Programming Fundamentals

Computer Vision Project – Tracking Ring

lucas.desordi@iaac.net — Sat, 01 Dec 2012 20:34:58 +0000

This is the first step of my”people tracker” on Processing.

I have to improve the ‘picking the bigger glob’ and make it follow the object closer to the last detection position, also I want to implement a ‘natural background remover’ and a simple user interface.
As described in the video, I can use the mouse click to select an color and the keyboard arrows to set the tolerance for this color, smoothing the glob region.

I couldn’t work with the OpenCV, so it’s another generic library. Actually i spent more time making the camera+Processing+Java+library work then writing a code. The library I used is this!

Computer-Vision-Drawing-motion

habib.furqan@iaac.net — Mon, 26 Nov 2012 17:01:05 +0000

The aim of this exercise was to use computer vision. Computer vision is a complete field in itself. It has the power to take information from images or videos by complex methods of pixel analysis and etc. It has produced works ranging from art like display to automated robots. The xbox kinetic is an application of computer vision.

http://en.wikipedia.org/wiki/Computer_vision
http://szeliski.org/Book/

So my idea was to use computer vision to draw and trace the motion of a wheels on a canvas. I was already doing an exercise in fabrication class, to use laser cutter and make various wheels, and then look at their motion. So my intention was to capture the motion of these wheels and draw it by using a computer vision sketch in processing . Below are few ideas that i sketched to see how the drawing should look like.

Lucky i come across an sketch in open processing (link) that tracks a specific selected color from camera input.

color selecting from Arfurqan on Vimeo.

Now all i needed to do is to modify the code so that it tracks and it draws at the same time and does it according to required display.

video 1 from Arfurqan on Vimeo.

Computer Vision workshop / multi blob tracker

martin.lukac@iaac.net — Mon, 26 Nov 2012 10:08:20 +0000

For my Computer Vision exercise I decided to work with Multi Blob Tracker Library (Flob)
http://s373.net/code/flob/flob.html designed by Andre Sier and using the Flood Fill
Algorithm. The result is a fluffy cluster of elements resembling the poplar or dandelion seeds,
moving, drifting, floating and clustering according to a tracked movements of a person sitting
in front of a web camera.

on computer vision-paik-times-five-by-flightphase

habib.furqan@iaac.net — Wed, 21 Nov 2012 15:22:07 +0000

I Really like the concept to turning a solid wall into something more then it is. In this case the wall is an interactive canvas on which you use your body to create or animate a random objects.

For more info here is the link

On Computer Vision, body manipulation of digital media.

rafael.vargas@iaac.net — Wed, 21 Nov 2012 13:57:18 +0000

When looking for examples of computer vision projects I found out of the importance of the human body and the performance it will have interacting with digital media. While computer vision deals greatly with recognizing ‘objects’, the identification of human body could have very interesting applications. For instance, this installation called ‘body paint’ is designed to work with any number of people and is scalable to cover small or large areas. The interaction is very simple – movement creates paint. Hidden in the simplicity, are many layers of subtle details. Different aspects of the motion – size, speed, acceleration, curvature, distance all have an effect on the outcome – strokes, splashes, drips, spirals – and is left up to the users to play and discover.

“Body Paint” performance at “Clicks or Mortar”, March 2009 from Memo Akten on Vimeo.

On the other hand there is this very simple and fun project called ‘Body Swap’. This installation transforms your body movements into control of another person. Dance around, jump in the air, do anything you like to make them look silly.
Two people stand in front of the screen, are captured by the camera and turned into paper cut-out versions of themselves. The images are then swapped, so that you each take control of the other. The aesthetic is of a low polygon 90′s video game. Music plays and prompts you to act out to the audience and each other.

Body Swap from Chris O'Shea on Vimeo.

Audience – reference installation

lucas.desordi@iaac.net — Wed, 21 Nov 2012 13:47:49 +0000

After our first ‘Computer Vision’ class, looking for tracking applications I found this simple and nice installation.

Audience – http://www.chrisoshea.org/audience

Audience – rAndom International from Chris O'Shea on Vimeo.

On computer vision and body recognition

Moushira — Wed, 21 Nov 2012 12:49:29 +0000

This is a simple project, in terms of application (image capturing, recognition, image projection) however it is very powerful in terms of effect, given the diversity of people that cross Market st. nevertheless the number of homeless. In a fast paced lifestyle of SF, people might not fully realize who is passing by..which is why projects like this become an eye opening experience to take a moment to stop.
Similarly, the Body Swap project, provides an even more intimate experience, for interacting with people around you :)

This is also super interesting in terms of technique, just as interesting as most of the work done by this wonderful studio

computer vision. Soak, Dye in light

antanaityte.gerda@iaac.net — Wed, 21 Nov 2012 11:28:00 +0000

“Soak, Dye in light.” by everyware (2011) is an empty canvas but when you touch it, its elastic surface stretches and gets suffused with projected vivid colors mimicking fabric absorbing dye. Poking and rubbing with hands or resting their body on this spandex canvas allows visitors to soak this canvas in virtual dye and create own patterns.

SOAK from everyware.kr on Vimeo.

AntiMap Workshop / Data visualization

martin.lukac@iaac.net — Wed, 21 Nov 2012 09:42:26 +0000

Using the Antimap application we are able to record a data file representing our journey.
The csv. file contains information such as your position ( latitude and longitude), your
orientation towards the north (compass), data representing your speed in kilometers per
hour, direction and time of the journey measured in milliseconds.
My intention was to create a visual representation of each piece of data distinctly, so it
would be easier to understand that the final trajectory contains all the above-mentioned
data. From a more narrative and static representation of each data set in the beginning
of the workshop I decided to follow more abstract way of representation, using the simple
geometry of lines and shapes, playing with colors and transparency.
The final visualization draws the lines from data points like threads, weaving each
data line into the trajectory of movement. This forms a visual fabric covering the whole
area of canvas during a period of time. I used the csv. files from two distinct sources
in order to test a diverse visual qualities, resulting in repetitive but different patterns.

antiMap exercise. Home

antanaityte.gerda@iaac.net — Tue, 20 Nov 2012 17:10:46 +0000

What is your home’s relation with you? Is it missing you when you away, anticipate when you are coming back or turning to it’s direction? Making this exercise I’ve tried to visualize it.

home from Gerda Antanaityte on Vimeo.