Please share your opinion: For my knowledge (didn't find references), there are 4 types of Augmented Reality:
- Glass-See-Through: like Google Glass or the fancy cars "Head-up Display" The computer generated information appears in a transparent glass or acrylic between your eyes and what you look at.
- Video-See-Through: like cars rear cameras showing trajectory, like video games with knetic, architect color changing App and infrared car cameras with animal detection. The computer generated information appears in a video where you look at.
- Indirect: A QR code makes whatever is with the QR code go to
the computer screen
- Spacial: Like VeinViewer. The computer generated image is projected onto the target and there is no need of QR codes, goggles, glasses or video screens
more can be found here:
https://en.wikipedia.org/wiki/Augmented_reality#Hardware
This is a very interesting question and one I saw discussed as a presentation at a recent conference. The definitions between Virtual Reality, Argumented Reality and Mixed Reality are somewhat overlapping and there isn't neccesarily a clear boundary.
Anyway one i would consider as another form if AR is creating holograms without the need of glasses, there are a few ways to do this, I have included a some below.
https://en.m.wikipedia.org/wiki/Time_Traveler_(video_game)
https://youtu.be/-lyTasMAYic
https://diyhacking.com/diy-hologram/
https://en.m.wikipedia.org/wiki/Musion_Eyeliner
Hope this helps.
HI Michael,
You are right, the boundary between the different definitions is unclear. For me I tend to now use the term Mixed Reality when there is a higher level of interaction between real and virtual aspects - sometimes referred to as blended spaces. For example when the glasses can also interact with real objects etc beyond just looking at them and adding graphics/sound. Although the Milgram & Kishino Mixed reality continuum definition really places everything along a line, from real to purely virtual - with anything from VR to AR being classed as mixed reality.
https://en.wikipedia.org/wiki/Mixed_reality
The idea of holograms without glasses is also one like you that I would add to the list and is a technology I find very exciting for many applications. It would be very nice to get rid of glasses especially in more collaborative scenarios.
https://en.wikipedia.org/wiki/Mixed_reality
While maybe beyond the scope of the original question ill would like to explore the idea of "Mixed Reality" further. I also agree with what you have identified as the main two definitions of "Mixed reality, both the continium concept as one, and increased level of user interaction with the real world over AR the another.
One question about how your current definition of "Mixed Reality" is what do you define as the cross over from AR to MR . For example is it just limited to physical interaction with real world?
For example, I recently saw a panel discussion about AR and the social impact when the device starts to understands it surrounds such as identifying point of interest to the users like historical information about a site, etc, currently this is commonly refered to as AR
This made me think of this situation, now let say you have glasses on and it can identify potential hazards in the environment. For example, hazards that a fire fighter cant see due to smoke so the glasses provides a 3D virtual representation of its scanning environment as an overlay of the smoke, what term do we use now AR/VR or MR? I know this is a blue sky example but it begs the question of where the line is drawn , personally I don't have a firm opinion but my initial instict says to categorise as MR
Dear Michael Mortimer, I believe that the hologram - without the need of goggles, glasses, without having to look through videos ou using QR Codes - would fit into the spacial augmented reality. Like the VeinViewer
AR applications may be categorized into three main types
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