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Barco CADWall - page 1
Ster eoscopic Pr ojection 3D PROJECTION TECHNOLOGY innovators in image processing Stereobrochure 02-06-2003 15:38 Pagina 1 ...
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Barco CADWall - page 2
right eye left eye image right eye image stereoscopic projection left eye The Principle of 3D Imaging Due to the 4-6 cm (1.6-2.3 inch) separation between the eyes , each eye has a slightly different viewpoint. The images from these two different viewpoints are sent to the brain and this difference, which is termed parallax, is interpreted as depth ...
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Barco CADWall - page 3
ity Solution for Ster eoscopic V iewing Barco offers a complete range of high-end projection platforms covering all technologies - CRT , LCD and DLP™ - for active and/or passive stereo applications. High quality optional application-specific optimizations for multi-screen stereoscopic projection onto flat, curved and dome-shaped screens result fr ...
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Barco CADWall - page 4
1 DLP ™ Projector 1 CR T Projector P air of passive stereo glasses Images at double refresh rate on a non-depolarizing screen Stereo-enabled DLP™ or fast-phosphor green CRT projector ZScreen The ZScreen for a DLP™ (Digital Light Processing™) projector such as the B ARCO G ALAXY is smaller because it must cover only one lens, while a CRT pro ...
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Barco CADWall - page 5
P air of passive stereo glasses Non-depolarizing screen T wo CR T or DLP ™ projectors With T wo Projectors One projector displays the left eye information and the other displays the right eye information, both at a standard refresh rate. A polarizing filter mounted in the optical light path of each projector ensures that the correct information p ...
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Barco CADWall - page 6
P air of passive stereo glasses Images at double refresh rate on a non-depolarizing screen T wo 3D optimized LCD projectors Linear-polarized Barco glasses are matched to linear- polarized Barco projectors, and they offer an excellent quality-to-price value for stereo viewing with large audiences . Circular Polarization With circular polarization, t ...
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Barco CADWall - page 7
Single Projector , Double Refresh Rate The viewer wears special eyewear comprising two IR- controlled LCD light shutters working in synchronization with the projector . When the projector displays the left eye image, the right eye shutter of the active stereo eyewear is closed, and vice versa. The single projector used must be capable of displaying ...
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Barco CADWall - page 8
Ster eo LCD CR T DLP ™ Lumens With stereo projection, light output is at least halved in the process of creating a separate left and right eye picture. Projectors employing different technologies but with the same ANSI lumen specs can give quite different stereo lumen results. The stereo lumen is the only practical value for accurately measuring ...
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Barco CADWall - page 9
> ACTIVE STEREO As the projector sequentially projects the left and right eye images, the duty cycle is 50%. However, the extra blanking between the left and the right image that is required to ensure a good stereo separation further diminishes the light output , resulting in an efficiency of about 45% . Due to polarizing filters that are utiliz ...
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Barco CADWall - page 10
Mirr or Wide Although the projection screen is one of the key components in a display system, its significance is often overlooked. The type of screen technology employed is critical for multi-channel displays and especially for passive stereoscopic projection . In close collaboration with the world’s leading screen suppliers, Barco is constantly ...
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Barco CADWall - page 11
P ASCAD Mechanical Setup Channels Stereo ● Rigid or ● Flexible Screen ● front ● single ● none ● flat ● rear ● multi* ● active ● cylindrical curved ● passive linear ● spherical curved ● passive circular ● conical curved * blending optimized Barco’s Transportable I-S PACE TM 4 (Photo Courtesy of Dassault Systèmes Group ...
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Barco CADWall - page 12
Barco’ s Projector Alignment T ool For easy and fast alignment of complex multi-screen projection systems to their maximum capabilities, Barco has developed its own proprietary dedicated software. With an intuitive user interface, Barco’s Polaris software is driven by multi- pipe, multi-channel image generators to calculate and generate user-sp ...
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Barco CADWall - page 13
Foto courtesy of Fraunhofer IAO, Germany Foto courtesy of Fraunhofer IAO, Germany Wizar d T racking Software As a user’s head moves, turns or tilts in a virtual environment, the computer-generated image he sees must continually update accordingly with no noticeable lag, jitter or distortion. If a user employs a wand to interact with the environme ...
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Barco CADWall - page 14
Renault - Italdesign - Pharmacia - Cineca - ELF - Volvo - General Motors - Italdesign - National Center for Atmospheric Research - Center for Human Simulation - SGI - EDS - Boeing - AGIP - University of Vienna - Lancia - Schlumberger - Volkswagen - PSA - University of Munster - Fraunhofer Institut - Skoda - Cineca - University of Tokyo - FIAT - SAI ...
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