Shadow Sound System Embodied with Directional Ultrasonic Speaker: User Following Sound System Enabled with Vision Tracking Technique. - Seongteak Jang; Dongjun Suh; Seongju Chang (ICISA, 2013)

UbiSpace: Prototypical Smart Space Built upon Swarm Intelligence Middleware Platform. - Hyunseok Kim; Dongjun Suh; Seongteak Jang; Jinsul Kim; Seongju Chang (ICISA, 2013)