Update on the MVP
Beat Conveyor- Minimum viable product
Biomechanics of Expressivity: Final Presentation
Final Biomechanics of Expressivity Presentation
Ultimately, I tend to think that using a bare biomechanical model of the kinetics and kinematics of human gesture to produce an “expressivity vector” is a successful failure. The result does not quite mesh with human expectations of gesture. We clearly possess filters and thresholds and feature extraction models in our wetware that does not quite sync up with this particular approach in software. However, all is not lost. The visualization of two people interacting towards one another was compelling. Perhaps investigating the negative space between two people as they interact is more meaningful as an input to a system than their individual gestural expressions taken together.
The code for calculating expressivity, as I have defined it, along with the code that generates the visualization of two people interacting in real-time can be found in my github account. As-is, the Expressivity Engine is quite close to being used as a general purpose library module for other projects. Before I finish the “library-ization” of this code, I plan to sit with the results for a while to determine in what direction to take the final product.
ExoStim Presentation
April 16th Presentation
Here is my presentation for today
Progress as of 4/16/13
My research process for this infant documentation tool has been very layered like an onion and has almost felt like a thesis. But I’m almost there. 🙂
http://docs.google.com/presentation/d/1UiafLampk8_oP7_WWWlWwxG0qX4RBUFW_g_Khn9ipGA/edit?usp=sharing
A Story of Energy Parasite – for Presentation
Please go to my blog to see the latest update.
Say “Hello World”
I’m an energy parasite on your finger!
Where it comes from?
The ancestor
The ancestor of our energy parasite is a bio mechanical energy harvester from a paper: Biomechanical Energy Harvesting: Generating Electricity During Walking with Minimal User Effort.
[First draft] Literature Reviews
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Grandfather’s father
A big system: harvest body energy, monitor body conditions and visualize the data on/around body. Soul: To opportunistically harvest small bit of energy from human motion. Thanks to Tom, I got clear that the aim of this project is to arouse people’s awareness to the potential energy from our body movements.
Harvest Small Energy from Human Motion
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Grandfather
A flex sensor attached to the index finger. Through Processing statistics, in 1650 seconds (27.5 minutes), the total number of significant finger movement is 2463, so my index finger move 1.493 times per second.
Bio-Energy Parasite: Finger Parasite – Minimum Viable Product
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Grandmother’s brother
This guy is “Breath Parasite”. He doesn’t have much relationships with our current energy parasite, but might have his own children somewhere.
Bio-Energy Parasite: Breath Parasite – Minimum Viable Product
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Father
Mr. Finger Parasite. The idea is to make a “parasite” on a finger. The “parasite”, as a ring, could opportunistically harvest small bit of energy form the movement of a finger.
Finger Parasite – Product Development
What it looks like now?
Energy Parasite: I’m on Your Finger – Product Development 2
Where it would go?
More Comfortable: currently I use wires to help to attach the parasite onto the index finger. Though it’s flexible and could fit for different fingers, it’s not confortable.
More efficient: Test different ways of attaching the parasite in play testing. One possible modification might be increase the distance from the body of parasite to it’s distal wires. This would increase one side of the lever so that small motion of middle phalanges could create more pressure on the piezo element.
More elements: I’d like to use more materials that could be found in our daily life, or even some waste things. Make the parasite more interesting at the same time accesible.
Energy Parasite: I’m on Your Finger – Product Development 2
Hello world!
This is my energy parasite, in prehistoric times. I’m sure it’s future generations could be better.
Materials
The small signal diode solved the problem that the current generated by piezo element is too little to be forwarded. The max forward voltage is 1V when the current is 10 mA [Datasheet]. The 3mm LED works better than the 5mm one under the low current low voltage condition. Its DC forward drop is 1.8-2.2V, and suggested current: 16-18mA [Datasheet]. The piezo element also works better than the previous one, more sensitive, more powerful [Datasheet].
Tests
Through the tests, the 1 uF capacitor turned to be the best choice among other capacitors.
The First Generation
Future Generations
LED: lower current, higher luminous intensity; small size.
Capacitor: small size.
More Comfortable: currently I use wires to help to attach the parasite onto the index finger. Though it’s flexible and could fit for different fingers, it’s not confortable.
More efficient: Test different ways of attaching the parasite in play testing. One possible modification might be increase the distance from the body of parasite to it’s distal wires. This would increase one side of the lever so that small motion of middle phalanges could create more pressure on the piezo element.
More elements: I’d like to use more materials that could be found in our daily life, or even some waste things. Make the parasite more interesting at the same time accesible.
Digitizing Facial Movement During Singing: Final Steps
Presentation: LINK