Alejandro Valenzuela's blog


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01 de julio, 16:38(+01:00) - At last, someone worthy of my vote


http://www.heroeslocales.com/bunsen/2009/07/01/una-modesta-proposicion/

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21 de mayo, 18:57(+01:00) - Interactive Floor video by Amir Chamsaz
My teammate Amir made this great video which explains better what the project is about :)

Interactive Floor from Amir Chamsaz on Vimeo.



(PlanetaLinux folks, please visit my webpage directly if you can't see the video)

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21 de mayo, 04:46(+01:00) - Interactive floor - exhibition
As I wrote on a previous post, 2 weeks ago me and my fellow Interaction Design Project students from Chalmers University of Technology had an exhibition where we showed the projects we built during this semester's course.

This exhibition was open to the public and was also part of Göteborgs Vetenskapfestivalen ("Göteborg's Science Festival"). I estimate around 30-40 visitors per day on average came to see our projects, which ranged from videogames to emotional pillows and even a robot!

I was in the Interactive Floor team. Our project consisted of a projector pointing towards the floor (we put it on the upper floor and used a mirror) and a webcam (also located above) connected to a computer. People can then play with the images being projected under their feet.

Our goal was to explore how people can interact with such a device; for that effect we developed 4 different small games that work with our tracking software.

Here are a few pics and videos of people playing on the software. Mostly children, since they came rather unexpectedly, had the most fun...... and gave the tracking system _QUITE_ "a run for its money"



Children playing Personzilla in the Interactive Floor from Alejandro Valenzuela on Vimeo.



Interactive Floor - children at the exhibition from Keyvan on Vimeo.



If you're interested, you can download the source code for the whole project (and play squishing tanks with your head using a webcam, since I doubt you'll be able to play pong with your eyelashes) by pointing your SVN client to http://idp.mexinetica.com/code . This works for both GNU/Linux and Mac OSX.

I'll upload build and usage instructions and binaries ASAP.

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12 de mayo, 07:55(+01:00) - IEEE Spectrum: 25 microchips that shook the world
IEEE Spectrum has come with an excellent compilation of 25 microchips that somehow changed millions of peoples' lives, many times without them even noticing.


From Speak n' Spell to dolls, the NES, Futurama and our feared Analogical Circuits lab assignments, these chips make a very interesting read.

Here's the link:

http://www.spectrum.ieee.org/may09/8747 .

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02 de mayo, 14:38(+01:00) - Mexico Senate approving polemic laws while the influenza outbreak goes on
On the 30th of April, the senate approved a law which allows the Mexican Federal Police to tap into phone and cell lines (including geographical location of caller), as well as internet snooping, after being authorised by the Federal Public Ministry (not that they are not already tapping whomever they want, as some cases have occurred in the past..).

It also allows the use of undercover agents, which means it will be even harder to know who is who (not that there is much distinction nowadays).

Short of giving us "..a more reliable Federal Police..", I believe this will only lead to more human rights abuses. And the fact that it was approved at such a moment in time is highly suspicious..

Links in Spanish: La Jornada | El Universal.

Law-making, "madruguete"-style. Shame on them legislators.

(I'd heard the story from conspiracy theorists' e-mails but refrained from publishing it until I could cite official sources. Which happened today, as someone else in mx.planetalinux.org pointed them out)

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29 de abril, 12:16(+01:00) - Project: Interactive floor / Interaction Design Expo '09



As a requirement for the Interaction Design Project course, my team and I designed this project which we call the Interactive Floor.



The system tracks people walking over a projection which interacts with them. It is comprised of a webcam, a computer running a POSIX-compliant OS (in our case GNU/Linux and MacOSX, though with some adjustments it might run in Windows as well), OpenFrameworks and Processing (Free Software frameworks), and a beamer.

Here are a few videos of some basic apps:


Interactive Floor - Pong from Keyvan on Vimeo.


Interactive Floor - Prisoner's Dilemma from Keyvan on Vimeo.

(planetalinux.mx and RSS folks - please visit my website to view the links and videos properly)

This is a group project - our team is comprised of Mohamad Ardavan, Eelke Boezeman, Amir Chamsaz, Keyvan Minoukadeh and me, Alejandro Valenzuela.

This project will be exhibited at the Interaction Design Exhibition '09, 6-8 of May, at Lindholmen Science Park, Göteborg - more details, as well as other team's projects, are here: http://ide09.se/.

Our project's official website is http://web.student.chalmers.se/groups/idp09-9/, and we also have a development blog located at http://idp.mexinetica.com/blog.

I've been working mostly on the infrastructure but I'm also developing an app for it. I'll post more details later :)

The source code is available here: http://idp.mexinetica.com/code


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