1 Digital Stereoscopic (3D) Presentation: How its Done Today and Post Production Implications Glenn Kennel Texas Instruments DLP Cinema® February 23, 2006

2 Disney’s “Chicken Little” using Barco and Christie DLP Cinema® projectors with Dolby Digital Cinema Player™ and Real D Z-Screen™ Digital Content: Dual 24 fps L & R eye in parallel 144 Hz (Triple flash), L/R eye sequential You see 144 frames per second L | L R L R L R | L R L R L R | frame 1 frame 2 LR Silver Screen R L L L R R R Real D Glasses (Circular Polarization) DLP Cinema® Projector Real D Z-Screen Dolby DC Player

3 Shuttered Glasses Dual-stream SERVER DLP Cinema® PROJECTOR Buffer Box IR Emitter 292A Left Eye 292B Right Eye GPIO 37pin NuVision & Stereographics Active Glasses Standard Screen (1.5X gain) 40 ft wide

4 Digital Stereoscopic (3D) Pictures Comparison of capabilities, costs and max. screen sizes Playback Servers from QuVis, Dolby, Doremi and Kodak Display DLP Cinema® Projectors 1 Barco DP100 or Christie CP2000 Picture Quality Exhibitor Costs Max Screen Width 2 (ft) Dual-stream server or 2 servers in sync Single Projector w/Active Glasses Standard screen with 1.5X gain Shuttered LCD glasses 96 FPS Double flash (LRLR) Very Good Std auditorium & screen Standard projector ~$200 glasses ($25 soon?) ~$2000 washing system 40 ft wide (5 ft L) Single Projector w/ Z-screen® Silver screen (2.0X gain) Passive circular-polarized glasses 144 PFS Triple flash Very Good Standard auditorium Standard projector Real D proprietary license, (includes silver screen) < $1 glasses 45 ft wide (5 ft L) Two Projectors w/ fixed polarizers (stacked or side by side) (stacked or side by side) Silver screen (2.0X gain) Passive linear-polarized glasses Excellent Standard auditorium ~$75,000 for 2 nd projector ~$25,000 silver screen ~10 cent glasses 65 ft wide (5 ft L) 2- Basis : 20,000 lumens projector, 1.85:1 aspect ratio, 2.0X silver screen, 1.5X standard screen 5.0 ft L net (to the eye): 1– Projector requirements: min. 20,000 lumens and fast enough to support 96 FPS display

5 Digital 3D Standards  No standards today- proprietary approaches abound  The emerging SMPTE DC28 Digital Cinema distribution and presentation standards can support 3D (2K resolution only) with relatively small extensions  SMPTE DC28 has formed a Stereoscopic Working Group DC28.40 (chair: Matt Cowan)  Core User Requirements: –Use existing DCDM & Packaging documents with min. extensions –Provide a single distribution master for all servers and presentation systems –Support playing a single channel for 2D presentation –Keep file size as small as possible, without sacrificing quality –DCI spec- 2 streams must not exceed total bit-rate of 250 Mbps

6 3D in Post Production  Lower light level (~5 ft L vs 14 ft L) darkens the picture –Requires unique color grading and/or unique display LUT –Polarizers shift color, so must grade through them  Dual-link input to projector –200 ns jitter tolerance between links –YC B C R (Rec. 709) or YC x C z (JPEG2000 ICT)  Packaging for 3D- Will left and right eyes be encoded as separate or interleaved JP2K streams?  Motion blur helps double flash (96 Hz) presentation work –If motion blur is not used, triple flash (144 Hz) smoothes motion, but with tradeoff in display resolution (max.1628 x 880 for 1.85:1)  Ghost cancellation pre-processing is required for Z-Screen™ –Today, this is rendered into the master –Real D is building an in-line box between the server and the projector