Playing Around with the Lytro Light Field Camera

A professor from my university bought a Lytro light field camera. We played around with it for a while. Although the Lytro’s form factor is different, you take pictures with it just like you would with your average digital camera. Simply push down the release button and you take a picture. The camera stores the pictures on its internal memory and you have to hook up the Lytro to your computer to download the pictures using the Lytro software. As the camera uses a proprietary format to store the pictures, you have to use the Lytro software to watch them. Continue reading “Playing Around with the Lytro Light Field Camera”

Hoverreact – An In-the-Air Gesture-Framework based on TUIO AS3 and SPIRITED


Dominik Huppmann accomplished his Master’s Thesis at the Hochschule RheinMain about the possibilities of a combined touch and in-the-air gestural interaction space. I supervised his thesis and am really proud of what Dominik achieved.

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The TwinTable – A Multi-Touch Tabletop System for Tangible Interaction

The TwinTable is a multi-touch tabletop system that Simon Lehmann and I have built at the RheinMain University. After my previous table, the Virttable, we wanted to go for something bigger and with Full HD. Furthermore, our goal was a table that could be used in a living environment. Therefore, we have chosen a height of 50 cm, which is roughly the same height as a coffee table. This allows us to integrate the TwinTable into our laboratory’s lounge suite.

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A Rear-Projection Mirror Fixture System for Multi-Touch Tabletops

Our multi-touch tabletop system TwinTable employs a rear-projected display with a diameter of approx. 46″. For the projection, we use an Acer H7350D DLP projector with FullHD resolution. In order to project the image correctly, we had to design a rear-projection mirror fixture system employing three mirrors.

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Combining the Microsoft Kinect with a Multi-Touch Tabletop System

In the context of our research work at the RheinMain University of Applied Sciences (see also slashslash.de), we combined two depth sensing cameras with a multi-touch tabletop system. Continue reading “Combining the Microsoft Kinect with a Multi-Touch Tabletop System”

Subversion Refactoring – Moving – Deleting Best Practices in eclipse’s subversive or subclipse Plugin

DISCLAIMER: If you use svn from the command line, this post is possibly irrelevant for you.

Possibly, you have found that post in a search engine, because you have had problems when doing refactoring in eclipse in a project checked out via svn. Continue reading “Subversion Refactoring – Moving – Deleting Best Practices in eclipse’s subversive or subclipse Plugin”

.htaccess Forward to New Domain with URL Parameters

If you move your web page to a new domain, you may want to forward users (and search engines in particular) that still access your page via the old domain to the new domain. However, if you use an underlying CMS or blog system you will want to keep the parameters after the domain name. E.g., if someone called http://olddomain.com/lang/en-us/living-with-complexity you would want to forward it to http://newddomain.com/lang/en-us/living-with-complexity. For this purpose, I found the following .htaccess snippet handy:
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