Computer-Human Interactions

KAIST student projects

Smart Ballet Point Shoes
Wearable electronics (physical computing) project by HyeJi Kim, KAIST (2017)

This project explores self-evaluating systems for ballet students to track their turnout and body alignment status through smart ballet pointe shoes. In classical ballet, turnout, the outward rotation of the hips, is essential to training dancers to perform various ballet movements and postures. Body alignment in ballet is what is considered good posture. Proper alignment is the foundation for all ballet technique. However, finding and realizing these two elements by oneself is difficult and requires significant experience. In this paper, turnout adjustment through pointe shoes with LED visual cue and body alignment posture checking using iPi Mocap Studio is proposed and applied to check dancers’ posture status.

Embedded ballet shoes and Lily Pad Arduino as practice and learning guide

Survey results for students

Survey results for professional dancers.

Embedded ballet point shoe feedback system

Real-time feedback system components: Microcontroller, sensors, and LED indicators

(Left) Benesh movement notation system, (Right) BMN grid and joint position information

Motion capture process to complement sensors placed on the ballet points shoes.

Discussion and getting feedback from colleagues and researchers

Improvisational Dance-to-Sound
Dance as Expressive Gestural Controller for Audio-Effects

Wearable electronics (physical computing) project developed by HyeJi Kim, KAIST (2017). This project explores live audio-effect manipulation system guided by human body movements. The proposed interface allows users to intuitively explore musical structure. Through body expressions, users can manipulate not only their surrounding space but also sound distortions. Depending on the user’s position, the prototype’s frameworks of sound panning presents natural instant feedback when it is beyond the threshold or beneath, which in turn facilitates more intuitive interactions.

A choreographer, especially in contemporary modern dance, arranges body movements and expressions to existing music or works with a musician to create a novel musical score for the performance. The dancers then synchronize their movement to the music; choreography responds to the music as fixed-output for the movement. However, in modern dance, the movement arrangements are not completely fixed to the music.
Choreography allows, or even calls, for a certain degree of spontaneity and real-time interactions. The performance-based artworks need to be comprised of structured improvisation not only in dance choreography but also within musical layers, while allowing dancers the opportunity to invent their own elements and
contribute personal style into the performance. It has become expected for the performers to interact with and manipulate the varied environment they are creating through their movement.

For more detailed video about this project see this link.

Diagram of the mapping system between body movements and musical effects. For generating the fast tempo with high pitch, performers should move their own body towards the right side along the X, Y, and Z-axis.

Recording Setup

Recording set up with the kinect 2 sensor, cameras and computer console.

Bandicam motion recording and mapping of dance to music. Max/MSP modules, allowing for panning the sound.