The Media Interaction Lab.

Office of Tomorrow



Collaborative Augmented Reality setups are becoming increasingly popular. Currently, we are developing a collaborative environment that is mainly designed for brainstorming and discussion meetings. Using a digital pen, participants can annotate not only virtual paper, but also real printouts. By integrating both forms of physical and digital paper, we combine virtual and real 2d drawings, 3d models, and digital data which are overlaid into a single information space. In cooperation with voestalpine Informationstechnologie GmbH and Team7, the Upper Austrian University of Applied Sciences is the main contributor to this project. The project started in September 2005 and will finish in September 2008

Table of Contents:
Interactive Table & Digital Whiteboard
Coeno One
Shared Design Space
First Demo Scenario

Interactive Table & Digital Whiteboard

oot_info_graphics_pattern.pngCurrently, we developed several sub-projects, including Coeno One, Shared Design Space (Interactive Table), Intoi (Digital Whiteboard), and a first demo scenario for our customer, voestalpine. Both the Interactive Table and the Digital Whiteboard are based on the same tracking technology. The setup is based on a pattern, which is tracked by the digital pens. Anoto-based pens are ballpoint-pens with an embedded camera that tracks the movements simultaneously. The pen has to be used on a specially printed paper with a pattern of tiny dots. Each paper sheet is unique and can be ordered from Anoto. In our setup, we use this technology in two ways. Firstly, to track the whole table surface and secondly to combine real paper with digital augmented content. All pens – with their inbuilt infrared camera track at least 36 dots of the paper to retrieve both the ID of the paper and the position relative to the upper left corner of the paper. The position can then be sent in real-time to the PC via Bluetooth. Currently, three commercial pens with Bluetooth are available from Nokia (SU-1B), Logitech (io-2), and Maxell (PenIT).

36 tiny dots are arranged on a square area of 1.5 x 1.5 mm2. The Anoto pattern, placed under the Plexiglas, allows accurate tracking of digital data and the projected content does not interfere with the tracking of the digital pen.

Coeno One

Coeno OneCoeno one is an around-the-table application based on the Augmented Surface ideas presented by Jun Rekimoto (Sony CSL). Our goal was to design an interactive table for presenting a storyboard using tabletop technology in combination with augmented content. It is based on a flexible framework using OpenGL. Coeno One shows how people can work together in a new way while still working with their traditional interfaces. Participants can use their laptops and Tablet PCs into the environment, connect their devices to the system, and start exchanging their ideas by moving digital data (e.g. images, videos, digital scribbles, short animation shots etc.) to the table. They can move their private ideas to the public surface. Coeno One offers a smooth integration of portable computers into a meeting room, where the table and walls are acting as an extended public display. Equipped with a wireless multimedia mouse pointer, one person assumes the role of a coordinator and organizes the “unsorted” data by moving them from the workspace-table to the projected presentation-wall. The main motivation for this project was to find out in which sense people will benefit by using interactive tables.

www-link.png Project Website

Shared Design Space (Interactive Table)

cimg9191.JPGThe Shared Design Space is a novel interface for enhancing face-to-face collaboration using multiple displays and input surfaces. The system supports natural gestures and paper-pen input and overcomes the limitations of using traditional technology in co-located meetings and brainstorming activities. The installation itself consists of two modules:

1. An Interactive Table, which combines the benefits of a traditional table with all the functionalities of a touch sensitive digital table and display.

2. A Digital Whiteboard, consisting of an optically tracked rear-projection screen that displays digital content and captures user gesture input. Combined with the Interactive Table, data can be seamlessly transformed from all presentation sources to the presentation wall.

Both devices can be used simultaneously and combine input and output on one surface.

www-link.png Project Website on

Intoi (Digital Whiteboard)

dsc_0607.JPGINTOI is a rear-projection setup which combines accurate pen tracking with hand gesture recognition. The hardware consists of an Anoto pattern printed on a special rear-projection foil and an infrared tracking system. INTOI is a low-cost system that is scalable and provides highly accurate input (to less than 1mm). Finally, our setup supports a novel multi-user interaction that combines simultaneous interaction of both hand and pen gesture input.

In contrast to classical WIMP-interfaces, we used a lot of pen- and gesture-based metaphors such as the Curve Dial technique. Using a Curve Dial, users can easily browse through an image gallery, by rotating the pen in the middle of the pie menu. This method tracks the curvature of the path created by the pen and changes the values accordingly. The speed of how fast the user can browse through the content is controlled by the circle size made by the user: the larger the radius the slower the increase in the parameter and thus the slower the speed of the browsing of content. In the same way, users can change other parameters, cf. stroke width.

www-link.png Project Website

First Demo Scenario

OOT First ScenarioThe first scenario prototype implementation is influenced by early paper prototypes that were used to identify potential workflows carried out on table and wall surfaces. The results from the paper based scenarios together with collected requirements from our company partner defined the frame for our first prototype implementation. The current setup includes a digital table, an interactive flipchart and additional information displays. The table is designed to be used by four participants simultaneously who can interact with digital Anoto pens. Data can be manipulated directly on the table, shared between users and transferred to the digital flipchart. For this purpose, private spaces are projected on the table that are owned by a specific user. Exchanging data between users can be accomplished via the public workspace of the table that also works as a data storage place. The flipchart is a rear-projected surface that enables interaction through an ultrasonic MIMIO device. Additional displays can be used to show side information that can be accessed through a screenshot server that runs as a background application. Participants can take a snapshot from any kind of application and further annotate or share this data on the table or the flipchart.


Shared Design Space Video
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SDS Demo at Laval Virtual 2007

Shared Design Space Concept Video

Intoi Video (Digital Whiteboard)

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