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Jinha Lee


Publications by Jinha Lee (bibliography)

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Lee, Jinha, Post, Rehmi and Ishii, Hiroshi (2011): ZeroN: mid-air tangible interaction enabled by computer controlled magnetic levitation. In: Proceedings of the 2011 ACM Symposium on User Interface Software and Technology 2011. pp. 327-336. http://dx.doi.org/10.1145/2047196.2047239

This paper presents ZeroN, a new tangible interface element that can be levitated and moved freely by computer in a three dimensional space. ZeroN serves as a tangible representation of a 3D coordinate of the virtual world through which users can see, feel, and control computation. To accomplish this, we developed a magnetic control system that can levitate and actuate a permanent magnet in a predefined 3D volume. This is combined with an optical tracking and display system that projects images on the levitating object. We present applications that explore this new interaction modality. Users are invited to place or move the ZeroN object just as they can place objects on surfaces. For example, users can place the sun above physical objects to cast digital shadows, or place a planet that will start revolving based on simulated physical conditions. We describe the technology and interaction scenarios, discuss initial observations, and outline future development.

© All rights reserved Lee et al. and/or ACM Press

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Lee, Jinha and Ishii, Hiroshi (2010): Beyond: collapsible tools and gestures for computational design. In: Proceedings of ACM CHI 2010 Conference on Human Factors in Computing Systems 2010. pp. 3931-3936. http://doi.acm.org/10.1145/1753846.1754081

Since the invention of the personal computer, digital media has remained separate from the physical world, blocked by a rigid screen. In this paper, we present Beyond, an interface for 3-D design where users can directly manipulate digital media with physically retractable tools and hand gestures. When pushed onto the screen, these tools physically collapse and project themselves onto the screen, letting users perceive as if they were inserting the tools into the digital space beyond the screen. The aim of Beyond is to make the digital 3-D design process straightforward, and more accessible to general users by extending physical affordances to the digital space beyond the computer screen.

© All rights reserved Lee and Ishii and/or their publisher

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Lee, Jinha, Teerapittayanon, Surat and Ishii, Hiroshi (2010): Beyond: collapsible input device for direct 3D manipulation beyond the screen. In: Proceedings of the 2010 ACM Symposium on User Interface Software and Technology 2010. pp. 393-394. http://doi.acm.org/10.1145/1866218.1866236

What would it be like to reach into a screen and manipulate or design virtual objects as in real world? We present Beyond, a collapsible input device for direct 3D manipulation. When pressed against a screen, Beyond collapses in the physical world and extends into the digital space of the screen, such that users can perceive that they are inserting the tool into the virtual space. Beyond allows users to directly interact with 3D media, avoiding separation between the users' input and the displayed 3D graphics without requiring special glasses or wearables, thereby enabling users to select, draw, and sculpt in 3D virtual space unfettered. We describe detailed interaction techniques, implementation and application scenarios focused on 3D geometric design and prototyping.

© All rights reserved Lee et al. and/or their publisher

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URL: http://www.interaction-design.org/references/authors/jinha_lee.html