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With the [[Oculus Rift]], the commercial interest in HMDs increased. Indeed, over the last few years interest in VR has been increasing, both by researchers as well as consumers. NED technology has a vast range of applications besides gaming and entertainment. It can be applied in education, teleconferencing, scientific visualization, training and simulation, phobia treatment, and surgical training, for example. Immersive VR has also been shown to be effective in the treatment of post-traumatic stress disorder. For the continuing development of VR. It is essential to have a visually comfortable experience, such as diminishing the vergence-accommodation conflict that occurs in most HMDs. The improvement of light field displays is a path to the creation of better and more visually comfortable headsets <ref name=”2”></ref><ref name=”7”></ref><ref name=”8”> Huang, Fu-Chung, Chen, K. and Wetzstein, G. (2015). The Light Field Stereoscope | SIGGRAPH 2015. Retrieved from http://www.computationalimaging.org/publications/the-light-field-stereoscope/</ref>. Huang et al. (2015) wrote that “correct or nearly correct focus cues significantly improve stereoscopic correspondence matching, 3D shape perception becomes more veridical, and people can discriminate different depths better. Vergence and accommodation cues are neurally coupled in the human brain; it seems intuitive that displays supporting all depth cues improve visual comfort and performance in long-term experiences.” <ref name=”7”></ref>
 
With the [[Oculus Rift]], the commercial interest in HMDs increased. Indeed, over the last few years interest in VR has been increasing, both by researchers as well as consumers. NED technology has a vast range of applications besides gaming and entertainment. It can be applied in education, teleconferencing, scientific visualization, training and simulation, phobia treatment, and surgical training, for example. Immersive VR has also been shown to be effective in the treatment of post-traumatic stress disorder. For the continuing development of VR. It is essential to have a visually comfortable experience, such as diminishing the vergence-accommodation conflict that occurs in most HMDs. The improvement of light field displays is a path to the creation of better and more visually comfortable headsets <ref name=”2”></ref><ref name=”7”></ref><ref name=”8”> Huang, Fu-Chung, Chen, K. and Wetzstein, G. (2015). The Light Field Stereoscope | SIGGRAPH 2015. Retrieved from http://www.computationalimaging.org/publications/the-light-field-stereoscope/</ref>. Huang et al. (2015) wrote that “correct or nearly correct focus cues significantly improve stereoscopic correspondence matching, 3D shape perception becomes more veridical, and people can discriminate different depths better. Vergence and accommodation cues are neurally coupled in the human brain; it seems intuitive that displays supporting all depth cues improve visual comfort and performance in long-term experiences.” <ref name=”7”></ref>
 
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==Specifications==
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To manufacture near-eye microlens array-based LFDs, it is recommended to use a large panel of high [[PPI]]. The display panel size is recommended to be about 2.5 inches square, with a PPI of over 2000. This results in a recommended resolution of 5000x5000 per eye.
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90 degrees field of view or higher is recommended for a virtual reality scenario.
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==Prototypes==
 
==Prototypes==
 
[[File:NE-LF prototype.png|thumb|NVIDIA’s near-eye light field display prototype (image: Lanman and Luebke, 2013)]]
 
[[File:NE-LF prototype.png|thumb|NVIDIA’s near-eye light field display prototype (image: Lanman and Luebke, 2013)]]
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The resolution was also a limitation in this prototype. While the screen resolution was 1280x800, the HMD splits the screen into two halves, making the effective resolution decrease to 640x800 per eye. This is too low for a current setting, but it could be improved in the future since this is still in the prototype stage. Indeed, NVIDIA intends to bring this gadget into the market by 2018. While NVIDIA could be developing the new standard for HMDs, it could also mean that by the time the gadget is released to the market conventional VR makers may have solved the problems related to motion sickness in their own gadgets <ref name=”11”></ref>.
 
The resolution was also a limitation in this prototype. While the screen resolution was 1280x800, the HMD splits the screen into two halves, making the effective resolution decrease to 640x800 per eye. This is too low for a current setting, but it could be improved in the future since this is still in the prototype stage. Indeed, NVIDIA intends to bring this gadget into the market by 2018. While NVIDIA could be developing the new standard for HMDs, it could also mean that by the time the gadget is released to the market conventional VR makers may have solved the problems related to motion sickness in their own gadgets <ref name=”11”></ref>.
  −
==Specifications==
  −
To manufacture near-eye microlens array-based LFDs, it is recommended to use a large panel of high [[PPI]]. The display panel size is recommended to be about 2.5 inches square, with a PPI of over 2000. This results in a recommended resolution of 5000x5000 per eye.
  −
  −
90 degrees field of view or higher is recommended for a virtual reality scenario.
      
==References==
 
==References==

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