BS IEC 63145-21-20:2022

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Eyewear display – Specific measurement methods for VR image quality. Screen door effect

Published By	Publication Date	Number of Pages
BSI	2022	24

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Categories: 17.180.99 - Other standards related to optics and optical measurements, BSI

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PDF Catalog

PDF Pages	PDF Title
2	undefined
4	CONTENTS
5	FOREWORD
7	1 Scope 2 Normative references 3 Terms, definitions and abbreviated terms 3.1 Terms and definitions
8	3.2 Abbreviated terms 4 Standard measurement conditions 5 Measurement systems 5.1 Standard coordinate system 5.2 Measurement equipment 5.2.1 2D imaging LMD 5.2.2 Stage conditions 5.2.3 Setup conditions
9	5.3 Test patterns 5.3.1 General 5.3.2 Checkerboard pattern 5.3.3 4 % colour window signal patterns Figures Figure 1 – Example of 5 × 5 checkerboard pattern Figure 2 – Example of 4 % white window signal pattern
10	5.4 Measuring points Figure 3 – Example of measuring points forthe centre and multi-point measurements
11	6 Measurement methods for screen door effect 6.1 General 6.2 Preparations Figure 4 – Example of measuring points in azimuth and elevation angles
12	6.3 Measurement procedures 6.4 Calculation
14	6.5 Report
15	Table 1 – Example of report table
16	Annex A (informative)Moving window average (MWA)
17	Figure A.1 – Example of pseudo code of MWA
18	Figure A.2 – Example of MWA conversion of 2D luminance data (image)
19	Figure A.3 – Example of the horizontal cross section
20	Annex B (informative)Contrast modulation and visibility Figure B.1 – Example of MWA image and contrast modulation Figure B.2 – Visibility under various spatial frequency and contrast
21	Annex C (informative)Examples of non rectangular pixel layout Figure C.1 – Example of non rectangular pixel layout
22	Bibliography