고령자의 기억 증강을 위한 액자형 앰비언트 디스플레이

There is growing demand for display systems to help elderly people with memory decline as elderly people's population rates get higher. This paper suggests a new ambient display system in which photos are visualized based on users' implicit interaction and it doesn't make the users pay attention to the display too much. We use an RFID reader and tags to recognize each user, and use ultrasonic sensors to measure the distance between the user and the display. Using the user information the proposed system can automatically control the level-of-detail for visualization. If the user is located at a long distance from the display, it shows the next picture in the order that they've been sorted. If the user steps in the Interesting Zone, he or she can navigate the 3D space reconstructed based on a photo with a vanishing point or a vanishing line. The user can explicitly interact with the display using the touch screen menus. As emergency cases occur, the display's frame with LEDs changes to reflect them with visual cues. The proposed picture frame style display is useful for elderly people and takes advantage of combining with explicit and implicit interaction.