ANALOG NTSC 3D VIDEO VIEWING - EXHIBITION REQUIREMENTS (2004):
The 3D VIDEO DVDs offered on this site are published as FIELD-SEQUENTIAL
3D and interlaced NTSC (unless PAL is specified) on MPEG2
video format. They feature 'alternating field' (LEFT and RIGHT
eye views are recorded on successive video fields) technology requiring
one of the viewing formats below. DVD systems capable of interlaced
viewing display are required. This is a well-known standard for Standard
Definition analog and digital 3D VIDEO playback. This standard is convertible
to Digital 3D and other 3D formats. Digital 3D video and cinema standards
pertaining to other productions and distribution by Al Razutis are posted
For home exhibition and playback on a standard TV monitor and DVD player, or a computer and DVD player, you will require either the current Sharp 3D Auto-stereoscopic monitors or LCD shutter (LCS) (or LC-imaging) glasses like the high-end i-glasses 3D video that will synchronize to the stereo 'left and right eye views' contained in the alternating fields. You may also project the 3D content using a suitable (eg. VREX or other) 3D projecton device (see below).
For LCS glasses, our preferences are either 'wireless' shutter glasses (with frequency doubling) or for optimal viewing the i-glasses featuring 'imaging' LCD (Virtual I/0) glasses that avoid the annoying 'flicker' effect altogether. These glasses are also used in 3D computer games and VR applications. A wide variety of glasses and prices are available from commercial suppliers.
Autostereoscopic screens by Sharp and others, distributed by DDD (www.ddd.com) and others are elegant solutions to 'glasses' since they can present a 'tuned' (adjustable) 3D volume that suits the LCD screen sizes (15 inches to over 40 inches) and viewing distance.
Comprehensive list of many models of LCS shutter glasses and manufacturers, plus essays on viewing and projection are posted at Christoph Bungert's excellent STEREO 3D.COM site.
All 3D videotapes listed in this catalog are compatible with glasses, autostereo screens, supplied by i-glasses, DDD, 3DTV, VREX, Stereographics, and others..
Note also: "Stereo polarization" of these tapes / DVDs is typically "reverse", so adjust the driver box and glasses, or i-glasses and autostereo settings accordingly (i.e. you must use a system capable of displaying reverse polarization).
For public exhibition (beyond large monitor displays), it is suggested that the DVD be presented on two (cross-polarized with simple filters) video projectors and silver screen. This is the 'maximum resolution' projection, is flicker free and uses inexpensive (50 cents each) polarizing filter glasses. This method has been successfully used in numerous public presentations with standard commercial LCD video projectors (e.g. Sharp, Barco or other brands). The video projectors derive their "left" and "right" eye views from a de-multiplexer which can be obtained from 3DTV, VREX, or more economically from Andrew Woods (Australia). Compare prices.
Another simple method of video-projection is to use the VREX VR-2020, or later video projector which de-multiplexes and line polarizes the left-right views in one (portable) device. This format is also 'flicker free', and has the advantage of being more portable and compact.
Silver Screens, of the same kind used in film projection (eg. 'Da-Lite' screens) are readily available or can be made using silver-aluminum house paint.
For updated information on past public exhibitions of 3D videos (listed on this site), visit the Information - Exhibitions page.
For those interested in stereoscopic 3D VR display technologies, visit Bitmanagement Software's 'Contact Stereo' descriptions and products.