I just finished my great first day at ISMAR11 in Basel, Switzerland. A lot of great people, impressions, demos, talks and information. It will take a little bit longer to sort out all cool pictures and to distil the best stories for you.
For now I have to say, I loved a lot of demos, would have liked to see some poster sessions live rather than just printed and the organization went pretty smoothly! After yesterday’s workshop sessions, today it was the first conference day with talks and demos. Oliver Grau started the keynote on the history of Immersion and digital art, sessions on planar tracking, mobile localization, reconstruction, games, AR browsers, architecture and business models were to follow. The tracking competition had some delay, but I’m sure we will have an interesting battle tomorrow from compeeting teams (such as IGD, metaio, VTT, TU Munich and Mark Fialas Team from Canada). The tasks are pretty challenging I can give away already!
I will go into detail after tomorrow, for now I want to tease you a bit with some first impressions through pictures. There are much more pictures I took this Thursday. Some will appear here, all will appear offically via ISMAR11′s website later. :-) Enjoy!
So, today one more paper pre-presented with a preview called “Transformative Reality: Augmented Reality for Visual Prostheses”. The research here was funded by the Australian Research Council Research in Bionic Vision Science and Technology Initiative and they describe it best themselves:
Visual prostheses such as retinal implants provide bionic vision that is limited in spatial and intensity resolution. Transformative Reality (TR) improves resolution-limited bionic vision by performing real time transformations of visual and non-visual sensor data into symbolic renderings. Our demo will immerse users in a visual world limited to 25×25 binary dots that simulates low resolution bionic vision; what does the world look like in 625 bits?
Projected AR and Interaction: OmniTouch
OmniTouch is a wearable depth-sensing and projection system that enables interactive multitouch applications on everyday surfaces. This bulky demo shows a great future vision: to surpass the tiny screens and interaction areas of today’s smartphones and to interact within the real space directly. Being a big fan of ProjectedAR/SpatialAR this is another great demonstrator that makes my heart leap. I mentioned this work from the CMU and Microsoft Research before, but the video is fresh and all will be included in the Symposium on User interface Software and Technology: Santa Barbara, California, October 16 – 19, 2011.
Total Immersion updates their AR solution
Total Immersion has released a new free to download version of their D’Fusion Studio software package.
To show off with their new features, T-Immersion has released their free fun game called SkinVaders: the first game to use AR to bring players into the game—literally and physically—transforming their faces into game terrain over which alien invaders, known as SkinVaders, battle for domination. Players must tap the other’s faces and kill popping eggs laid by aliens. Sounds like fun – gonna try this weekend. :-)
Every week we see cool new videos, that show a possible future, explaning how AR could change our lives and how it could work. These concepts are great to get a glimpse of the possibilities and scenarios, while they naturally leave out the technological way to achieve all that. Nevertheless, it’s always very interesting to look into other people’s visions on AR. So, to kick off, we have a new marketing concept on mobile AR and thus with another beautiful woman waving around a phone. This comes from hiddenltd:
Photo-realistic AR Hands on
But to get into details of such an actual AR implementation regarding devices, tracking or visual quality we have to take a look to another direction, away from the agencies. E.g. the Siggraph Asia 2011 will have some neat presentations on Augmented Reality, too. It will only be unveiled in December, but already today we get access to some papers and videos. One great approach comes from Kevin Karsch, Varsha Hedau, David Forsyth and Derek Hoiem from the University of Illinois: they have described a way to insert CGI elements dynamically and realistically into photographs. It’s called “Rendering Synthetic Objects into Legacy Photographs“. This approach is especially helpful, when (like for old historic photographs) there is no additional information present (3D geometry, HDRI captures of light, etc.). It is possible to achieve realistic AR insertions without having access to the scene!
While interactive annotations won’t work for “spontaneous AR”, it’s great to see with how little (user) effort great results can be generated. Obviously the most interesting part is the estimation of physical lighting for the scenes. They distinguish interior lighting (within the photograph) and exterior lighting (outside of the picture) named light shafts. Their paper explains the details on how to recreate light directions and estimate all needed parameters and also gives an interesting insight into user studies. People have already difficulties to tell, whether the picture has CGI elements or not. 34% of the time, their algorithm won over other approaches and the real (non-fake) pictures!
It will happen between the 26th and 29th of October, 2011. Come join for 4 days in beautiful Basel! If you can’t make it: still good news! Augmented.org is present all conference days and will be blogging and documenting the whole event. We are officially accredited partner and will dedicate us on bringing all AR news to the web and this page! Personally, I can’t wait!
Since 1998, ISMAR and its forerunner events, IWAR/ISAR and ISMR, have been the premier forums in this vital field. Now it’s the 10th anniversary of the ISMAR (under its today’s name)! So, feel free to drop me a line in advance to hook up with me for a chat!
two days of a great conference are over and now I’d love to give you guys an insight on what was going on at metaio’s insideAR conference 2011! Thanks metaio for the great show and the parties, it really has grown so quickly and all demos and the location has been so impressive. I guess the event gave quite a few headaches to the staff before (and later at the party to more). Let me wrap up the key facts for you, I won’t be able to go into all talks, though.
Keynote
The conference kicked off with an introduction of Thomas Alt (CEO) and Peter Meier (CTO) while being supported by a great moderating magician: to a non-tech guy AR still looks like magic and this as a red line was definitely a good fun connection. Thomas stressed their vision, that within the next three years AR will be a standard on everybody’s smartphone (and probably almost everybody will by then have a smart(er) phone). AR will grow for the consumer big time due to useful apps and solid use cases. There is more than one killer app.
His big announcement right at the start was the surprising news that they will now offer a free mobile SDK for all developers. Now there will be two SDKs: a pro edition, that includes their latest research results and tracking algorithms, and a free basic edition, that allows working with the same interface, but has some limitations (e.g. a watermark, no QR code reader, no face tracking). A great step for the developers out there!
Peter continued with some examples to explain their claim of “Making the digital a natural experience”: the whole interface concept and the way we interact with information needs to change and will be changed with AR and new approaches. The interaction needs to be easy, fun and more intuitive. AR can also influence the communication and social interaction of citizens on the long term. E.g. it even allows a direct dialogue of politicans and citizens, aiming at a more direct democracy (the used example was the Da-müssen-wir-ran-App from the greens party during the election in Berlin).
To allow faster creation of this content, Peter announced the metaio Creator. A new tool, that allows easy linking of markers and contents and speeds up the deployment of ideas. The shown alpha release already handled marker+feature tracking plus video and 3D content well (though the WiFi impeded the live demo).
He explained their latest tracking improvements like the GAFD algorithms (gravity aligned feature descriptor) to stabilize tracking on mobile/multi-sensor devices. Moreover we could see demos of a 3D outdoor tracking and a RGB and depth-camera based 3D-reconstruction approach, that made use of the Kinect to recreate the real world into virtual 3D (e.g. for occlusion handling and collisions). Impressive! The good news: the new technology clearly favors AR in multiple ways (from NFC to HTML5, LTE networks and stereo-camera smartphones (for 3D reconstruction)).
But the biggest claim was – introduced by an old school Wolfenstein3D shot – that a new technology state will be reached soon, comparable to the big steps computer graphics did during the early 90s, when the first person shooters hit the public (yielding in the big business of graphics hardware like nvidia and ATI). The same story will happen again – now to Augmented Reality. Especially hardware cooperations of metaio should foster this development and the vision of a natural digital interaction. For this, metaio closely works with different hardware developers, e.g. Vuzix and Sony (both showed their latest HMD prototypes and products) and esp. mobile platform developers (like ARM chipsets) to get the right speed, longer battery life for everyday AR and the best tracking and presentation.
Once these technologies mature enough Peter claims, we will have another technological discontinuity, that breaks away from the currently dominant design (like the touchscreen smartphone is the standard today) towards something completely new. A new era of human-machine and human-world interaction – possibly based on the smart combination of easier interaction methods and AR goggles. Can’t wait to see it happen! :-)
Exhibition
The demos were numerous and displaying a lot of different aspects of AR deployment. Be sure to check out the image gallery below for more to see. Mostly you could see use cases with the mobile SDK and junaio (enhancing posters, shopping situations, games, configurators, instruction manuals, etc.). Moreover they are well established inside the industrial realm (showing precise and fast tracking+overlay for prototyping and design reviews & planning). But to name only two explicitly, I’d pick:
The Augmented City, we’ve been talking about before, was shown the first time live at the conference. Their tracking on a Samsung Galaxy SII was impressively stable and the look of the CG is getting better and better. Judge by yourself above, in their offical video or in this live video, that has been put up before I could edit mine, so enjoy the one from Augmented Minds. Can’t wait for metaio to implement the whole concept of an augmented city in a 1:1 scale in the states!
Biggest fun was to see myself from the perspective of a toy car racing through the augmented real track outside the conference building! It’s weird to see yourself from below through your eyes through the camera of the car… ;-) Next time please with a combined AR:DRONE fight! :-)
By the way – we now have pictures up on our very own flickr account. So enjoy more of the conference online and conveniently embedded below:
Talks
The well fitting talks gave great new impulses on different sides of AR usage. John C. Havens from Transitional Media started on how AR will transform ads and your identity. He made good points regarding the unclear question of who owns augmented space: if an artists highjacks the Mona Lisa by overlaying it with his own art: can he be sued? Does the Louvre have the only right on the 3D volume of air around its building? Who owns the ad space? Especially: should the app developers get revenues from linked companies inside their AR browsers? If I as a user are being tracked: how much control do I have over my own person? Do I own myself? Inside this quite scary marketing vision he recommended to become your own brand and to turn the tables this way.
Josh Shabtai of Vertigore Games speaks about games as being the #1 driver of technology (before AR and with AR) and elaborates on the overall gamification process of our lives (e.g. like chore wars). He demands that AR games should trigger more feelings to the user and start our imagination, rather than trying to squeeze a bit of more polygons out of the tiny graphics chips. Altered Reality Games are the best example: the user converts much more of the real world around him into a gaming experience – than the graphics only ever could – by imagining much more than is presented. If we trick the brain through a great experience, audio and some visual hints, we can get the goose bumps much faster than by a single image. Lastly he envisions how future social AR games will demand for even specific real world physical spaces for the people to meet and play. (Like playing AR paintball.) Great talk!
Of course I can’t continue on all talks in this detail. Though there were great talks on AR example use cases (historical records, industry AR), story telling concepts and upcoming hardware for better AR-enabled experiences (scary: “You dont’ need to talk to nobody anymore, your phone is your best friend”) and more panel discussions, as you might have read here at metaio’s page anyway. But One more thing to mention: I loved the talk of Shelley Mannion (British Museum) on AR in culture and arts and especially her interest in augmented sound, I share by 100%. I must have missed the mentioned Inception Augmented Sound app, so check it out if you haven’t either. It blows you away and into the 13th dream level. :-)
metaio & the Future
The second day metaio’s researchers gave more insight on the latest development. The big bang was the progress in markerless RGB tracking on mobile devices and their approach of rgb+depth camera based tracking and meshing. To the latter we will see a presentation at this year’s ISMAR in Basel! Can’t wait. The live demo with a stereoscopic camera cell phone allowed direct and live-learning marker-free tracking, that will also be able to solve the scale problem (due to the stereo base). I hope I’m allowed to go into more details about all this soon.
Other news and plans include an online calibration for web-based apps, gravity-awareness to be used inside the SDK (allow more convincing experiences due to correct physics for virtual objects), continued work on tracking improvements (of course) and scalable mobile instant 3D tracking (indoor/outdoors) plus a mobile client-based fast recognition on large databases. This all will help to better localize the user on a much better level of accuracy and to create better applications such as outdoor AR-navigation or more detailed context-aware AR.
Also, cool to see, that they are always willing to integrate even more sensors for a better augmentation, if the consumer products/hardware offers it (e.g. thermal sensors, etc.).
Overall…
… metaio did it again. Great progress in tracking and 3D reconstruction and a complete porting to the mobile world is a great deal. Their clear vision that not only focuses on the core development of tracking but also thinks about the consumer connection and the hardware was impressive. They sure have a plan! Lets hope that their plan works out and that external developers will give us the needed killer app plus content and that metaio is not betting on the wrong horse, delivering “only” the awesome base for AR.
See you next year and hopefully also at the ISMAR11 in Basel!
Arturo Castro shows a great video to the internet crowd, that amazes already thousands of people: he swaps his face that is held into his webcam in real-time for prominent faces. This face recognition algorithms plus replacement are of course well understood especially in the movie productions, but once again we can see how far free toolkits and standard hardware bring us today regarding real-time applications!
We can imagine lots of applications like avatar control (combined with altered-voice chat) or augmented video conferences to disguise yourself. This face substitution is not yet perfect, especially looking at the edges of the mapped skin without elaborate blending, but you get the idea and it should be sufficient for a big weekend “WOW” when seeing Michael Jackson chatting to you. ;-) There is more on real-time facial animation and to show another short video, I quote this one here, since it easily shows the underlying mesh and mapping process.
The demo uses openFrameworks, Jason Saragih’s c++ library for face tracking combined with Kyle McDonalds ofxFaceTracker, color interpolation algorithms from Kevin Atkinson to give full credits here. :-) Enjoy!
… and if you were a little bit scared by this and on its possible future usage and scam potential, you can relax by having a cool drink with some augmented information and dancing girls. I guess the apps gives a bit of information about the product… or… not. :-)
Today a short update with my favorite videos of this week. The two clips show typical student situations: forgetting the lecture hall and playing FPS games. Well, basically there is not much more to being a student. ;-) Without further comments, I’d like to present these two funny videos showing AR goggles for the campus usage with bullying and for free time activities for sporty nerds! The first comes from AndyHyperIsland, the second via Freddiew. Enjoy!
A longer while ago I’ve been blogging on the company Azavea and their mobile AR prototype to support cultural heritage browsing and knowledge access. They teamed up with PhillyHistory, that lets you find historical photos and maps by date, neighborhood, address, and/or keyword in a collection of over 90,000 records.
Triggered by the Philadelphia Department of Records (DOR), Azavea started to research on the use of mobile augmented reality technology in displaying a large database of historic photographs. The app enables users to view historic images as overlays on the current landscape. After the research period Azavea published a white paper called “Implementing Mobile Augmented reality Technology for Viewing Historic Images”, that should answer the before asked questions like: Is augmented reality (AR) a useful method for showing the history of Philadelphia and helping users to see the connections between the past and the present? Is AR technology advanced enough to make this type of application possible? Are smartphone networks fast enough? Is the phone able to pinpoint a user’s location accurately enough to load images of that location even in a crowded urban setting?
That’s why I spoke to Deborah Boyer from Azavea to learn a little bit more first hand about the results. Deb allowed me to publish her answers for you all! Thanks again! It’s only some answers here, the white paper has a lot more. So, now: enjoy!
augmented.org: Was the GPS Positioning accurate enough for your purpose in the end?
Deborah: The GPS positioning was accurate enough although it could certainly be improved. Our biggest issue was with the jitteriness of the images. They often bounced or wobbled and simply didn’t stay in one place as well as we would have liked. Use of the gyroscope in newer smartphones should hopefully improve this in future apps. We talk more about the positioning issues on p. 22 of the white paper.
Are processing times fast enough for a stable and good experience?
When we chose to display nearly 90,000 points in the app, load time started to become an issue. We sped up the app by choosing to display only the four closest points as images. Other nearby points load as icons (which can be cached) and the user can then click to load the image as an overlay. We also only return a select number of POIs for any location. More information about processing times is available on pages 15-17 of the white paper.
Regarding input/output devices what are your learnings? what is missing today?
The relatively small screen size of a smartphone required us to pay careful attention to what we could display without overwhelming or confusing the user. We created an opening launch screen to help guide users through the app and used the Layar customization options as much as possible. The images were often very small in the AR view so we also built an option for users to load and view the image on another screen where it could be a larger size. This screen also contained additional descriptive information. While we tried to use the screen space as well as possible, it is still a fairly small space in which to show a lot of information. Tablets may be useful for their larger screen although the weight and size could make it difficult to easily use them with an AR app for long periods of time.
How do you prioritize POIs if there are too many? How do you guide the user?
We organized the POIs into three categories: twenty images with additional accompanying text, 500 images which were aligned in 3D space, and the remaining images (roughly 87,000) which made up the majority of the collection. The app prioritizes the images with additional text or the 3D aligned images over the other points. The prioritization also includes distance calculations to prevent POIs from appearing on top of each other. To guide the user, we created three different icons to indicate the different types of images. We also wrote a help page to walk people through the process of using the app. More details about prioritization are available on pages 16, 17, and 21 of the white paper.
Did you try prototypes with tablet devices?
We did not try the prototype with tablet devices. At the time of development, tablets with cameras were not readily available so we stuck to smartphones.
How was the user feedback, what are your results on usability/effectivity? E.g. does placing images in 3D space work better screen-aligned or “3D-space-aligned”?
In general, users were excited about the project and the research. When we released the prototype, we realized that users may have some difficulty viewing the aligned images due to the jitter that is often found in AR applications. We received some feedback that the images bounced around too much and made viewing difficult. Other users reported no problems. While the 3D alignment helped in some cases, other users found it confusing.
In the end: was the program useful and accepted? Will you continue in cultural heritage projects with AR?
The project was useful for investigating AR technology and its possible use in cultural institutions. We received a positive response to the white paper and hope that it will serve as a useful resource for other organizations investigating the use of augmented reality. We are interested in pursuing other AR projects and potentially expanding the PhillyHistory project but have no immediate plans.
Talking about a possible open source AR platform: what is most important for them and will you be forcing this, too?
With the variety of collections and media types available in cultural institutions, an open source AR platform could be useful to providing additional features and flexibility to organizations hoping to experiment with AR. The publication of open source AR standards and the creation of a community around open source AR would hopefully allow for more innovations and sharing of resources. We’re interested in the topic of open source AR but are not currently working on any open source AR projects.
The App was only a prototype and only available for a few month. But you can still try it using layar with a dedicated channel or read the full white paper for more research results! Thanks again, Azavea and of course, Deb for taking the time!
Last weeks time I used extensively to go through this year’s Siggraph papers and posters. Again, great news and ideas from our fellow researchers. Today I’d like to share two of them that are related to AR and happen to have a public available videos online for all of us to enjoy.
SonalShooter
Ken Nakagaki and Yasuaki Kakehi present their sonic shooter at the conference. The title is “SonalShooter: A Spatial Augmented Reality System Using Handheld Directional Speaker with Camera”. It shows once more that AR does not only refer to visual overlays or feedback, but can also mean augmented audio. Their gun-shaped device lets users point onto objects of interest (aided with laser pointer, recognized through markers) and the gun uses directional speakers to implant the audio output into the object itself, i.e. you recognize the sound coming from that source and not from the gun!
Of course it’s not really possible to understand the concept listening to the video, but it explains the approach and technology pretty good:
I especially like the interaction idea of switching channels through rotation of the device (i.e. for selecting other languages).
Kinect Fusion
The inventors of the Kinect themselves (Microsoft research) have presented a great paper on 3D real-time scanning of rooms, objects and living things. You would say: yeah, well, that’s what the Kinect does, right? But this is far more advanced. Using the depth information through the IR pattern, Microsoft can create high-quality 3D models. “The system allows the user to scan a whole room and its contents within seconds. As the space is explored, new views of the scene and objects are revealed and these are fused into a single 3D model. The system continually tracks the 6DOF pose of the camera and rapidly builds a volumetric representation of arbitrary scenes.”
So, to make it easy, have a look below:
I’d say it shows us the future of devices to come, imagine having this in your AR goggles embedded: helping the cloud-based representation of the 3D world and allowing far better interaction of virtual and real objects. The video shows this on two Augmented Reality examples: first, the splash demo, that uses real-time physics to spill the virtual color over the real objects and secondly the possibility to paint onto real surfaces with your bare finger! Awesome!
ISMAR 2011
Besides the Siggraph, we sure are all waiting for at least two more conferences this year (insideAR from metaio in September) and the biggest show: the ISMAR 2011, this year to be held in Basel, Switzerland. By the way: I’ll be on location all days, blogging live from this year’s ISMAR. I hope we can meet up! Show me your inventions! :-)
To have a sneak peek on this year’s papers, I selected a paper on 3D reconstruction as well (as seen above from Microsoft) – but this time running on a mobile device! It’s called “Rapid Scene Reconstruction on Mobile Phones from Panoramic Images”:
By using a very fast and flexible algorithm a set of panoramic images is captured to form the basis of wide field-of-view images required for reliable and robust reconstruction. A cheap on-line space carving approach based on Delaunay triangulation is employed to obtain dense, polygonal, textured representations. The use of an intuitive method to capture these images, as well as the efficiency of the reconstruction approach allows for an application on recent mobile phone hardware, giving visually pleasing results almost instantly.
The system shows us where we are going and what we can expect during the next years! Calculation of the 3D geometry takes 18 seconds on the mobile device itself. We sure will see this number falling.
In other news…
Rouli found this Denno Coil-like future vision, showing us again how cool AR could be with the perfect blend of realities. Damn you science, that you develop still so slow for one measly human lifetime! Here we go:
Staying with mobile AR browsers, we have a big update coming from metaio, too. Their browser junaio has undergone a major update (now 3.0), giving us their tagged “scan the world” functionality. It allows us to scan anything from pictures to bar codes or QR codes and get information about it from Junaio’s channels. But the information has to come from a junaio channel/metaio partner! It makes sense, but does not give us the google goggles approach of being able to scan everything and do an image search on it. (I couldn’t try it out yet, will do this weekend. So bare with me, hope I didn’t get this wrong.) Anyway, here we go with their announcement (lots of videos today, yeah!):
Tanagram has developed a concept for improved HUD systems for fire fighters. It’s the best concept video for a real life professional use case in a long time, I wanted to share with you today:
The video is titled “The future of firefighting – A HMD-AR UI concept for first responders” and uses HMD setups for firefighters to display additional information and allow for natural and quick interaction to have needed information accessible as fast as possible. It sure reminds us of other concepts and movies, but brings it together to a great scenario, that looks pretty damn feasible and useful:
In detail they describe the concept being developed for the Department of Homeland Security to explore “methods to help our firefighters leverage information displays to help them stay alive and help others”. “Tanagram, under a grant provided by the Department of Homeland Security developed a phase zero Self-contained breathing apparatus (SCBA) enhancement that leverages HMD / AR technology to display critical factors all-the-while not obscuring the firefighter’s field of view.”
They underline that it is only a first concept and more work will go into it to refine the interface, making it faster and safer to use for the firefighter. But already today you can imagine how AR can help out in scenarios, where additional information can make the difference among life and death and a split second is all it takes. The hardware and tracking development may not there yet, but it once more shows the potential of AR.
I guess it’s gonna be pretty tricky and take lots of research to have all the material fireproof for this extreme environment and to have a 100% reliability of the system (or to have an easy way out, i.e. not that due to a crash a blanked screen blocks the vision). I wonder, how much data access the firefighter really needs during a mission: it feels like a lot of information already, giving him the possibility to browse through the directory of partner views or mission maps. The fastest way – for such a extreme environment at least – seems to be having a mission commander, that coordinates and gives audio commands. Can’t wait to see more prototypes of this and even get some more feedback from user tests one day, exploring this balance and especially the way of presenting the data in a lean way to help the most.
Today I want to kick off with the latest video that just went online from our friends at metaio: “The Augmented City”.
Their vision aims at a fully CG/AR enriched city with perfect alignment of virtual elements to the real world. Well, of course, we all hope for that technology, but metaio is doing a pretty good job in getting the technology base on the road. They intentionally focus on their strong part of software (tracking and framework) and team up with strong content and hardware partners. So, we get closer to the demo scenario, that sets up a complete experience in a 1:1 scaled AR City like its dreamt up in so many movies or animations (like Denno Coil).
For now, we get a miniature version, showing the current technology already in action: 3D feature tracking and an improved mobile renderer. Can’t wait to see it live at their insideAR conference in 6 weeks, where they focus on telling us how the vision now gets on the road(map)!
What’s the fastest smartphone I can get until 26th? :-)
Layar Vision is an extension of the Layar platform, taking augmented reality to the next level. Layar Vision allows the creation of layers and applications that recognize real world objects and display digital experiences on top of them.
Layar Vision uses detection, tracking and computer vision techniques to augment objects in the physical world. It can tell which objects in the real world are augmented because the visual fingerprints of the objects are preloaded into the application based on the user’s layer selection.
Android Beta version is coming in a couple of weeks. iPhone and Android final versions should be there by the end of Q3 2011.
Mark Skwarek has started a new project, called “The Augmented Reality Korean Unification Project“, tagged Uniting Korea with Augmented Reality to support the peace process in Korea, showing the border areas how they should be and were. No weapons, no demilitarized zone, no checkpoints, but trees and former landscape. To quote Mark: “This project tries to help the peace process by letting the Korean people see a unified Korea. This vision hopes to strengthen the people of Korea’s resolve for a peaceful unification.”
Besides, in another city, that has been luckily reunited quite a while ago, we have the elections coming up, bringing us augmented election posters in the streets of Berlin: http://youtu.be/lNvEGr0LuOk
Wondering, how museums could save the money for traveling huge pieces of art around the world? Wondering how the museum would then look like if someone turned off the grid? Take a look at the Tallin Gate[way] projects! :-)
