Production Method of Readable Tactile Map With Vocal Guidance Function for the Visually Impaired

Production Method of Readable Tactile Map With Vocal Guidance Function for the Visually Impaired

Kouki Doi (National Institute of Special Needs Education, Japan) and Takahiro Nishimura (National Institute of Special Needs Education, Japan)
Copyright: © 2019 |Pages: 22
DOI: 10.4018/978-1-5225-6240-5.ch014

Abstract

Braille/tactile maps are one of the most traditional tools that guarantee information accessibility for children and people with visual impairment. Silk screen printing method, which is employed as one of the traditional production methods of producing Braille/tactile maps, are becoming more and more popular. However, the printing quality requires further improvements. On the other hand, when using a tactile map, it is not easy for visually impaired persons to acquire spatial information based on only tactile sense. Therefore, a convenient technology that allows the acquisition of tactile map information with voice in addition to tactile sense is desired. Thus, in this chapter, an original production method of tactile maps for public facilities that has high readability and voice technology to guarantee information accessibility is introduced. And a production method for tactile maps of public facilities with vocal guidance function to improve the readability of Braille/tactile map is mentioned based on a trial example.
Chapter Preview
Top

Background

In this section, how to develop a production method for tactile maps of public facilities with high readability and advanced technology to guarantee information accessibility is discussed.

People acquire the majority of information visually. Therefore, various attempts have been conducted to guarantee information accessibility for those with visual impairment (American Foundation for the Blind, 2018; Royal National Institute of Blind People, 2018). In the future, the provision of shared services in which the same printed products can be used regardless of visual impaired persons or sighted persons, is desired to move toward an inclusive society from the perspective of “improvement of information gap” and “universal information design”. Under above mentioned circumstances, Braille and tactile maps produced by the silk screen printing method using colorless and transparent ultraviolet cured ink have been printed on picture books in recent years. Therefore, providing a shared service in which children and people with visual impairment and sighted persons can both use the same picture books (Universal Design Picture Book Center, 2018) is beneficial. The silk screen printing method is one printing method based on universal design that creates tactile maps by using Braille, raised dots, raised lines, and raised planar patterns. It can print on various materials such as papers, plastic, and metals and is much more durable compared with traditional other printing methods. Furthermore, it is able to print Braille and tactile maps on visual characters. This method may be applied to the tactile maps of various public facilities. However, the issues of the silk screen printing method make it difficult to express detailed images, and the height of Braille/tactile map is occasionally not sufficient. Some Braille/tactile maps are difficult to read, and improvement in printing quality is necessary. Additionally, the silk screen printing method is not well suited to print a small number of Braille or tactile maps. Therefore, this method is not financially feasible to suit the need of each user.

Complete Chapter List

Search this Book:
Reset