Hyungsin Kim

WiiArts: creating collaborative art experience with WiiRemote interaction

WiiArts is an experimental video, audio and image processing art project that makes use of pre-existing sensing technologies provided by Nintendo WiiRemotes and a Sensor Bar. Currently, most WiiRemote-based physical interactions have been designed to mimic the gesture of body movement in sports and other action-based games. These Wii games are generally competitive in nature, and players interact by responding to predefined interaction rules in either a single-user or multi-user mode. Making use of the WiiRemote as a pre-existing tangible and embedded interface, we explore applications that can engage participants in active and expressive art creation in a collaborative manner. In this paper, we describe several prototype applications based on this concept: Illumination (draWiing), Beneath (Waldo), WiiBand, Time Ripples. In these applications, three interactors can work together to compose both images and sounds.

Home-based computerized cognitive assessment tool for dementia screening

With a rapidly aging population worldwide, developing alternatives to enhance current cognitive screening practices is becoming increasingly important. The Clock Drawing Test, a paper-and-pencil test, has been used as one of the most popular cognitive screening tools for dementia. In this paper, we present our approach to developing a home-based computerized dementia screening tool, the ClockMe System, which we developed based on our observational study of the current practice of dementia screening at a clinic. The ClockMe System has two main parts: The ClockReader Application and the ClockAnalyzer Application. By using the ClockReader Application, older adults can self-administer dementia screening at home. The ClockAnalyzer Application enables medical practitioners to review and monitor the screening results of their patients. We conclude our paper with preliminary user evaluation results and suggestions for future implementation. The study shows the potential of computing technologies that can advance the current practice of dementia screening.

Grocery hunter: a fun mobile game for children to combat obesity

This paper presents a handheld mobile game, Grocery Hunter that encourages children to take on healthy eating habits. Children can use a pocket PC to play the Grocery Hunter game to learn about food nutrition and healthy food choices. Childhood obesity in the United States has already reached epidemic proportions. The best way to help children attain and maintain healthy weight is through physical activity and nutritious eating. Our design addresses nutrition directly by teaching children healthy eating habits using an interactive game in the grocery store.

Games for Health: Design Cognition-Focused Interventions to Enhance Mental Activity

Older adults want to proactively protect their aging cognition with various possible ways. Cognitive intervention has been proposed as an effective way to improve memory loss problems. In this paper, we present the CogStim Game, an iPad application for older adults to exercise their memory. For example, by practicing name-face matches through the medium of a game, older adults would have a chance to stimulate their cognition. Together with the game description, we will also present our design rationale behind the game development. The CogStim Game would provide a more accessible and effective way to address our society’s concerns due to an increasing aging population.

Using pen-based computing in technology for health

Advanced technologies open more possibilities to interact with computers in various different ways. Especially, pen-based computing provides people with an intuitive way to use a computer. In this paper, we present our research on developing pen-based neuropsychological assessment tools for older adults with cognitive impairment. First, we explain the background information and motivation to design technology for the aging population. Then, we describe our two applications: ClockReader and TrailMaker. We then discuss technological affordances to support medical assessment tasks and conclude that pen-based computing could contribute to increase the efficacy of a computer-based assessment tool.

Curved-straight lines-analysis (CSLA) algorithm for handwritten digit recognition enhancement

In this paper, we propose a new recognition algorithm for handwritten digit recognition. This algorithm is designed to enhance the recognition accuracy of current Microsoft SDK recognizer. The algorithm recognizes the unique signature of each number by comparing curved and straight lines, and writing sequences of the stroke. Through the trial experiments, we achieved 97.67% of positive recognition accuracy.

Exploring technological opportunities for cognitive impairment screening

In this paper, I present continuous research on developing a novel computerized screening tool for people with cognitive impairment. With the quickly growing aging population, more effectively accessible screening tools need to be developed. In order to gain an in-depth understanding of the possible technological opportunities, I conducted clinical practice observations, surveys, and interviews with older adults, as well as medical practitioners, such as neurologists and neuropsychologists. Based on the analysis results, I identify several issues in the current practice. I then present an ongoing progression of the development in order to solve the issues with future directions.

Promoting Positive Employee Health Behavior with Mobile Technology Design

In this paper, we present an augmented mobile technology that can enhance the positive health behavior of employees, as well as companies’ social welfare. Our proposed mobile technology encourages walking behaviors among employees, which are then transformed into monetary incentives or a tangible donation. We draw on two social behavior theories for our technology design and also introduce a conceptual model that provides a “step-by-step” approach to enhance employees’ health and improve social welfare.