CERTIFYING 3D EXPERIENCES IN THE HOME

Transcription

1 CERTIFYING 3D EXPERIENCES IN THE HOME

2 Our Goal Deliver exceptional studio color and picture quality to your home. 2

3 THX Display Certification: Intense Testing 200 Tests, 400 Data Points Prototype Development THX Testing Pass / Fail Final Firmware Locked Mass Production Production Compliance Prototype developed to THX specifications Over 200 tests performed to ensure quality Products that pass are THX Certified THX Certified Display firmware programmed and locked Displays are manufactured to precise specifications Product is retested to ensure THX compliance 3

4 THX Display Certification Testing Overview 300 Test Categories, 200 Tests, Covering 400 Data Points 4 4

5 Without THX Certification Uneven on-screen brightness with dark areas. As people or objects onscreen move, they may appear unnaturally dim in some locations. * This TV did not pass THX certification. 5

6 With THX Certification THX requires even brightness uniformity across the screen. A THX Certified TV will deliver a consistent light level for movies and TV programs. 6

7 THX Viewing Modes THX Cinema: Reproduces Rec.709 and Studio Luminance Recommended for dark home theaters THX Bright Room: Sets luminance, blacks, gamma and backlighting for room lighting Best for demoing on retail floor 7

8 Evolving 3D World Industry is striving to deliver the best 3D experience Good 3D can be fantastic Good 3D enhances the story being told Good 3D does not distract from the story 3D technology itself is not usually part of the story 8 8

9 Seeing in Three Dimensions The world has height, width and depth and objects move around Eyes and brain work as a system Familiar clues give us a sense of depth Light and shade Relative size In or out of focus Occlusions 9

10 Seeing in Three Dimensions As we look around our eyes focus on objects of interest Eyes converge for closer objects Eyes parallel for distant objects Eyes should not diverge abc

11 Creating 3D Video Viewer Foreground / Close Screen Plane / Middle Background / Distance Slightly different images are recorded for left eye and the right eye 3D video must deliver images that accommodate the natural viewing experience but on a flat screen It is important to distinguish program quality from presentation quality 11

12 Creating 3D Video Left and right images must not spread excessively (Extreme Divergence) Point of focus should not be extreme or shift rapidly (Sudden Depth Change) Objects must have natural relative size (Object Scale) Objects must move out of sight naturally (Occlusions) Objects place in front of the screen must not touch the edge of the screen (Edge Violation) 12 12

13 3D Delivery Formats Frame compatible (reduced resolution) Side by Side (most common) Top and Bottom Checkerboard Alternate line Alternate column Frame Packed (BluRay) Full Frame Sequential 1920x1080p 24fps 13

14 Challenges for Display Manufacturers Accurate color is difficult to achieve in 3D Use of 3D glasses requires detailed picture offsets for proper 3D picture performance Inconsistent 3D glasses performance is the main cause for viewer fatigue Crosstalk ghosting or double images often degrades 3D experience 14 14

15 THX 3D Display Certification 15 15

16 Introducing THX 3D Display Certification 16 16

17 THX 3D Certification Testing THX analyzes Left/Right eye images independently, ensuring accurate images 30 Test Categories, 400 Bench Tests, 1,000 Data Points 3D Display certification tests the system as whole, glasses included 17 17

18 THX 3D Display Certification Testing Process 400 Tests, 1,000 Data Points Prototype Development THX Testing Pass / Fail Final Firmware Locked Mass Production Production Compliance Prototype developed to THX specifications Over 400 tests performed to ensure quality Products that pass are THX Certified THX Certified Display firmware programmed and locked Displays are manufactured to precise specifications Product is retested to ensure THX certification 18 18

19 THX 3D Display Testing Certification Overview 19 19

20 THX 3D Certified Displays Highest 2D quality THX 3D Cinema Mode preset Calibrated at 4fL to 9fL depending of display type Correct color and grey scale measured through glasses Minimum crosstalk between eyes Reliable auto synchronize for all formats Automatic synchronization of glasses 20

21 THX 3D Home Theater Experience 21 21

22 3D Theater Design: Screen Size Keep screens larger rather than smaller field of view Maintain balance between involvement and sharpness On projectors with big screens need more light Do not block the sightline of either eye Reduces 3D effect Leave room to move around in the seat 22

23 3D Theater Design: Seating Angles Keep seating within a recommended 30 zone, 45 max Occlusions must be natural with far objects passing appropriately behind near objects Avoid having to turn head more than about 5 (a little bit) Be aware of off-axis quality loss when using high gain screens and LCD panels 23

24 Movie theater screens are beyond infinity focus (>~15ft) Vergence accommodation easier for a distant screen Objects at and behind screen are already at infinity, eye axis parallel Eyes converge less often to focus on a closer object Eyes need less re-focusing A bigger screen further away will be better for 3D than a smaller screen closer 24 24

25 3D Theater Design Cinema vs. Home Home theater screens are closer than infinity focus ~15ft Control the point of focus with the movie not visual clutter Avoid visible distractions within a 160 angle to front, 120 min Avoid distracting objects near screen Avoid glossy bezels or screen surfaces Avoid visible light sources No ambient back light Avoid light or colorful floor, ceiling or walls Avoid curved screens 25 25

26 3D Theater Design: Screen Environment Best 3D practices are an expansion of best 2D practices Faults in 2D set ups are greatly exaggerated in 3D 3D images are not very bright 3D movies are color timed for 3.5fL 4.0fL 100% peak white at 3.5fL 4.0fL measured from the viewers eyeball (glasses included) Therefore ambient light control is critical 26

27 Summary The evolving 3D world presents unique challenges to home entertainment viewing THX Certification sets performance benchmarks for a quality 3D experience Our tips for set up help to ensure the best experience with 3D technology in the home We continue to work with academic and professional organizations to learn more about 3D. The latest research informs our programs 27 27