Changed Procedure paragraph: ...; the time of the beginning of the measurement is ti.     to be ...; the time of the beginning of the measurement is t1, and ti represents the times for the remaining Li measurements. -2- Changed Analysis paragraph: ... ∂L = 0.01L (1% of the average).     to be ....∂L = 0.05L (5% of the average).

IDMS 1.03  17 3D & Stereoscopic Displays 17.2.7 Stereoscopic Gray-to-Gray Average Crosstalk 01 4/26/13 Adi Abileah

-1- Eq. (2) last two indices should have been "jj". -2- Table 1 percent signs removed, units added, significant figures made consistent.

IDMS 1.03   3 Setup of Display & Apparatus 3.6 Coordinate Systems & Viewing Angles 01 10/10/14 Ed Kelley

Was    -a- Column 2: North Polar (Independent Axis Vertical)    -b- Column 3: East Polar (Independent Axis Horizontal) Changed to be    -a- Column 2: North Polar (Independent Axis Horizontal)    -b- Column 3: East Polar (Independent Axis Vertical)

IDMS 1.03   7 Spatial Measurements 7 Spatial Measurements 01 5/24/16 ICDM Spatial Subcommittee

Explanatory text added under the heading “STATUS OF PIXELS AND SUBPIXEL RENDERING FOR RESOLUTION MEASUREMENTS”

IDMS 1.03   7 Spatial Measurements 7.2 Grille Luminance and Contrast 01 5/24/16 ICDM Spatial Subcommittee

Addendum added to provide guidance in making proper grille measurements on any type of display. At the end of the Addendum was added Additional Comments for more application guidance and requirements.

IDMS 1.03   7 Spatial Measurements 7.8 Resolution from Contrast Modulation 01 5/24/16 ICDM Spatial Subcommittee

Added text box and note at the end of the section. The note following the text box serves as a pointer to 7.0 and 7.2.

IDMS Errata Document Access

Section Title

Download here by Errata Documents Titles

11.7.3.1 Removal of Lambertian Component from Specular Result 11p7p3p1-01-20121101.pdf
8.2.3 Mura Analysis 8p2p3-03-20130531.pdf
8.0 Introduction section, Color uniformity 8p0-01-20130325.pdf
5.31 Volume-Color-Reproduction Capability 5p31-01-20130326.pdf
10.1 Warm-up Time 10p1-01-20130421.pdf
17.2.7 Stereoscopic Gray-to-Gray Average Crosstalk 17p2p7-01-20130426.pdf
3.6 Coordinate Systems & Viewing Angles 3p6-01-20140905.pdf
7 Spatial Measurements 7p0-01-20160524.pdf
7.2 Grille Luminance and Contrast 7p2-01-20160524.pdf
7.8 Resolution from Contrast Modulation 7p8-01-20160524.pdf

TEST PATTERN DOWNLOADS

The ICDM Test Patterns are in the Public Domain.

The ICDM provides display test patterns which can be used for testing with the IDMS1 (Information Display Measurement Standard) or for general display performance measurements or evaluation.

These patterns are native format patterns for a number of display formats (format being the pixel array of the display, sometimes referenced as resolution). You can freely download them for your use. Please be sure to give recognition to the ICDM for making these patterns available to all.

These test patterns are in the public domain presented by the ICDM. They were initially developed by Ed Kelley when he was with NIST, with contributions from Joe Miseli. Thanks also to Michael H. Brill for the concept of the Color Inversion Pattern (CINV01_...). Although you can use them freely, please always give mention to the ICDM for providing them and keep the ICDM name with them in distribution.

We plan to add more to these pattern sets, so be sure check back from time to time. The dash number indicates the revision level of the pattern. Each successive update to the test pattern sets will be seen as an increment to the version number in the title. For example, the current bitmapped test pattern file ICDM-00_1920x1080.zip will increment to be ICDM-01_1920x1080.zip when the next version is available.

On this site we plan to include further test patterns to support the ICDM standard (IDMS), reporting templates, and other utilities to help you use the IDMS.

 

The following database is available for perusal and download:

Complete ICDM Download Archive Click to access folder

Individual Test Patterns may be downloaded below:

File Name Filesize Pixel Dimension Aspect Ratio Format
ICDM-00_0060x0060.zip0.68MB60x601:01Square
ICDM-00_0065x0096.zip0.81MB65x96~2:3Portrait mode
ICDM-00_0080x0080.zip0.84MB80x801:01Square
ICDM-00_0096x0064.zip0.75MB96x643:02
ICDM-00_0120x120.zip1.2MB120x1201:01Square
ICDM-00_0120x0160.zip1.5MB120x1603:04Portrait mode of 1/8 VGA
ICDM-00_0128x0128.zip1.3MB128x1281:01Square
ICDM-00_0128x0160.zip1.5MB128x1604:05Portrait mode
ICDM-00_0132x0120.zip1.3MB132x12011:10 (~1:1)15840
ICDM-00_0132x0132.zip1.4MB132x1321:01Square
ICDM-00_0132x0176.zip1.7MB132x1763:04
ICDM-00_0160x0120.zip1.3MB160x1204:031/4 VGA
ICDM-00_0160x0128.zip1.4MB160x1285:04
ICDM-00_0160x0160.zip1.7MB160x1601:01Square
ICDM-00_0176x0132.zip1.5MB176x1324:03
ICDM-00_0176x0144.zip1.6MB176x14411:09qCIF
ICDM-00_0176x0208.zip2.2MB176x20811:13Portrait mode
ICDM-00_0200x0640.zip4.6MB200x6405:16Portrait mode
ICDM-00_0208x0176.zip2.1MB208x17613/11
ICDM-00_0240x0180.zip2.1MB240x1804:03
ICDM-00_0240x0320.zip4.6MB240x3203:04Portrait mode of 1/4 VGA
ICDM-00_0240x0640.zip5.9MB240x6403:08Portrait mode of 1/2 VGA
ICDM-00_0256x0256.zip3.4MB256x2561:01Square - 1/4 K
ICDM-00_0320x0180.zip2.5MB320x18016:09
ICDM-00_0320x0240.zip3.4MB320x2404:031/4 VGA
ICDM-00_0320x0320.zip5.8MB320x3201:01Square
ICDM-00_0320x0340.zip6.2MB320x340~10:11Portrait mode
ICDM-00_0320x0480.zip7.9MB320x4802:03Portrait mode of 1/2 VGA
ICDM-00_0320x0640.zip8.9MB320x6402-JanPortrait mode
ICDM-00_0352x0288.zip4.5MB352x28811:09CIF
ICDM-00_0384x0240.zip3.7MB384x24016:10
ICDM-00_0400x0240.zip3.8MB400x2405:03
ICDM-00_0423x0317.zip6.7MB423x317~4:3
ICDM-00_0480x0160.zip2.6MB480x1603:01Very wide format
ICDM-00_0480x0360.zip8.4MB480x3604:03
ICDM-00_0480x0640.zip15MB480x6403:04Portrait mode of VGA
ICDM-00_0512x0320.zip7.4MB512x32016:10
ICDM-00_0512x0512.zip13MB512x5121:01Square - 1/2 K
ICDM-00_0600x0800.zip23MB600x8003:04Portrait mode of SVGA
ICDM-00_0640x0320.zip8.0MB640x3202:01
ICDM-00_0640x0480.zip14MB640x4804:03VGA
ICDM-00_0640x1024.zip28MB640x102410:16
ICDM-00_0768x0480.zip15MB768x48016:10
ICDM-00_0768x1024.zip36MB768x10243:04Portrait mode of XGA
ICDM-00_0800x0600.zip22MB800x6004:03SVGA
ICDM-00_0848x0480.zip16MB848x480~16:9
ICDM-00_0852x0480.zip16MB852x4804:03
ICDM-00_0853x0480.zip16MB853x480~16:9
ICDM-00_1024x0576.zip22MB1024x57616:09
ICDM-00_1024x0640.zip27MB1024x64016:10
ICDM-00_1024x0768.zip34MB1024x7684:03XGA
ICDM-00_1024x1024.zip47MB1024x10241:01Square - 1 K
ICDM-00_1024x1080.zip51MB1024x1080~1:1
ICDM-00_1024x1280.zip53MB1024x12804:05Portrait mode of SXGA
ICDM-00_1152x0864.zip42MB1152x8644:03
ICDM-00_1280x0720.zip35MB1280x72016:09HDTV2
ICDM-00_1280x0768.zip38MB1280x7685:03WXGA+
ICDM-00_1280x0960.zip51MB1280x9604:03QVGA
ICDM-00_1280x1024.zip55MB1280x10245:04SXGA
ICDM-00_1360x0768.zip39MB1360x768~16:9
ICDM-00_1366x0768.zip39MB1366x768~16:9
ICDM-00_1400x1050.zip60MB1400x10504:03SXGA+
ICDM-00_1600x1024.zip63MB1600x102426:16:00
ICDM-00_1600x1200.zip75MB1600x12004:03UXGA
ICDM-00_1638x1024.zip64MB1638x102416:10
ICDM-00_1680x1050.zip66MB1680x105016:10WSXGA+
ICDM-00_1760x1360.zip88MB1760x1360~4:3
ICDM-00_1920x1080.zip73MB1920x108016:09HDTV / FHD
ICDM-00_1920x1200.zip83MB1920x120016:10WUXGA
ICDM-00_2000x1600.zip110MB2000x16005:04
ICDM-00_2048x1080.zip75MB2048x108021:09
ICDM-00_2048x1536.zip109MB2048x15364:03QXGA, iPad Retina
ICDM-00_2048x2048.zip133MB2048x20481:01Square - 2K
ICDM-00_2560x1600.zip130MB2560x160016:10WQXGA
ICDM-00_2560x2048.zip162MB2560x20485:04QSXGA
ICDM-00_3200x2400.zip223MB3200x24004:03QUXGA
ICDM-00_3840x2160.zip261MB3840x216016:09UHD, 4K TV, QHD
ICDM-00_3840x2400.zip253MB3840x240016:10WQUXGA
ICDM-00_4096x3172.zip346MB4096x3172~4:3
ICDM-00_4096x4096.zip418MB4096x40961:01Square - 4K x 4K

If you have questions, comments, or suggestions, please contact as at: icdm_support@sid.org

 

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