in november we had our second review of the iTACITUS project. therefore i finished an augmented reality applications for winchester castle’sgreat hall. it shows overlay information about three points of interest: arthur’s round table, the court and an outside scene with the sheriff of hampshire.
the main task was to present these scenes on the sony ux ultramobile pc. additionaly i showed the outside scene on the iphone with my snapshot augmented reality application.
just implemented the “The $1 Gesture Recognizer” in X3D. the original code is written very well in javascript (without dom / html specific code). that’s why it’s easy to imlement in X3D.
it works amazin accurate! download instantplayer and open the file to test it. next i will put it into a proto for better integration.
“snapshot augmented reality” on iPhone let’s you take a photo and augmented it with virtual objects or geolocated information. therefore the application sends the image to InstantVision server via Wifi or UMTS. the overlayed image is sent back to the iPhone and displayed some seconds later.
this lightweight solution eliminates the major problems of augmented reality on mobile devices: hardware availability, computing power and battery life. and it is compatible with Apple’s iPhone SDK, where live video streaming is still forbidden. the client is a very slim application that takes a photo and sends it to an InstantVision server. this server extracts the geolocation of the image and runs a database-driven postertracking on it to calculate the iPhone’s camera pose. therefore a reference image and a prepared 3d scene of each point of interest (POI) is needed. a flickr image and a small X3D scene is enough.
due to the distributed architecture the slim client can be ported to android, symbian, etc.
at SIGGRAPH johannes and dirk gave their “Don’t be a WIMP” class. we showed some stereo rendering, wiimote 6DOF and augmented reality demos afterwards. inbetween we had to run to fetch the google t-shirts..
together with “Rome Reborn” we exhibited the iTACITUS technology. via instantvision’s markerless tracking we showed 3d models of roman monuments on top of a floor map and posters of Rome.
next years WEB3D conference will be at IGD in darmstadt!