Cindy Hsin-Liu Kao www.cindykao.com [email protected]
“I consider myself a crafts person. I use the human body as an interface.”
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Born and raised in Taiwan. Has a vibrant street culture, people frequently change their look.
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Moved to Boston to pursue wearable computing degree, but missed the nail art of Taiwan
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Created NailO, finger art as input device
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NailO pairs wirelessly
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Future wearables is blurring the boundaries b/w tech and self
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Do we still have control over our own bodies?
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Cosmetics like hair extensions are seamless but easily removable
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NailO had to be minimal, unobtrusive, afford natural interactions, and stylish. Fingernails are a hard surface, dexterous
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First prototype focused on input
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Second prototype focused on refining aesthetic
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Third prototype incorporated a flexible circuit to accommodate the natural curves of the human body
Software algorithm:
- mask smoothing
- gesture detections tracks up/down, left/right, and press actions
User studies of alternative gestures: different fingers, multi-finger. Achieved 92% accuracy
Use cases: act a as third hand. Private, subtle.
- applications include, remote control while your hands are both busy: while soldering, scroll the screen of a laptop, or similar in the kitchen while cooking
- in a meeting, could use it to control the display of an AR headset
- wearables: linked to devices on your body to control them
“Your style is your visual interface with the rest of the world.”
- Fascinated by body art/modifications and following body mod trends
- was reading about temporary tattoos in Vogue
- bought some to test if they were conductive
- decided to make her own that were conductive
Result was DuoSkin
Fabrication process:
- Enabled by gold metal leaf (copper + zinc) met the requirements: conductive, aesthetic, skin-friendly, affordable/accessible
- Layered silicone overlay, then gold leaf, the electronics, then adhesive
- Create design
- Send to cheap electronic paper cutter
- Remove with stencil
- Apply conductive material
- Apply to skin
Potential DuoSkin Applications:
- Device input: capacitive touch sensing (button, discrete slider, continuous slider, 2D pad)
- Output display: Skin as a display with the addition of a thermochromic material layer
- thermochromic material changes colour when exposed to heat enabling a rudimentary display
- more magical and aesthetically pleasing than on/off LED
- changes color depending on mood
- Wireless communication as an NFC tag
Evaluation
-Gold leaf durability study a. Procedure: 5 participants (4 female) b. Task: create a capacitive touch music controller c. Result: all music controllers were functional, expressive of personal style -Small scale deployment for NYFW
- Influenced by Taiwanese floral patterns
- Robotic floral textiles experiment: floral kinetic robots crawl over body
- motor drive, attached to a series of rollers, able to attach itself to fabric and move around
Why would someone be motivated to wear kinetic accessories? What does it mean?
- Aesthetic-driven interactions (shape changing jewelry, clothing)
- Function-driven interactions (broach becomes microphone/speaker, climate-reactive clothing)
Culture + Self-expression
- Wearables are an expression of our identity
- Approach via craft
- Inspired by tin embroidery, highly involved, made DuoSkin also be a highly involved process and craft
- Craft lives on across generation even as technology evolves
- Shared across generations, incorporates history