| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 1 Scope 2 Normative references 3 Terms, definitions, abbreviated terms and letter symbols 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 3.2 Abbreviated terms 3.3 Letter symbols Tables Table 1 \u2013 Letter symbols (quantity symbols and units) <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 4 Standard measurement conditions 4.1 Environmental conditions 4.2 Dark room conditions 4.3 Warm-up time 4.4 Measurement coordinate systems Figures Figure 1 \u2013 Cartesian coordinate system and spherical coordinate systemfor the specification of the viewer’s gazing (viewing) direction <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 4.5 Standard conditions for the measuring equipment 4.5.1 General Table 2 \u2013 Distinguishing types of DUT, imaging conditions, number of involved images and methods for suppression of display matrix modulations <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 4.5.2 Conditions of measuring equipment Figure 2 \u2013 Typical relative spectral response of a CCD detectorarray without IR-blocking filter (B\/W camera) and a luminance meterwith a sensitivity according to CIE V(\uf06c) <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 4.5.3 Standard measurement locations 4.6 Test pattern <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 5 Measurement methods 5.1 Purpose 5.2 Equipment and conditions 5.3 Measurement procedure Figure 3 \u2013 Measurement setup <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 5.4 Calculation 5.5 Report <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Annex A (informative)Imaging and sampling conditions of sparkle pattern A.1 Oversampling <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | A.2 Undersampling Figure A.1 \u2013 Examples of sparkle image from the same DUTunder different measurement distances <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Annex B (informative)Filtering methods for removing periodic modulations from the image B.1 General Table B.1 \u2013 Filtering method capabilities for removing artifactsrelated to display matrix elements <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | B.2 Filtering methods B.2.1 Filtering in spatial domain Figure B.1 \u2013 Display matrix element (grey square) in relation to the matrixof the imaging LMD detector elements (squares according to LMD pixel pitch)for the case of oversampling with an image sampling ratio of RS = 3,5 <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Figure B.2 \u2013 Examples of sparkle patterns at RS = 4,3 before applying an MWA filter (left) and after applying an MWA filter (right) <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | B.2.2 Filtering in frequency-domain Figure B.3 \u2013 Electronic images of the DUT (i.e., display matrix elements with AGL, left) and frequency components of that image used as basis for sparkle evaluation <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | Annex C (informative)Hardware parameters that affect the sparkle contrast C.1 LMD aperture setting C.2 LMD focus Figure C.1 \u2013 Example of the variation of the MTF of the imaging LMD under different F\u2011numbers as a function of spatial frequency of LMD pixels <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | C.3 Condition to avoid aliasing <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | Annex D (informative)Sparkle contrast measurement with display mock-up D.1 Display mock-up D.2 Measurement Figure D.1 \u2013 Examples of display mock-ups <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Figure D.2 \u2013 Example of measurement configuration <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Annex E (informative)Calculation of sparkle contrast by the difference image method E.1 Statistical background E.2 Measurement procedure of the difference image method <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | E.3 Calculation of sparkle contrast by the difference image method <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Annex F (informative)Calculation of sparkle contrast by the pixel power deviation method F.1 Pixel power deviation description F.2 Measurement procedure for the PPD method <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | Annex G (informative)Elimination of low-frequency radiance variation from the sparkle pattern G.1 General G.2 Normalization of the local average radiance of segmented sparkle pattern Figure G.1 \u2013 Example of the segmentation of the measurement field for the preparation of the elimination of the low-frequency radiance variations from the sparkle pattern <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | G.3 Calculating the mean or median value of the segmented sparkle pattern <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Electronic displays – Evaluation of optical performance. Display sparkle contrast<\/b><\/p>\n |