The popularity of eBooks has spread in recent years with the launch of eBook readers and more contents. Managing purchased eBooks is becoming problematic with the spread of eBooks which allows individuals to possess many books as digital documents. The volume of eBooks as well as digital documents owned by individuals is also increasing, necessitating the development of a method to search and browse them. This study led to the development of a Private Library Surfing (PLS) system as a browsing system for digital documents typified by eBooks, etc. in order to resolve this problem.
Recreational activities have an effect of improving the quality of life, but the recreational activities that visually-impaired people can enjoy are quite limited. "Passive" recreational activities that one can enjoy by reading, watching, or hearing (in particular those that visually-impaired people can enjoy) have increased through the development of synthesized voices. However, there are still only a few recreational activities such as sports and games that they can proactively participate in and enjoy. Videogames are one of such "active" recreational activities popular among visually-impaired people, however, interviews revealed that it requires a huge amount of effort for them to enjoy videogames. In the present study we developed a game that visually-impaired people could also actively enjoy.
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