• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.447-448
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• 2022

본 논문에서는 대중의 참여를 통해 캔 음료 제품의 점자 표기 실태를 파악하고, 음료 제조사가 이를 개선하도록 유도하는 방안을 제안한다. 캔 음료 상단에 표기된 점자를 촬영한 이미지에서 OpenCV를 통해 점자의 윤곽을 검출하고, 검출된 윤곽의 좌표를 계산하여 점자를 국문으로 번역하는 모듈을 개발한 후 서버에 이식한다. 서버와 통신하는 모바일 애플리케이션을 개발하여 소비자가 점자 이미지를 서버에 업로드하고, 점자의 인식결과를 확인할 수 있도록 한다. 점자 표기가 적절하지 않다고 판단하는 경우 해당 제품에 대한 정보를 기록하도록 하고, 제조사 별로 제보된 횟수의 순위를 제공한다. 이를 통해 소비자는 올바른 점자 표기를 제공하지 않는 제조사를 파악할 수 있으며, 제조사는 이를 의식하고 점자 표기를 개선할 수 있는 효과를 기대한다.

• Journal of Digital Convergence
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• v.15 no.7
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• pp.343-350
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• 2017

Music Braille is essential and academic materials for the blind to learn and enjoy music. In Korea, National Library for the Disabled is the public institution for the manufacture digital music braille by the request and the center of music rehabilitation the disabled also make the digital music braille on a welfare level. However, most of braille libraries in Korea do have little music braille compared to other braille books. This paper reports the current situations how braille libraries including National library for the Disabled contain braille books, music brailles and digital music brailles to find out that the blinds can be provided exact informations about music brailles and digital music brailles so they can learn music with the right materials such as music brailles. In conclusion, the construction of Database for the digital music brailles is required and necessary for the blind to have better activities of music from the welfare and artistic point of view.

• Proceedings of the KAIS Fall Conference
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• 2003.06a
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• pp.284-287
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• 2003

본 논문은 시각 장애인을 위해 양면 인쇄된 점자를 스캐너를 통해서 읽어 들인 후, 영상 내의 잡음과 같은 미세 정보를 제거하는 전처리과정을 거친다 스캔한 영상을 임계값을 이용한 클리핑으로 이진영상을 만든 후 영상의 특징을 추출한다. 추출된 특징은 점자의 앞면과 뒷면으로 분류할 수 있다. 점자 앞면의 특징이 아래반원으로 나타나며 이러한 특징을 이용한 검출필터를 만들어 점자의 앞면만을 추출해낸다. 영상을 각각 수직방향, 수평방향으로 투영시켜 점자영상 분할을 위한 거리를 계산, 자간격과 줄간격을 구해 ½되는 지점에 선을 그어 분할한다. 분할된 점자 형태소를 낱자로 인식한다.

• Proceedings of the Korea Multimedia Society Conference
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• 2000.11a
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• pp.353-356
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• 2000

시각장애자들이 음악을 듣고 음악에 대한 공부를 하기 위해서는 점자악보를 통하여서만이 가능하다. 그러나 이러한 점자악보를 만들기 위해서는 점역사를 통한 주문제작 방법 밖에는 없는 실정이다. 국내의 몇 안되는 점역사를 통해서 한곡의 점자악보를 얻기까지는 한달여의 기간과 많은 비용이 든다. 이러한 열악할 환경으로 인하여 시각장애자들이 음악을 공부하거나 전공하기에는 너무나 힘들 실정이다. 본 논문에서는 이러한 시각장애자들이 음악을 접할 수 있고 공부할 수 있도록 시간적, 비용적 측면에서 도움을 주기 위한 점자악보 생성 컴파일러에 대한 구현 내용을 기술한다. 점자악보 생성기는 기존의 컴퓨터에서 음악을 듣기위한 미디 파일을 입력으로 받아들여 점자 편집기에서 점자 변환에 사용되는 아스키 코드로 출력하여 시각장애자가 원하는 곡의 점자악보를 받는데 드는 비용과 시간을 절약할수 있도록 도와준다.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.4 no.1
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• pp.63-70
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• 2010

Research and development of Assistive Technology (AT) for blind people is primarily focused on assisting mobility and improving access to information. Some particularly useful devices for aiding access to information and communication are DAISY players used with talking books, screen readers for reading screens, video magnifiers to aid low vision, Braille displays, and Braille PDAs. These essential devices have been successfully commercialized and have assisted many visually impaired people. Assistive technology devices for visually impaired people are called sensory substitution devices, because these devices substitute tactile or auditory functions for visual functions. The tactile interfaces of sensory substitution devices such as Braille displays and Braille PDAs have a bimorph type of piezoelectric actuator that forms a Braille (pin) of the Braille cells by moving up and down. KGS Corporation of Japan has more than 80% share of the worldwide market for these Braille cell actuators. Commercializing it for the first time in the world. This paper reviews the various endeavors in Japan in the research and development of tactile displays, such as Braille displays and Braille PDAs. Furthermore, it discusses sensory substitution devices that use tactile displays, focusing especially on the rotating Braille display we have developed.

• Journal of Digital Convergence
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• v.13 no.8
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• pp.51-57
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• 2015

Digital braille music is an indispensible instrument for the blind persons to enjoy music and to proceed the more professional music education. Producing braille music requires professionals such as braille translators thereby it costs money for an individual to order braille music. Therefore, public libraries involve in producing and distributing braille music. Current status of digital braille music in Korea has been far from the fulfillment with the unmet needs of the blind people for diversity in their music preferences. This paper analyses the present condition of braille music possession in Korea National Library. Based on the analysis, policy proposals has been proposed.

• Proceedings of the Korea Multimedia Society Conference
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• 2003.05b
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• pp.754-757
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• 2003

본 논문은 시각 장애인을 위해 양면 인쇄된 점자를 디지털 카메라나 스캐너를 통해서 읽어 들인 후, 영상 내의 잡음과 같은 미세 정보를 제거하는 전처리과정을 거친다. 스캔한 영상을 이진화하기 위해 임계값을 이용한 클리핑으로 이진영상을 만든 후 영상의 특징을 추출한다. 추출된 특징을 보면 점자의 앞면과 뒷면으로 분류할 수 있다. 점자 앞면의 특징이 아래반원으로 나타나며 이러한 특징을 이용한 검출필터를 만들어 점자의 앞면만을 추출해낸다. 점자의 앞면을 추출하는 과정에서 탐색구간을 두어 한 점에 대하여 여러 화소가 검출되는 것을 막는다 영상을 각각 수직방향, 수평방향으로 투영시켜 점자영상 분할을 위한 거리를 계산, 자간격과 줄간격을 구해 1/2되는 지점에 선을 그어 분할한다. 분할된 점자 형태소를 낱자로 인식한다.

• Journal of Internet Computing and Services
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• v.9 no.5
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• pp.1-7
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• 2008

This paper explains a new design and Implementation of an efficient portable braille point system for visually Impaired person, The information systems for the visually impaired persons require efficiently designed devices, tools and accessibility to use the devices, and education support. These three conditions are the basic requirements of designing systems for the visually impaired persons, The system proposed in this paper satisfies the above three conditions. The system converts data and web documents between the braille and Hangul using an algorithm stored in a PC, and transfers the converted data to portable devices. And the portable braille device presents the transferred data in an electromagnetic way.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.16 no.1
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• pp.113-132
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• 2005

The aim of this study is to expand and deepen our knowledge of Braille libraries in Japan. This study begins with a different viewpoint than previous ones. It does not view Braille libraries solely from the institutions themselves but it locates them within the historical context of Japanese society and both Braille and public libraries. It finds that although Braille and public libraries began with similar purposes, they drastically diverged after 1949 when the former’s welfare center-like function for the blind became more apparent. But by the 1970s, Braille libraries shifted in the direction of its original library function at the impetus of the Blind Reading Rights Movement.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.13 no.1
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• pp.215-230
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• 2002

A braille library undoubtedly changes with a changing information environment. However "changing information service" as a topic couldn't be found among previous researches. That's the reason it felt necessary in this paper to analyze the way service in a braille library changes according to a changing environment. as well as to make clear the meaning and the role a braille library has for blind people. As a first step, a questionnaire aimed at Korean braille libraries was carried out in order to understand changes of library service. Results showed that most changes in braille library service were due to the influence of internet, directly or indirectly. In this connection. the way braille libraries made us of this new tool was analyzed as follows. Firstly braille libraries were found to help a better circulation of information from internet towards blind people. It appeared secondly that internet was also used in order to improve already existing services as well as new services. Thirdly libraries were shown to have developed new services related to internet although these services weren't initially library ones. These new aspects of library service constitute by themselves a proof of the importance of braille libraries, although blind people might in some cases obtain the wished piece of information without them. Therefore braille libraries prove to be remained necessarily even if information environment changes.t changes.