Autostereoscopic monitors

Technical principles of autostereoscopic monitors

A lot of people do not like the idea to wear glasses during stereoscopic visualization. Just for this people are targeted autostereoscopic monitors. The monitors create 2 or multiple viewing zones in witch the seen image differ. User must have each eye in different viewing zone to see the stereo effect. In principle there exist 2 vies zones monitor (user must be in a special position) or multiple view zones monitors (user can be in any position). The 2 view system could be eventually extended by user head tracking system based on image analysis and dynamic viewing zone modification. The most important element of the monitor is an optical mask creating the viewing zones.

 

The monitor emits different picture in different directions. The direction of the image emitting is optionally modified based on user head tracking.

Advantages:
Image in full colors. No need for any glasses. Small and robust device.

Disadvantages:
Expensive device. Reduced resolution in comparison to 2D monitors. Limited number of users.

 

Comparison of different 3D stereoscopic visualization techniques

Technology

Color information

Resolution

Suitable for projection

Monitor based visualization

Number of observers

Cost

Anaglyph

complete lose

middle

yes

yes

high

very low

Active stereoscopy

full

high

yes

yes (no LCD)

restricted

high

Passive stereoscopy

full

high

yes

no

high

middle

Autostereoscopic monitor

full

middle

no

yes

very restricted

high

The table table demonstrates suitability of different stereo visualization methods.

 

 

 
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