Stereoscopic Player and Stereoscopic Multiplexer

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Stereoscopic Player andStereoscopic Multiplexer

• S3D-Today
• 27. - 28. November 2006
• Munich, Germany

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Overview

• Part 1 Stereoscopic Player
• 3D playback on PCs
• Encoding 3D movies
• Stereoscopic Player features
• Part 2 Stereoscopic Multiplexer
• Stereoscopic Multiplexer concepts
• Fields of application

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About 3dtv.at

• Focus
• Stereoscopic video playback
• Stereoscopic video recording
• Products
• Stereoscopic Player
• Stereoscopic Multiplexer

• Location
• Linz, Austria
• www.3dtv.at
• Timeline
• Development started 2001
• Completed diploma thesis in June 2004
• Company founded in 2005

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3D Video Playback
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• The questions
• Why do we need 3D playback software?
• Why not use any 2D video player?
• The challenges
• There are many 3D viewing methods
• Different resolutions are required to accommodate
  to hardware performance
• The solution
• Real-time format conversion
• 3D playback software

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Real-time Format Conversion

• Real-time format conversion
• avoids vast number of files
• requires full color left and right views
• gives best quality
• Suitable source formats

Interlaced (Field Sequential)
L
L
R
R
Over/Under
Side-by-Side
Dual Files
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Dual Files, Dual Streams

• Dual files
• Efficient use of multi processor systems
• Circumvent codec limitations
• Playback synchronization is prone to errors
• Performance problems when located on same media
• Dual streams
• Avoid performance problem of separate files
• 2D video players show the left video stream only
• Only available for Windows Media format

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Format Selection

• Stereoscopic Player asks for the format when
  opening a new video
• Stereoscopic Player remembers settings for each
  file in the built-in video library

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Stereoscopic Metadata

• Fundamental idea
• It is hard for users to find out the proper
  layout
• The content creator knows the proper layout
• Ship video files format description (
  metadata)
• Stereoscopic Player
• reads embedded metadata in Windows Media files
• reads metadata file in same folder as the video
  file
• contacts metadata server
• The official metadata server is maintained by
  3dtv.at and provides settings for most commercial
  3D-DVDs and some popular video files.

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Creating Stereoscopic Metadata

• Use the Windows Media Stereo Attribute Editor to
  embed metadata in Windows Media files (available
  for download on the 3dtv.at website)
• Click File gt Export in Stereoscopic Player to
  create a separate metadata file (for all other
  formats than Windows Media)

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Improve user experience deliver your movies
with metadata!
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Creating a 3D-DVD

• Side-by-side or over/under file
• 2x PAL/NTSC resolution or better
• Embedded metadata or stereoscopic metafile
• Field-sequential version for legacy 3D system
• 50/60 Hz TVs shutter glasses
• Hardware demultiplexer two projectors
• Anaglyph version
• No stereo hardware required
• Limited color reproduction
• 420 color subsampling reduces quality

ROM Section
Video Section
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Stereoscopic Player Viewing Methods
Anaglyphs
Native support Any graphics card, any display
Shutter glasses
Software pageflipping (ATI and Intel)NVIDIA
stereo driver / OpenGL
Polarized projection
Native dual screen output supportNVIDIA stereo
driver / OpenGL
And many more
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Stereoscopic Player Viewing Methods

• Autostereoscopic displays (dual view)
• Native support for horizontally interlaced output
• Native support for Sharp 3D displays
• Autostereoscopic displays (multi view)
• More than two views are required
• Image acquisition difficult
• Interpolation of images is CPU-intensive and not
  perfect
• Not supported in Stereoscopic Player yet

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NVIDIA Stereo Driver Configuration

• Stereo driver
• Install NVIDIA consumerstereo driver
• Version number ofgraphics and stereodriver must
  match
• Configure and activatethe stereo driver
• Stereoscopic Player
• Select NVIDIA Stereo Driver viewing method

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Pageflipping via Stereo Driver
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Native Dual Screen Output
1.
2.
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Dual Screen Output via Stereo Driver

• Graphics driver set to clone mode
• Normal 2D operation possible

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Stereoscopic Player Features

• General features
• File playback
• 3D-DVD playback
• Capture device support
• Intuitive user interface
• IR remote control support
• Integration features
• Command line control
• OLE Automation
• Customization tool available

• Windows Media features
• Web stream playback
• Digital Rights Management
• Multi-channel audio
• Multiple audio languages

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Stereoscopic Multiplexer Concept
Right stream
Left stream
Combined video stream
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Fields of Applications

• Live preview during recording
• Stereoscopic Multiplexer loaded in Stereoscopic
  Player
• Live broadcasts
• Stereoscopic Multiplexer selected as capture
  device in Windows Media Encoder, running on the
  server
• Stereoscopic Player running on the client
• Watching 3D recording
• Transferring left and right tape to hard disk not
  required
• Stereoscopic Multiplexer synchronizes tape drives

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Supported Hardware

• Camcorders
• DV camcorders
• HDV camcorders (next version)
• Digital cameras
• Industrial Firewire cameras
• Industrial USB cameras
• Webcams
• Others
• Analog cameras via frame grabbers
• Many other WDM-compatible capture devices

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Thanks for Your Attention

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• QA

Visit us at http//www.3dtv.at!