SEMI International Standards
Standards New Activity Report Form (SNARF)
Date Prepared: 05/22/2026Revised (if Applicable):

Document Number: 7474
SNARF for: New Standard, Test Method for See-through Image Quality based on Image-based CW-SSIM Index and Contrast-Refined-Optical Structural Score

Originating Global Technical Committee: Flat Panel Display (FPD) - Metrology
Originating TC Chapter: Taiwan
Task Force (TF) in which work is to be carried out: Transparent Display Task Force
Note: If a new task force is needed, also submit a task force organization form (TFOF)

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1. Rationale:
a. Describe the need or problem addressed by this activity.
(Indicate the customer, what benefits they will receive, and if possible, quantify the impact on the return on investment [ROI] if the Document is implemented.)
Transparent displays have gained recognition for their wide-ranging applications as next-generation display technologies, including augmented reality systems, heads-up displays and digital signage etc.

Previous studies have introduced several metrics for evaluating the quality of see-through images, including haze, clarity and purity as well. Their findings underscore the need for evaluation approaches that align closely with human visual perception, expanding the scope of subjective quality analysis to improve the accuracy of optical measurements across various display applications.

Recent papers demonstrate that the Image-based Complex Wavelet SSIM (CW-SSIM) algorithm can successfully evaluate the optical image quality of seams in transparent tiled micro-LED displays, and the simulation method of Contrast Fine Optical Structure Scoring (CROSS) provides a reliable framework for image quality assessment in the development of transparent displays.

This standard will cover both methods mentioned above and propose a testing method for the optical image quality of transparent displays. This comprehensive approach aims to bridge the gap between subjective human visual perception and objective indicator evaluation, thereby improving the consistency of display sharpness and image quality assessment.


b. Estimate effect on industry.
2: Major effect on an industry sector - identify the relevant sector
Sector or Company Information:

c. Estimate technical difficulty of the activity.
III: Difficult - Limited expertise and resources exist and/or achieving consensus is difficult

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2. Scope:
a: Describe the technical areas to be covered or addressed by this Document development activity. For Subordinate Standards, list common concepts or criteria that the Subordinate Standard inherits from the Primary Standard, as well as differences from the Primary Standard:
This work develops a practical image-based metric that uses the CW-SSIM index together with a simulation method that accounts for different PPIs and aperture ratios in transparent displays. The metric provides an objective way to evaluate see-through optical quality and helps bridge the gap between subjective perception and measurable results. Compared with existing approaches, it offers higher accuracy and consistency, enabling better optimization of transparent display technologies such as micro-LED and OLED.

b: Expected result of activity
New Standard or Safety Guideline (including replacement of an existing Standard or Safety Guideline)

For a new Subordinate Standard, identify the Primary Standard here:




For Standards, identify the Standard Subtype below:
Test Method

Miscellaneous (describe below):

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3. Projected Timetable for Completion:

a: General Milestones
a. Activity Start: 05/22/2026b. 1st Draft by: 07/17/2026
c. (Optional) Informational Ballot by: d. Letter Ballot by: 07/17/2026
e. TC Chapter Approval By:05/22/2026

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4. Liaisons with other Global Technical Committees/TC Chapters/Subcommittees/TFs:
a. List SEMI global technical committees, TC Chapters, subcommittees, or task forces in your or other Regions/Locales that should be kept informed regarding the progress of this activity. (Refer to SEMI Standards organization charts and global technical committee charters and scopes as needed.)


b. List any planned Type I Liaisons with external nonprofit organizations (e.g., SDO) that should receive Draft Documents from Standards staff for feedback during this activity and be notified when the Letter Ballot is issued (refer to Procedure Manual § 7):


c. Intercommittee Ballots:
will not be issued

Identify the recipient global technical committee(s):

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5. Safety Considerations:
The resulting document is expected:
NOT to be a Safety Guideline

NOTE FOR "to be a Safety Guideline": When all safety-related information is removed from the Document, the Document is NOT technically sound and complete - Refer to Section 15.1 of the Regulations for special procedures to be followed.

NOTE FOR "NOT to be a Safety Guideline": When all safety-related information is removed from the Document, the Document is still technically sound and complete.

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6. Intellectual Property Considerations:
Note: Both a: and b: below should be checked for Revision of existing Standard(s) and Safety Guideline(s).

a. For a new Standard or Safety Guideline and for any part to be modified or added in a Revision of published Standards and Safety Guidelines:
the use of patented technology is NOT required.

If "patented technology is intended to be included in the proposed Standard(s) or Safety Guideline(s) " is selected above, then also check one:


b. For Revision, Reapproval, Reinstatement, or Withdrawal of existing Standard(s) and Safety Guideline(s):


c. The body of the Document and any Appendices, Complementary Files, Related Information sections, or Various Materials that may or may not be a part of the Document by reference:
the incorporation of Copyrighted Item will NOT be required



NOTE FOR ‘the use of patented technology or the incorporation of Copyrighted Item(s) is NOT required’: If in the course of developing the Document, it is determined that the use of patented technology or Copyrighted Item(s) is necessary for the Document, the provisions of Regulations § 16 must be followed.

NOTE FOR ’will incorporate Copyrighted Item’: A copyright release letter must be obtained from the copyright owner prior to publication.

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7. Comments, Special Circumstances:
None.

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8. TC Member Review:
took place between (put dates below ) before approval at the TC Chapter Meeting, or

Member Review Start Date; 01/08/2026
Member Review End Date: 01/22/2026

NOTE FOR ‘TC Member Review’ is required by the Regulations for a period of at least two weeks
before approval of a new, or a major revision of an existing, Standard or Safety Guideline. (Refer to Regulations ¶ 8.2.1)
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9. SNARF Approval Dates:
TC Chapter or GCS05/22/2026
Recorded in TC Minutes05/22/2026

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10. SNARF Extension Dates:
TC Chapter Extension Granted on
Extension Expires on