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10 Sources

Cameras
www.starkelectronic.com/vx0095.htm
www.qkits.com
www.jameco.com
www.electronickits.com/
Interlace and Page-Flipping Shutter Glasses
www.kasan.co.kr 3D-Max, Kasan Electronics (Apparently no longer a useful link.)
www.vrex.com VR Surfer
www.stereographics.com Simuleyes
www.nuvision3d.com 3D-Spex
RF Modulator
www.jameco.com
VGA Converters
www.avtoolbox.com
www.tvone.com/upconpage.shtml
www.startech.com/ststore/catlist.cfm?category=v&topbar=topbark.htm
2.4GHz Transmitters and Receivers
www.web-tronics.com/24avsenrecsy.html
www.northcountryradio.net (No longer in business.)
home.earthlink.net/~efficienttec/etwebpage/transmit.htm
www.surveillance-spy-cameras.com/transmitter-receiver.htm (No longer in business.)
Circuit Level Components
www.digikey.com
www.jameco.com
Printed Circuit Boards
www.expresspcb.com


Links
www.epanorama.net/links/video.html (Actually, anything on epanorama.net is worth checking out, and there's a lot there.)
www.stereo3d.com/hmd.htm
www.ntsc-tv.com
www.neotek.com/3dtheory.htm
http://cyborganic.com/People/mister3d/chaff/3d_theory.html (No longer there.)
http://www.ray3d.com/
http://dogfeathers.com/3d/stereojps.html
www.ee.washington.edu/conselec/CE/sp95reports/mortenso/project.htm
http://vered.rose.utoronto.ca/people/david_dir/DND93/DND93.html
http://www.3dimagetek.com/encoder.htm

August 2001 issue of Poptronics:
VIDEO VIEWERS
By J. Ronald Eyton; pp. 25-29, 56; a construction article featuring an "infrared video viewer", and a "video stereogram viewing system".

April 2000 issue of Poptronics:
Amazing Science - Telepresence
by John Lovine; pp 49-51, 56; an R/C vehicle-based roving video system (non-stereo, unfortunately).

Stereo vision software for robotics:
http://www-2.cs.cmu.edu/~cil/v-source.html
https://sourceforge.net/projects/rodney/


 

Glossary

Board camera
A fully functional camera, composed of one or more printed circuit boards, usually provided without an external case

CMOS
Complementary Metal Oxide Semiconductor; a type of semiconductor composed of positive (PMOS) and negative (NMOS) elements, which are operated in such a way the CMOS chip requires much less power than conventional transistor circuits. CMOS chips are commonly used in battery-powered devices.

Composite Video
Also called NTSC video; A single video signal that is composed of four other signals: luminance, which determines brightness, blanking, which turns off the beam during horizontal and vertical retrace, synchronization, which determines when the next display will start, and chrominance, which detemines color of the display.

HMD
Head Mounted Display is a video display device that is often worn like a helmet, with the visual display mounted where a visor would normally be. The HMD is often used for stereoscopic displays when small LCD screens are installed that can be dedicated to each eye.

Horizontal Sync
A synchronizing pulse used to control the horizontal sweeps of the monitor's electron beam. During each horizontal sweep one line of video is painted on the screen.

Interlace
Describes the method of displaying a complete fame of video as two separate fields, where one field contains the even lines, and the other contains the odd lines. The lines of each field are interleaved, making a complete picture.

Line Doubler
A device that converts NTSC, or S-video and related video formats to VGA format. In order to convert the original video signal's 15.75KHz horizontal line rate to VGA's 31.5KHz rate, each line of the original signal is duplicated at the VGA rate. Each 240-line field of the original video signal becomes a 480-line VGA frame.

LCD, Liquid Crystal Display
A display material that consists of a liquid crystal solution squeezed between a pair of polarizing sheets. An electric current will cause the crystals in the solution to align themselves in such a way that light is blocked. When the current is removed the crystals resume random orientation, allowing light to pass through the material.

NTSC
National Television System Committee; the name of the standard used in North American television transmission (also the name of the organization that sets the standard). NTSC specifies a display rate of 29.97 frames per second. Each frame consists of two fields, one containing odd numbered lines, and another containing the even numbered lines. The resulting picture consists of the two "interlaced" fields, with the television monitor's phosphor persistence keeping the odd field displayed while the even field is written.

PAL
Phase Alternating Line is a video transmission standard used in Europe. The most obvious difference between NTSC and PAL is the number of lines per frame, and the number of frames displayed per second. NTSC provides 525 lines at 60 fields (30 frames) per second, and PAL provides 625 lines at 50 fields (25 frames) per second.

Stereoscopic
Refers to viewing a scene with two eyes, where information is taken from the environment, or provided in a representational view that allows depth and spatial relationships to be discerned. The term is commonly used to differentiate between a "flat" two-dimensional representation of a three-dimensional scene, and one that provides the spatial cues, making it almost equivalent to a scene in real three-dimensional space.

Vertical Sync
A synchronizing pulse that is derived from (or accompanies) a video signal, and used to indicate to the monitor when it's time to move the electron beam to the upper left corner of the display to start the next field.

VGA
Video Graphics Adapter. Refers to a) a circuit card that translates text and graphics in a PC's memory to signals that display that information on a computer monitor; b) the video signal format that describes the red, blue and green video, and horizontal and vertical synchronization signals as well as the signal timing used to display video on a PC monitor.

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