公共空間中大型多點觸控螢幕牆之使用者操作與互動行為探討─以Photo DIG 介面為例

Abstract

As computers become pervasive in our daily life, researchers bring up the idea that technologies and computers should offer friendly interfaces for their users, and become the bridge between people and digital information. Natural user interface, such as Multi-touch, is the most popular topic in Human-Computer Interface today. Multi-touch can not only give us the ability to use more fingers simultaneously to interact with the objects on the screen without traditional input devices, such as physical mouse or keyboard, but also provide the possibility of multi-user interaction. These characteristics of Multi-touch blur the line between physical and virtual worlds, and lead the concepts of Human-Computer Interaction to a great revolution.The rise of Multi-Touch technology enables new ways of interacting with information. The developments of Intuitive gestures and innovative interfaces are still ongoing. The generality of user studies on Multi-Touch display are in laboratory settings, in other words, less focus on public Multi-Touch display. Multi-Touch has the potential to be applied in museums and exhibits because it can support fluid interactions, and allow multiple users to interact with exhibition's contents through rich and various gestures simply created by their fingers or hands on the screen simultaneously. This study wants to explore the possibility of the multi-touch interface, and to observe what kind of behavior and interaction will occur when people face a new form of interface in a public space. To reach the aim, this paper presents a 100-inch vertical multi-touch wall display“∞Touch” in NCKU Art Corridor, and a multi-touch photo application“Photo.DIG” which is inspired by the natural gesture “DIG”. In addition, this study holds an exhibit of historical photos of NCKU, and then does field trial using video observation and on-site interview. Finally, analyzes the data from the field trial and conclude the findings. To find some considerations and requirements of people who use a large multi-touch public display, which can be used in more related researches and applications in the future. This paper presents the framework for five interaction phases of public Multi-touch wall: Pedestrian, Visitor, Audience, User and Operator. When people face a large Multi-touch wall in public space, there is some general behavior: (1) Rich and various gestures and behavior. (2) Parallel Use in vertical or horizontal space and Turn-Taking. (3) Cooperation and help behavior. (4) Performance and the influence of audience. (5) Playful games and competitions. (6) The sense of territoriality. (7) The ownership of objects, the leading role and director. (8) Conflict management. (9) The switch between Operator and User. (10) Different ways of learning. (11) Discussion and reminiscence of photos. (12) Exhibition content and Multi-touch experience.