A new Japanese input method for virtual reality applications

Kosuke Komiya, Tatsuo Nakajima*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In recent years, virtual reality is becoming popular with the advent of PlayStation VR and mobile VR. However, due to the restrictions of the hardware, it is difficult to reproduce the same thing in the virtual space, as it is in the reality. One of the typical examples is the character input. It is extremely difficult to reproduce convenience and speed equivalent to traditional used input methods such as personal computer keyboard input or smartphone flick input, in the virtual space. Therefore, in this study, we aim to propose a new character input method, focusing on typing Japanese characters, which has an input speed at a certain level, is touch-typable, and requires no controller in a user’s hands. The proposed approach uses Leap Motion as an input device. By tracking the movements of the finger of a user, the user selects a pair of a consonant and a vowel with two bending and stretching movements, which makes a Japanese letter. From a preliminary experiment, our method achieved the input speed of 42.1 Characters per Minute. In addition, this paper discusses the duration of the practice needed to use this method.

Original languageEnglish
Title of host publicationHuman-Computer Interaction. Theories, Methods, and Human Issues - 20th International Conference, HCI International 2018, Proceedings
EditorsMasaaki Kurosu
PublisherSpringer Verlag
Number of pages13
ISBN (Print)9783319912493
Publication statusPublished - 2018
Event20th International Conference on Human-Computer Interaction, HCI 2018 - Las Vegas, United States
Duration: 2018 Jul 152018 Jul 20

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume10903 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Conference20th International Conference on Human-Computer Interaction, HCI 2018
Country/TerritoryUnited States
CityLas Vegas


  • Japanese character input method
  • Learning effects
  • Mobile virtual reality

ASJC Scopus subject areas

  • Theoretical Computer Science
  • General Computer Science


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