Difference between revisions of "Three-dimensional display"
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3D displays can be world-fixed, like mounted on a desk, or they can be head fixed, like built into a [[VR headset]]. | 3D displays can be world-fixed, like mounted on a desk, or they can be head fixed, like built into a [[VR headset]]. | ||
| + | 3D is more than just stereoscopic flat images. | ||
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| + | ==Approaches== | ||
There are multiple ways to get a 3D display to show proper focus, thereby giving proper [[accommodation]] cues. The two main ways are [[holographic display]]s and [[light field display]]s. A light field display sends focal stacks of images based on [[ray]]s to the eye. | There are multiple ways to get a 3D display to show proper focus, thereby giving proper [[accommodation]] cues. The two main ways are [[holographic display]]s and [[light field display]]s. A light field display sends focal stacks of images based on [[ray]]s to the eye. | ||
Multifocal displays are displays that show multiple focus images at the same time, so that the eye can choose what to focus on. | Multifocal displays are displays that show multiple focus images at the same time, so that the eye can choose what to focus on. | ||
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A partial form of 3D displays is to use stereoscopy or autostereoscopy using parallax barriers. | A partial form of 3D displays is to use stereoscopy or autostereoscopy using parallax barriers. | ||
Revision as of 01:11, 19 July 2024
A 3D display is a type of display that can show different optical depth at the same time. The purpose of a 3D display is to enable a 3D human-computer interaction loop, which is used in 3D software for design and sharing ideas.
A 3D display shows depth cues based largely on focus and/or stereopsis. A light field display is a type of display that can show full proper focus.
3D displays can be world-fixed, like mounted on a desk, or they can be head fixed, like built into a VR headset.
3D is more than just stereoscopic flat images.
Approaches
There are multiple ways to get a 3D display to show proper focus, thereby giving proper accommodation cues. The two main ways are holographic displays and light field displays. A light field display sends focal stacks of images based on rays to the eye.
Multifocal displays are displays that show multiple focus images at the same time, so that the eye can choose what to focus on.
A partial form of 3D displays is to use stereoscopy or autostereoscopy using parallax barriers.