http://archive.pkmital.com openframeworks - http://archive.pkmital.com

Archived entries for openframeworks

6DOF Head Tracking

November 18, 2010
In computer vision, technology, visual cognition
No comments yet

The following demo works with SeeingMachines FaceAPI in openFrameworks controlling a Mario avatar. It also has some really poor gesture recognition (and learning but it’s not shown here), though a threshold on the rotation DOF would have produced better results for the simple task of looking up/down left/right gestures.

6DOF Head Tracking from pkmital on Vimeo.

interfacing seeingmachines faceapi with openFrameworks to control a 3D mario avatar

This is just with the non-commercial license. The full commercial license (~$3000?) gives you access to lip/mouth tracking and eye-brows, as well as much more flexibility in how to use their api with different/multiple cameras and accessing image data.

Of course, there are other initiatives at producing similar results. Mutual information based template trackers, for instance, seem to be state-of-art. Take a look at recent work by Panin and Knoll using OpenTL:

I imagine a lot of people would like this technology.… Continue reading...

“Memory” Video @ AVAF 2010

July 25, 2010
In audio-visual, computer vision, memory, technology
No comments yet

Please rate, share, and comment!

Memory @ AVAF 2010 from pkmital on Vimeo.

‘Memory’ is an augmented installation of a neural network by Parag K Mital & Agelos Papadakis.
hand blown glass, galvanized metal chain, projection, cameras; 1.5m x 2.5m x 3m

Ghostly images of faces appear as recorded movie clips within neural-shaped hand-blown glass pieces. As one begins to look at the neurons, they notice the faces as their own, trapped as disparate memories of a neural network.

Filmed and installed for the Athens Video Art Festival in May 2010 in Technopolis, Athens, Greece. The venue is a disused gas factory converted art space.

Also seen at Kinetica Art Fair, Ambika P3, London, UK, 2010; Passing Through Exhibition, James Taylor Gallery, London, UK, 2009; Interact, Lauriston Castle, Edinburgh, UK, 2009.

openFrameworks.info

June 20, 2009
In memory
No comments yet

Roxlu at Apollo Media has setup a nice new website that combines resources and recent projects made with openFrameworks. I’m not sure if this website will be set “against” the openframeworks.cc website or if they will focus on different things. Hopefully it don’t divide the community but foster its growth. In any case, they’ve put a nice blurb about Memory on their website 🙂 In time I imagine the website will expand with more resources for oFw developers and those wanting to learn oFw. Speaking of which, some folk here in Edinburgh are organizing a creative coding workshop in late August tba. Stay tuned!… Continue reading...

Memory

June 10, 2009
In memory
No comments yet

I’ve recently finished up a project in collaboration with a Glass Artist, Agelos Papadakis. We built a structure of 25 glass neurons the size of a face and chainded them together in a 3x3x5 meter sculpture. We had 2 cameras hidden in the piece tracking peoples faces and a projector then creating visualizations of the recorded faces resembling something like a cloud of neurons firing in different patterns. We presented it first in Edinburgh at Lauriston Castle’s Glasshouse, and then at the Passing Through exhibit in the James Taylor Gallery in Hackney: http://jamestaylorgallery.co.uk/exhibitions/2009/03/passing-through.html

It’s a bit tricky trying to film the piece since it uses projection onto glass. Sadly I’m left with only a few images that try to portray what went on.

Here’s the code, http://ccrma.stanford.edu/~pkmital/share/Memory.zip It makes use of the openframeworks library so you will need to be familiar with how to setup an XCode project with the openframeworks library if you plan on using it.

The original idea was to use glass balls so that’s why all the code says glassBalls instead of say glassNeurons. If you manage to get it running, press ‘d’ to see the live video input. As it collects faces, it fills up … Continue reading...