# Multimedia Vision for the Visually Impaired through 2D Multiarray Braille Display
## 5 Conclusions  
This study proposes a 2D multiarray braille display device for the VI. We developed a method for delivering braille translation and multimedia information for 2D multiarray braille display to overcome the limitations of the 1D conventional braille devices. Besides, since texts are expressed in several lines, the VI users will be able to read eBooks efficiently and quickly. This research also enhances the image expression on the braille display by extracting edges and translating images for the braille. This method provides ways to sense visual media (e.g., videos, pictures, and images) through touch. With the multiarray braille display, diverse multimedia contents (e.g., text, figures, and audio status symbols) can be effectively converted to braille. Furthermore, it allows playing audio files on the smartphone as well as the tablet that replaces the braille device. This novel 2D multiarray braille display technology is very useful for the VI as it increases their accessibility to information and helps to navigate through multimedia contents. From the educational perspective, the 2D mobile braille display can be very useful for obtaining information such as literature, scientific figures, and audio-based education. However, in future works, further studies must be conducted on braille devices and should be tested by VI users. The most preferred research would be methods to display videos on a cutting-edge braille device. Hence, the current challenge is to develop adaptive software with a new concept braille display.  
Conceptualization and Data curation and Writing--original draft, S.K.; Data curation and Investigation, E.-S.P.; Project administration and Supervision and Writing--review & editing, E.-S.R.  
This work was supported by the GRRC program of Gyeonggi province. [GRRC-Gachon2017 (B01), Analysis of behavior based on senior life log]. It was also supported by the MSIT (Ministry of Science and ICT), Korea, under the ITRC (Information Technology Research Center) support program (IITP-2019-2017-0-01630) supervised by the IITP (Institute for Information & communications Technology Promotion).  
This research was partially directed by Professor [PERSON] at Gachon University and was extended to the business model with real 2D braille product. In addition, we would like to thank [PERSON], [PERSON], [PERSON], and [PERSON] who have helped to carry out this research.  
The authors declare no conflict of interest.  
The following abbreviations are used in this manuscript:  
\begin{tabular}{l l} DAISY & Digital accessible information system \\ VI & Visually impaired \\ GPS & Global positioning system \\ RFID & Radio frequency identification \\ LED & Light emitting diode \\ NoIR & No infrared (filter) \\ EPUB & Electronic publication \\ TTS & Text-to-speech \\ NCC & Navigation control center \\ NCX & Navigation control center for extensible markup language \\ XML & Extensible markup language \\ SMIL & Synchronized multimedia integration language \\ HTML & Hyper text markup language \\ HD & High definition \\ SD & Standard definition \\ \end{tabular}