Digital Cinema 101 Kay Beck and William Evans Digital Arts and Entertainment Laboratory Georgia State University W. Edward Price Interactive Media Technology Center Georgia Tech
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Digital Cinema 101
Kay Beck and William EvansDigital Arts and Entertainment Laboratory
Georgia State University
W. Edward PriceInteractive Media Technology Center
Georgia Tech
Project OverviewThe film classroom of the future
Digital distribution of video sequences
Selected to support classroom instruction in film Also supports research regarding viewer
responses to image capture formats and projection systems
Project Overview, continuedDigital projectionTo provide large, extraordinarily high-
quality images
Video annotation tools for instructors “John Madden in the film classroom”
Digital Arts and Entertainment Laboratory
Georgia State University
Moving image production and research
Richest image capture formatsDigital video35mm filmHDTV
Digital projection
Interactive Media Technology Center
Research center at Georgia Tech
Focusing on digital media processing in arts, technology, and culture.
What Brings us TogetherInternet2, literally
The Georgia Research AllianceDigital Content Cluster
Rationale for Digital Cinema 101
Many film programs and courses at Internet2 universitiesGrowing in popularityBoth general education and discipline-
specific courses
Film is a rich mediumBut classroom instruction is visually impoverished
Current Instructional Materials
Visually impoverished
Example: Bordwell and Thompson’s Film ArtMcGraw-HillBest-selling film textbook of all time
Current Instructional Systems
Expensive, non-networked
Example: PreView systemKodak and Panavision
Content to be Served: “Film 101”
Sequences tied to Film Art textbookColorDepth of fieldLightingOther cinematography issues
Content to be Served: Film/Video and Digital Imaging Production
Sequences to demonstrate image capture formats and projection systemsHD vs. 35mm filmAspect ratiosArtifacts
Content to be Served: Research Stimuli
Sequences designed to test audience responses to image capture formats and projection devices
Use Internet2 to share data and subjects for moving image studies “Co-laboratory network”
Digital Cinema Today
Disney, Lucas, Technicolor, Texas Instruments - Field Tests31 screens in 10 countriesOver 1,000,000 viewers have seen a digital
movieSystems are somewhat “hacked” together,
prototype equipment
Digital Cinema Today
Source 1920x1080 pixels, 10 bits per pixel
24 progressive scanned or 60 interlaced frames/second
Projected at 1280x1024 pixels
6 Channel Digital Audio
Wavelet compressed
Technology Needs
Storage
Distribution
Projection
Storage
Storage requirements are enormous135 minute movie uncompressed – 1.5 TBStar Wars Episode One was 330 GB as
presented in theatersCurrent compression scheme is ~50
GB/movie
Storage Challenges
Lower data rate without lowering the quality
Better compression schemes designed for film, not video
Distribution
Star Wars 1 – Technicians hand carried disk drives for drive arrays
Now – Ship 7-10 DVD-ROM’s with movie loaded, copy to drive array
Hollywood’s Vision of Distribution
Maybe satellite multicast?
Maybe continue to ship DVD-ROM
Biggest issue to Hollywood – Security
Our Vision of distribution
Secure distribution via IP networks
ChallengesQoSEncryptionAuthenticationCopyright protectionBandwidth
Projection
Currently theatres are using JVC or TI projectors (most using TI DLP). Silicon Light Machines has new technology of interest alsoVery expensiveThis will be a concern for classroom use, but SXGA projectors have adequate resolution (perhaps)
Research Uses over I2
Medical Video
Arts and Humanities
??? Let us know
Digital Cinema 101
Kay Beck and William EvansDigital Arts and Entertainment Laboratory
Georgia State University
W. Edward PriceInteractive Media Technology Center
Georgia Tech
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