Joonhwan Lee

MOVE (Maps Optimized for Vehicular Environments)

MOVE Sample Screen
MOVE Display Example

Displays created by location-based software such as GPS mapping applications are often not straightforward to use in the context of driving. Information is crowded and overloaded on the display. Critical information is designed and presented in a way that slows down the rate of uptake, interfering with the process of learning and remembering the route, encoding the information in memory, and making decisions at critical points. This problem is even more relevant in mobile contexts, and when users are performing divided-attention tasks, such as driving.

MOVE Zoom in Context
MOVE, Zoom in Context

This research sets out to examine how visualizing complex mapping information might be useful, by displaying an optimized, salient, and personalizable amount of information to the user. We theorize that information needs will change based on a user's prior familiarity with a route; whether he prefers navigating by using landmarks, route information, or highly schematized survey information; and his current position and proximity to critical points. We propose the development of abstraction and salience mechanisms, approximately scoring impact on perceptual resources, to optimize and reduce complex information to rankable chunks. Next, we propose to build a display system, and to maximize and test the system in real-world contexts.

Demo Movies

Demo 01 Demo 02
Demo Movie #01 (QT, 21MB) Demo Movie #02 (QT, 110MB)

Kinetic Typography

MOVE Sample Screen
Kinetic Typography Example

Kinetic typography is an alternative solution to expressing emotion in text-based communication. Kinetic typography is defined as text that changes in color, size, or position over time. Adding time as a design element to static typography allows for dynamic text in digital media.

Similar to the study of traditional typography of designing static typographic forms, kinetic typography focuses on understanding the effect time has on the expression of text. Kinetic typography has demonstrated the ability to add significant emotive content and appeal to expressive text, allowing some of the qualities normally found in film and the spoken word to be added to static text. Kinetic type has been widely and successfully used in film as well as in television and computer-based advertising. Perceptual psychology research on attention, reading performance, and comprehension has indicated that time-based presentation of text can be used effectively to capture and manipulate a viewer's attention and in some cases improve overall reading performance.

Browsable summaries: providing insight into team work

Browsable summaries, 2007-2008

Worked on the development of a new tool which can be used by instructors to monitor the functioning of a group processes. Following a user-centered design approach, we structure our design process around the following three questions: 1) which group processes should be displayed in the browsable summary tool to support best practices in group facilitation 2) how can these processes be quantified and measured online; and 3) how can these processes and measurements be displayed so they can be understood efficiently.

Based on interviews with 9 instructors, we identified five process assessment categories with subcategories at the group and individual level. We also presented design prototypes using two vignettes to demonstrate how the tool can be used to aid with specific issues raised by instructors. (Co-work with Gahgene Gweon &s; Soojin Jun)

GM/CMU Contextual Car Driver Interface

GM/CMU Contextual Car Driver Interface
GM/CMU Contextual Car Driver Interface, 2001

In this project, we developed a prototype system, the Contextual Car Driver interface that can analyze the driver’s intent and watch the driver’s physical and cognitive state for any impairments or information overload. The prototype combines a smart car environment and monitoring of driver state and incorporates a wide range of input-output modalities and a hierarchy of displays. Several intelligent agents offer capabilities ranging from learning about the driver’s behavioral patterns to proactively helping when needed. [ Slide ]


Dissertation Paper (2008) [ PDF (Double sided) | PDF (Single sided) ]

Thesis Proposal Paper (2006) [ PDF | Slide | Demo Movie (Quicktime, 110MB) ]

Lee, J., Forlizzi, J., & Hudson, S.E. (2008). “Backseat Driving: Evaluating the Effectiveness of a Perceptually-Optimized Navigation Display.” (in submission)

Gweon, G., Jun, S., Lee, J., Rose, C. (2008). “Using Speech to Predict Discrepancies between Perspectives on Participation in Group Work between Instructors, Students, and Observers.” (in submission)

Joonhwan Lee, Jodi Forlizzi, & Scott E. Hudson (2007). “Iterative Design of MOVE: A Situationally Appropriate Vehicle Navigation System,” International Journal of Human-Computer Studies (in press) [ Science Direct DL ]

Joonhwan Lee, Soojin Jun, Jodi Forlizzi, & Scott E. Hudson (2006). “Using kinetic typography to convey emotion in text-based interpersonal communication,” Proceedings of the 6th ACM conference on Designing Interactive systems 2006. [ ACM DL | Slide ]

Joonhwan Lee, Jodi Forlizzi, & Scott E. Hudson (2005). “Studying the Effectiveness of MOVE: A Contextually Optimized In-Vehicle Navigation System,” Proceedings of the ACM Conference on Computer Human Interaction 2005. [ ACM DL | Slide | Demo Movie (Quicktime, 21MB) ]