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Body Brush

Body Brush creates a human-computer interface that transforms unique human body language into 3D paintings in real time. With a locally developed motion-analysis system that can effectively capture human 3D motion data, the interface enables users to interact intuitively with the machine and provides an unprecedented aesthetic experience.

Innovation
There are three innovative elements in the Body Brush project:
  • Human body as a brush. By mapping the user's body gesture, motion path, and body energy to a set of visual attributes, Body Brush turns the human body as a whole into a dynamic brush, instead of just relying on hands to control tools as in traditional painting.

  • A robust frontal-infrared illumination system and motion analysis techniques to recognize the 3D body motion.

  • Visualizing the 3D painting process in a semi-immersive virtual 3D canvas. Paintings created with Body Brush are three-dimensional and can be viewed with a stereo projection system. Since body gestures are 3D, Body Brush painting inherently preserves the 3D body-motion data and reflects the aesthetic cognitive process that generates the painting.
Vision
Future extension of Body Brush will focus on developing a sensing system that includes other sensing modalities such as sound input, pressure input, and other human affective inputs. The new set of information about human-body language will be further exploited to expand the dimensions of audio-visual feedback and thus enrich the human expression.

Goals
  • To develop a motion sensing and analysis system that is inexpensive, portable, yet effective. The system does not require the user to wear any sensor markers or clothing of specific colours, so it provides freer and more immersive interaction between the user and the machine.

  • To build a human-computer interactive environment for visual artists to create 3D artworks, for choreographers to work in a real-time interactive stage environment, and for museum and gallery attendees to enjoy a fun and thought-inspiring interactive installation.
Contact
Horace H.S. Ip
City University of Hong Kong

Contributors
Hay Young
Alex C.C. Tang
City University of Hong Kong






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