A study on the design of finger position-aware virtual keyboards

다국어 초록 (Multilingual Abstract)

As the number of touch screen devices increases, the virtual keyboards have become more common these days. Because those can be applied to any touch screen size, the virtual keyboards and touch screen devices have a symbiotic relationship. However, current virtual keyboards are known to be slower and less convenient than physical QWERTY keyboards because they simply imitate the traditional QWERTY keyboards on touchscreens.
In order to improve virtual keyboards, I consider two reasonable assumptions based on the observation of skilled typists. First, the keys are already assigned to each finger for typing. Based on this assumption, I suggest restricting each finger to entering pre-allocated keys only. Second, non-touching fingers move in correlation with the touching finger because of the intrinsic structure of human hands.
This paper checks whether the correlations between all fingers exist, and then suggests a novel virtual keyboard using two proposed observations. Finally, to show the effect of each observation, the new keyboard compared with existing virtual keyboards. Through three experiments, the proposed keyboard outperforms existing virtual keyboards with respect to the typing speed and accuracy. Therefore, this paper contributes to the design of future virtual keyboards.

목차 (Table of Contents)

• Table of Contents
• ABSTACT I
• TABLE OF CONTENTS III
• CHAPTER 1 INTRODUCTION 1
• CHAPTER 2 RELATED RESEARCH 5
• 2.1 Improving virtual keyboards 5
• 2.2 Virtual keyboards with computer vision technologies 7
• CHAPTER 3 PILOT STUDY 8
• 3.1 Experimental design 8
• 3.2 Result 11
• CHAPTER 4 EXPERIMENT 1 15
• 4.1 Experimental design 15
• 4.2 Multinomial logistic regression 19
• 4.3 Result 22
• CHAPTER 5 PROPOSED VIRTUAL KEYBOARD PROTOTYPE 29
• CHAPTER 6 EXPERIMENT 2 31
• 6.1 Experimental design 31
• 6.2 Results 32
• CHAPTER 7 DISCUSSION 37
• CHAPTER 8 CONCLUSION 42
• REFERENCES 43
• APPENDIX 48