Human Computer Interaction

Introduction

Recent advances in human-computer interaction techniques have resulted in significant enhancement of user experience in different domains. Rather than being restricted to the use of keyboard and mouse for interactive purpose, which requires the learning of unnatural actions such as typing and clicking, and are particularly awkward to use in a 3D interactive environment, current HCI techniques make use of our natural capabilities such as speaking, gesturing, head turning and walking to facilitate the user-machine communication process. For example, speech recognition, which directly transforms spoken commands or dialogs into their textual forms, will minimize the required amount of learning for novice users and will also allow us to bypass the restriction of operating a miniature keyboard in mobile devices. The possibility of speech input will also be invaluable to users with different levels of dexterity impairments. On the other hand, gesture and motion-based interface,...