In terms of current technical conditions, the vision of civil VR is still quite narrow. In terms of the VR performance that VR can achieve, even the most expensive VR head display can only provide a view that is limited to about 110 degrees. In reality, people's visual field of vision is more than 180 degrees wide. Although most of the early industry enthusiasts can overcome this problem, a research team from Microsoft decided not to ignore it.
“You don’t realize how many black edges you actually saw when playing Oculus or other VR heads,†said Robert Xiao, an associate doctoral student at Carnegie Mellon University in the arts and technology (Ars). Technica said in an interview, "When you put your head on, the first thing your eyes do is focus on the middle part of that bright screen, so you don't realize how much your vision is dark. Replaced with the blank part."
In 2015, Shaw entered the Microsoft Research Institute in order to complete his research at the Human-Computer Interaction Research Institute at Carnegie Mellon University, and decided to use these two black borders as his first large-scale research project at Microsoft. Called "SparseLightVR". With the help of senior researcher Hervoye Benko, Shaw has developed a solution that most people can afford: fill the darkness of the VR head with an array of two low-cost LED lights. space. (The results of their research were shown at the 2016 Human-Computer Interaction Exhibition last week)
The internal structure of SparseLightVR (there is no transparent plastic plate that will eventually be added to scatter light)
Image source: Microsoft Research / ArsTechnica.com
80 diodes can increase the field of view by 60 degrees
Undergraduate and Xiao invented the device called "Sparse Peripheral Display" based on the Oculus Rift "DK2" head-mounted experiment, which provides a field of view that is only 90 degrees wide (the retail version released in March increased this number to 110). degree). The two researchers placed a circle of LED lights arranged in a specific way around the lens on the head, and added a transparent lens to scatter the light they emitted. When the world in VR changes, the system will real-time. The color and brightness of the LEDs are adjusted according to what is displayed on the display, which provides an additional field of view of a total of 60 degrees. Since there are only a few pixels of data to process, this does not take up too much processor resources.
Finally, the appearance of the plastic plate is added. Image source: ArsTechnica
Xiao said that regardless of whether the VR device is controlled by the motion of the head, controlled by a button, or simply automatically plays a VR experience like a virtual roller coaster, this technology can reduce the vertigo caused by VR and Improve the user's situational awareness. This ability to reduce the sense of vertigo especially surprised Xiao, because until this phenomenon was discovered, all the research projects had opposite conclusions on the relationship between the display range and the vertigo.
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