Responsive Enviroments

Critical Reflection of the Learning Outcomes  

  1. To design a multimedia installation that combines physical, aural, visual, time-based and interaction components I selected an Interactive wall. The visual component that would be projected on the wall in my design is 3D images of different shaped leaves. They would be very successful as interactive elements in their ability to change size and colour and rotate as 3D images. I was influenced by the colour of the Painting wall by CEI and the skeleton bones of the Brazilian TWEEN interaction design. My design will take the idea of projected shapes and make them more realistic and interactive with full rotating 3D effects.                    

The aural component of natural sounds of wind and rustling will be made more effective with motion tracking that changes the volume and speed. I will use motion-tracking in an innovative way by first using facial recognition to identify the number of people that can interact simultaneously with the projections, the area where each person plays and to determine that the movement is human.

Movement will then be tracked of all light segmented into separate components. The size of the light shapes will be set to a size that picks up the movement of all body parts so that the leaves can move in any pattern that the player makes with his body movement. This achieves the aim of being a fun interactive and immersive experience for the player.

The computer vision software I will use can be trained to learn to recognize specific body gestures with hands or even arms, hips and legs. This will create a very interactive effect whereby the player is playing a game and when he finds these movements then special effects in sound, colour and animation will be triggered in the projections.                    

My time-based element will be triggered when human movement stops then the leaves will all fall to piles at the bottom.   

My design content of hyper-realistic 3D effects and colorful transparent leaves combined with natural sounds and motion tracking software is an innovative play on the theme of using technology to express nature and art in an interactive modern world. I want to express to the players the need for a balance of art, nature and technology is this responsive installation.

  As an approach for the future to being a more immersive experience I would like to include the other natural elements besides wind. Earth, fire and water could be added to the experience by having the leaves burst in flame with certain movements and have rain triggered by other movements to put out the burning leaves.  

  2. The technology I selected to design my wall installation was to combine a digital light processing projector, speakers, and a wide angle webcam and computer processor using Max MSP/Jitter software. I was influenced by wall installations like those from && float using ReacTIVision software with Processing 1.0. The hardware needed is the same as many existing responsive installations as this is the standard for technology in performance art and theatre. A very effective interactive experience can be achieved by this combination of camera, computer process, projector and speakers in my location of the Merchiston campus.          

  Max is an appropriate program to develop software for physical computing and computer vision. For this project it is the best choice as there are many examples on the theory of computer vision.  

  Cv.jit is a library of externals and abstractions developed by Jean-Marc Pellitier that I researched. The computer vision functionality that I found will make the interactive components of the installation effective and entertaining. Facial recognition, image segmentation and motion tracking and image training and learning for recognition are all current theories that can be programmed with this library. Using these theories in my responsive wall this will add very successful interactive elements for the players that will educate and inform about the technology of computer vision.       

  3. My prototype was developed in software using Max/MSP/Jitter to demonstrate the theory in practice of computer vision. It was a working proof of my design concept for the installation. I focused on the jitter components in Max that showed how a webcam image can be processed to track motion by segmenting light into blobs and find the bounds and movements of human faces my using facial recognition models.

  I abandoned the sukkah object used in exercise 4 as this only tracks the movement of colour pixels and I needed something that would be more able to distinguish and track human movement. The cv.jit library has pixel tracking and blob touch tracking objects but these were also not appropriate to the type of human interaction I needed to detect from the digitized camera images.

  The faces object, even though it is a very intensive processing effort to compare the algorithm of the facial model to each camera image, was the most effective method to determine that it is human movement. It can determine how many faces are in front of the camera first. This worked well to see how many human bodies to track.

  The image segmentation of the blobs objects was a good way to divide and label all the body parts to be tracked as shapes of light.

  4. The library also contains objects for pattern learning and recognition. After the prototype I would focus on the training of the computer to save predefined movement patterns that could be compared and recognized. Training and recognizing patterns in gestures is a very popular current physical computing practice and has many applications in the modern world.  

  The visual component of the work will be creating 3D images of leaves that can rotate and be viewed from any angle. This effect is currently used in video games and virtual tours extensively. The effect of being able to see all sides of an object and manipulate it by movement will serve as the entertaining visual focus of the installation.        

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}

A digitizer will grab and transform the video image into a Jitter Matrix. The video digitizer used is Microsoft Windows DirectX compatible. A Jit pwindow will display the digitized video image. A queue based metronome will bang messages to open and close the camera and by executing these in rapid succession will be able to create movement in the pwindow.  

    Human face recognition has the ability to find human faces in video images and then track the bounds of the movement of the face. To do this the image needs to be converted to a greyscale and sized down to 160 over 120 pixels as the computational algorithm is resource intensive. The model of the face can be changed as well as the number of faces to process. The output of the bounds where the face is found will be used as the coordinates of the where the leaves will move on the projected output screen creating the effect of leaves blowing around the body and head.

This software comes from the Computer Vision Jitter library of externals and abstarctions frOm Jean-Marc Pellitier cv.jit  

    Image segmentation motion tracking is able to label each component in the image separately and divide each blob and track each mass by its centre. The image needs to be converted to a binary greyscale and can be set to a threshold and radius to determine how fine the segmentation needs to go. 

Labelling of each segment is then done before the centre of each component in the image can be determined. Drawing out the centroids then can track the position of all movements in the image. 

This software comes from the Computer Vision Jitter library of externals and abstarctions frOm Jean-Marc Pellitier cv.jit

I wanted to explain why I choose to have this poster and how I delivered that design.

Since my project has to do with a motion tracking was thinking that to create a movement into the poster is a must. That's why I created a photo of my "passer-y student" with his hands like that, maybe something like the Indian Goddess Kali :).

I did crop the foto of the "student" and duplicate with more hands in opacity to create this movement effect.

the original photo

For the poster I choose to work on Photoshop and Illustrator, Photoshop for the pictures and the graphics and Illustrator for the text, I did a combination of these two programs with exporting from Photoshop in PDF and .jpg.

With brushes I designed the leaves and had to add the settings which was a nightmare and work on the spacing and color correction etc. but the result makes me very happy. 

DESCRIPTION OF THE PLACE

The place I am having my project up is the white wall across the glass room B14 which is the exhibition area. Is the path to go to the design studios for the 4th year students and the B21 studio shop (stationary shop). Going through the doors after the white wall you will see:

*This is also the reason I choose to have that place because of the art school students.*

  At the left of the white wall there are:

B25 Design Studio (BDes Hons Design and Digital Arts)

B15 Polymer Engineering Studio

B24 + B23 + B20 Design Studios for MA

B16 (big part of studios) which is also the studio that the most noise comes from

B21 studio shop

the way to go to the Kilby center

  At the right of the white wall there are:

the path that takes you to NSA (Napier Student Associations) offices

the way to the canteen 

the way to the elevator to go upstairs to level C, D, E

and in general the way to take you to exit the university.

  some of the places I mentioned above

WINDOWS AND DOORS

There are none of that but 2 doors next to that white wall, opposite there is the glass exhibition area B14, the glass room as they call it. Main reason to go through this wall is the design studios and the design shop B21, the Kilby center with the computers and the canteen. The doors to the studios are always open, which make the passing way easier.

HEIGHT AND WIDTH OF THE WALL

The wall is 5 to 5,5 meters long and as regards the height 1.75cm  (Vasilis height) + 210cm + 210cm + 110cm = 228cm (let's say 230cm in total). The reason I have it like this is because I measured Vasilis and then above him added the notebook I had in 2 and a half times.

  LIGHT NATURAL OR ARTIFICIAL

Light is artificial with the 2 lamps on that part, above the wall and 6 on the whole place. The only natural light can get is from the office that there is behind that small narrow window between the wall on the right of the white wall.

FLOOR AND CEILING

Floor has a grey/graffiti carpet that it changes to red cherry carpet once you move to the design studios. Probably is a fire proof.

Ceiling is a white aluminum with little holes and with fire alarm and 2 main plastic lamps fitting into the ceiling, the size of these plastic lamps are 180 x 10.

PEOPLE WALKED PAST THE PLACE

While I did my research for 30' - 40' they walked past 40 people some of those there were the same, have in mind that is Easter break so the university in general wasn't that busy, which means normally there are more people walking that way. From the other hand only 3 people passed the way to NSA offices which is the location of the red wall.

BUSY TIME - QUIET TIME

Lunch time is the busiest time of the day, since the university opens at 9 - 5 then they are busy between 10 - 14 but really depends the projects and the classes. A person told me that there isn't quite ish time, they are busy all of the time (the studios).

Also because of the design shop (B21) the location gets busy almost all day because of the students needs. Also some of studios students they were going to the Apex cafe and the canteen so they increase the frequency of the popularity. I was there at 14:20 and there were more people than the 15:00 o'clock that I left.

Also at that time only 3 people passed the red wall, the way to the NSA offices and that's the reason I didn't choose that location.

After 15:00 I would say is more quiet because the busiest time is the lunch time but that depends the projects the students they have to do, Interview one person and he told me that there isn't quiet time because the project they have to deliver.

IS IT NOISY THERE?

In general the place was quiet apart from the noise was coming from the studios B16, engineering studios. Was noisy because the use the Laser cutter and was loud. The B16 studios there were 3 different studios and they were with different part of design. Probably they have included all the engineering programs there.

INTERVIEW

I did interview a digital art student while he was passing the wall, did question him few things, but it was a quick conversation. Also did interview another student of the engineer part while he was doing a project on the B16 studio using the laser cutter.

They were both on the 4th year, it was more convenient (the place) because of the studios, one was walking through and one was at the studio B16.

There were students of Product Design Engineering (Hons) & Design and Digital Arts (Hons).

My concept to personalize Merchiston campus is to use a camera to record movement of the user and then project leave images on to a campus interior wall. The user will with sweeping hand and body movements move the leaves around. Sounds will accompany the rustling of the leaves and the sound of blowing. Leaves will be of different types and different bright colours.