???????HOW TO MAKE A HOLOGRAM???????????????? 
Posted: 03 February 2010 08:07 AM   [ Ignore ]
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Hi,

I would really like to create a 3D hologram or something to where the image is floating in the air, and make it touch interactive with the NUI technology.

Thanks
Justin

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Posted: 03 February 2010 09:33 AM   [ Ignore ]   [ # 1 ]
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Ok,

This is possible!  Well not the true 3D aspect like R2 in star wars or the map console in Avatar but this:

http://www.videovat.com/videos/2420/helio-air-display.aspx

It is a super wide angle projection onto a screen of condensed air!  Been arround for a while, theres also a multitouch one!

http://www.youtube.com/watch?v=XOSx7v87JCA

And also check out wearable multitouch!

http://www.pranavmistry.com/projects/sixthsense/

It looks great but has limitations also it would guzzle power so is not very effecient!

I reckon you could build one yourself with a small air conditioning unit, Use LLP for the IR and PS3 camera for tracking then use a small 1000 lumen PJ for the image
The main drawback with this type of display is the fact you get blinded by the projector standing front on, and the projector will inevatably shine through the air screen and be seen on the wall behind etc.

Cool though! smile

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Posted: 21 February 2010 06:47 PM   [ Ignore ]   [ # 2 ]
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Check out this site…

http://www.zebraimaging.com/

I work with Zebra plastic sheet holograms everyday, and I have a colleague that has visited a DARPA demo put on by Zebra where they showed a HOLOGRAPHIC LCD display prototype. No glasses required!!  Once the holographic display is available as an LCD, you can imagine the possibilities…

I would be interested to see how this works out… I think that there will be some interesting challenges....  The depth of image from the surface to a perceived 6 to 8 inches off the surface pose some challenges to traditional MT technologies… Moreover, when two people are looking at the same hologram from different angles, and you ask them to touch a point, they will put their fingers in different places.... Challenges, yes… insurmountable???  TBD....

Good luck, post updates as you have them!

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Posted: 22 February 2010 06:43 AM   [ Ignore ]   [ # 3 ]
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Hi DarrenD wow imagine how awsome this would be!  gulp Can what to have a MT overlay on one of these puppies!

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Posted: 18 April 2010 03:48 AM   [ Ignore ]   [ # 4 ]
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I did a search for something like that, needed a hologram for a project.
i have found out that the word “hologram” is a erroneous name for what i was looking for: that being a stereoscopic 3d image, mid-air floating projection.

apparently that is rather impossible without the use of some special eye-wear, (different kinds for different techniques). this ruled the stereoscopy out of my possibilities.

nonetheless kept searching, and found about this british company.. MUSION http://www.musion.co.uk/ they have developed and updated a very antique visual illusion called “Pepper’s Ghost” (this is the magic trick responsible for the phrase “it’s all done with mirrors").
basically it is a 45° angled glass or film, that that reflects images projected to a surface that the audience cant see.. making a see-thru projection that seems to be floating on mid-air..
http://en.wikipedia.org/wiki/Pepper’s_ghost/

so far we have solved the mid-air floating projection.
we can project a video or animation into that.

to get the volume 3D illusion it works best if the object projected is rotating over its vertical axis. maybe some post production effects some DOF some sporadic blur..
to improve it you could make the objects illumination in the video projection match that of the real illumination in the room where the illusion is being presented.

and there you go, a fairly decent, technically possible, economic, “hologram"… or at least that is how MUSION markets it.

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Posted: 18 April 2010 03:59 AM   [ Ignore ]   [ # 5 ]
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for the stereoscopy get a fast refreshing projector and some LCD shutter glasses.. i know i will… some day… just not yet..

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Posted: 02 August 2011 02:41 AM   [ Ignore ]   [ # 6 ]
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Sorry for getting this post up again but i found a nice project which could fit in dis thread.
Some guy uses a kinect camera to track the viewers head in 3d and displays the picture of an object in the right angle on a display.
This simulates a 3d object and it seems like a hologram is hovering over the display.
It only works for one person at a time.
I thought maybe someone would like to add this feature to his table.
would be a nice feature to have a little avatar standing in the corner of the table.

Here is the link to the hackaday article.
http://hackaday.com/2011/07/02/3d-display-using-a-kinect/

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Posted: 08 December 2011 12:08 AM   [ Ignore ]   [ # 7 ]
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check this new display which i made..

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