In addition to SIGGRAPH and the other conventions you mentioned, the Society for Information Display (SID) and Augmented World Expo (AWE) are also some really great sources of information with regards to 3D displays.
10 years has now passed from 2014 to 2024, The closest we have come to ubiquitous "holographic" displays would be the big tech company HMDs like Apple Vision Pro or Meta Quest Pro. Smartphone AR is pretty good now. And honorable mention would also be Looking Glass Factory for their amazing volumetric displays. Tons of great research and prototypes in the last 10 years in this area of display technology as well. Shout out to Google for their 2020 SIGGRAPH Immersive Light Field Capture hardware and software work!! I'm a big fan of it.
Here you go buddy! (link below) I have delayed creating the rest of the first season to start a business around a new invention I made. I will bring the show back as part of this business's marketing in the future. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-_tBNxoCu42I.html
+Chauncey Frend OMG, never thought I would get such a quick reply. Thanks so much! I should let you know I am currently using your videos to work on making my own pyramid display for a school project and I'm interested in incorporating this display in an interactive way via gameplay using the Unity5 engine. I just want to say thank you so much because out of all the research I found your videos have been so soo soooooo helpfull!!
how much time till we get the technology comercial, i mean in practice, in the place of the pc monitors we use today? im tottaly ignorant on the subject, but im not only thinking about it like some cool stuff because it will not only give us real 3D gaming image, but it will also take away a lot of limits like image size, resolution scale and etc... in practice i mean. It looks like this plasma idea fits it like a glove cus i saw it for real.
You are absolutely right, I wish I knew more about the physical nature of light in regards to holograms. The context for this video comes from the computing industry perspective and is a narrow explanation of the craft.
Thanks Adrian, I'm always willing to learn more. This video has allowed a few industry veterans to extend my understanding of the physics/engineering angle of true holograms. Where I work many students throw the word "holograms" around loosely and I made this to help with their understanding of computationally generated illusions referred to as "holograms."
That's the point! You can't call them holograms because they aren't !! It's like calling pasta pizza, because they both need a dough to be made! But,guess what? Even the dough doesn't have the same ingredients and the end result is totally different. I understand that the video is relatively old but I don't get why you didn't study in the first place.. :P Also, while some may give the illusion of a volume, other techniques are really making a volumetric light field. You might call me a grammar pedant, but some words have a precise meaning and they can't be exchanged. You're not helping by telling them a lie! It's only even more confusing, for them and for everybody else.
Great video..I tried pepper's ghost effect ( not a pyramid ) with a single 45 degree glass screen, mirror on the floor and laptop for video. It didnt seem like 3D hologram to me. It was like just reflecting of video from laptop with little bit depth and less sharpness. Real 3D projector with 3D recorded movie will make the difference?
Yavuz Zengin Good testing, yes the laptop with the glass alone will only seem like a reflection and not a real 3D hologram. That is ok for some people, but I have tried using a 3D enabled projector with 3D glasses showing a 3D video and it worked. One issue I noticed was that the reflection was dim because you loose brightness doing a reflection and 3D glasses also take about brightness. You might consider use 50/50 or 70/30 glass to reflect more light. Good luck!
Chauncey Frend I must solve this issue without 3D glasses like some event companies did. (I am basically trying to do a dj hologram show at small club with min. budget) 8' x 20' screen right above the dj booth and having the dj hologram in 1:1 scale. 1/8" translucent acrylic panels not too much cost. I made many searches about these type of shows. They dont hide the hologram trick and system configuration but nobody gives detail about projector specifications and video format.:_) all i know is min 5000 lumens projector ....thats wht i am trying to learn actually. You seem like real professional who knows hologram stuff and i appreciate your help to dummies like me...)))
Yavuz Zengin I see what you are going for. Kind of like the Tupac one that AV Concepts did at Cochella in 2012? I have never done one that big, but a good tip for you would be to know that light is naturally additive. So if you need more lumens you can double up your projectors. If you have two 5000 lumen projects you will get around 10,000 lumens of light at your disposal. So for setup just clone your video signal and send it to each projector and line them up so it doesn't look blurry and this should appear much brighter. It will still not appear to be in 3D because it is just reflecting a flat screen, but anything that is black will be transparent.
I used a Dell S300 DLP Projector beneath a translucent rear projection screen laid flat. The effect can be achieved also by laying flat any common LCD/OLED display.
Does anyone know where the research for this laser plasma emission technology is published? I've looked everywhere for work published on this by Japan and I cannot find anything
I just took a look on Google Scholar to see where that paper was that I mentioned in the video. Try the term "laser induced plasma voxels" instead. Seems like this work found utility in 3D printing instead of display technology. I had read about an early version of Kota Kumagai and Yoshio Hayasaki's "Colored voxels of laser-excited aerial volumetric display" and the term being used then was "Laser Plasma Emission (LPE)"
So I'm looking for a real holographic TV to be displayed and talked about because wikipedia says they were already invented. and then at 0:37 I have to here them say that holograms exist today (in 2014) and I'm instantly frustrated because I know they have existed for decades. But I'm trying to find out about state of the art technology, not technology from over 50 years ago.
Interesting to see the options... Any thoughts on what SeeReal is trying to do? I've been hearing about their research for years, but it doesn't seem to ever get anywhere... XD www.seereal.com/en/holography/index.php - (They claim a combination of multiple LCD displays in a special configuration, combined with eye-tracking and realtime calculation of a small subsection of a full hologram allows them to create an image on the retina close to what the eye would actually see... The limited angle made possible by eye tracking makes it plausible to do with displays that have pixel densities similar to current displays)) Or at least, that's what they claim...
Thanks, there are so many different holographic options that I didn't cover in this video. I just hope it offers a few perspectives. SeeReal's claims do sound cool. I remember seeing their site a few years back while looking into auto-stereoscopic 3DTVs. I have never tried their display, but would love too. The closest thing I have tried was Samsung's Glasses Free 3DTV which uses a lenticular overlay and allows for 6 viewing zones. So no eye tracking you just have to sit in the right spot. All in all these TVs are just giving us an illusion of holographics using optics and pixels. I still anticipate the day when true voxels make up our standard display technologies. Thanks for watching.
Chauncey Frend Yes... I haven't seen too many 3d displays... A few 3d films, messing around with a 3ds in a shop for a bit... And the 3d effect from a rift headset... In some ways real volumetric displays sound a bit impractical though... Especially if it's dangerous (or impossible) for a person to be inside the volume of the display... At least, they sound impractical for home use. large HDTV's already occupy quite a lot of space, and they're flat... Something occupying any appreciable volume would get pretty difficult to find room for.
KuraIthys All good points. History has shown that impractical technology can evolve through research. For example here is a picture of the first commercially available back lit LCD screen. We are lucky enough to know that this device was not the end of the story for LCD technology. www.minotaurz.com/compmuse/museum/pix/Sharp_pc7000.jpg
Chauncey Frend That is quite something to see. You are right of course. Early forms of new technologies often don't seem that great, even if what they eventually lead to turns out to be something really useful (or at least impressive).
OH MY !!!!!!!! A volumetric display ISN'T A HOLOGRAM !!! Meh... A hologram can be defined as a "bas relief" created by the interference patterns you get when you shine a laser light interfering with itself on an object...It's either reflection based or refraction based. It's a way to record waves of light (both phase and amplitude) on a FLAT medium!!! It has GROOVES on its surface and THOSE are THE HOLOGRAM (and they even define the hologram's resolution) !!! You're talking about everything BUT HOLOGRAMS !!! DAMN !! You're talking about VOLUMETRIC DISPLAYS, NOT FREAKING HOLOGRAMS !!! And the worst here is that there are people with DEGREES spreading such ignorant misinformation all over the place and it's just ridiculous... But this term is now the most common way people use to describe volumetric displays and even the most stupidest image reflections (like those idiotic pyramids) and I bet that *Dennis Gabor* has already turned in his grave...
