The Introduction of Tele-Support System for Deaf-Blind People Using Body-Braille and a Mobile Phone

Ohtsuka, Satoshi; Sssaki, N.; Hasegawa, Shoichi; Harakawa, Tetsumi

doi:10.1109/ccnc08.2007.300

Cited by 7 publications

(4 citation statements)

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“…Analisando os países de publicação (figura 2), o Japão liderou o ranking de publicações encontradas na busca na base Scopus. Dos dezenove artigos selecionados do Japão, nove artigos foram publicados pelo mesmo grupo de pesquisadores (Ohtsuka, et al), de 2008 a 2015, (Ohtsuka et al, 2015;Ohtsuka et al, 2014;Ohtsuka et al, 2012;Ohtsuka et al, 2010;Ohtsuka et al, 2008). Assim pode-se perceber a evolução gradual da pesquisa.…”

Section: Resultsunclassified

Tecnologias e métodos que auxiliam na comunicação de surdocegos: uma revisão bibliográfica

Amorim

Barbosa

Ferreira

et al. 2018

iSys

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Este artigo descreve a primeira análise de uma pesquisa bibliográfica que explora as abordagens dos trabalhos realizados na temática de deficiências múltiplas focado em pessoas com surdocegueira. Com a finalidade de identificar as tecnologias, as linguagens e os tipos de dispositivos utilizados na comunicação dos surdocegos e, que de alguma forma, auxiliem a sua educação. Como resultado inicial, identificou-se como principal linguagem para estabelecer a comunicação, o braile e suas derivações: bodybraile, fingerbraile, e uma predominância de recursos para a comunicação bidirecional na interação de indivíduos surdocegos. Foram poucos trabalhos que exploraram métodos ou recursos para aprendizagem.

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Section: Resultsunclassified

Tecnologias e métodos que auxiliam na comunicação de surdocegos: uma revisão bibliográfica

Amorim

Barbosa

Ferreira

et al. 2018

iSys

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“…Typically, 100-300 separate cells per minute could be achieved for experienced users [31]. Various Braille-based devices reported for the blind and deafblind people, including Braille displays [28], [29], [32], [33], and body-braille devices [19] are compared in Table I. Considering the difficulty to learn and practice these conventional Braille methods [34], [35], finger Braille communication method, using the index, middle and ring fingers of both hands representing the six dots of Braille, This work is licensed under a Creative Commons Attribution 4.0 License.…”

Section: Table I Existing Assistive Tactile Interfaces Using Braillementioning

confidence: 99%

Wearable Assistive Tactile Communication Interface Based on Integrated Touch Sensors and Actuators

Ozioko

Karipoth

Hersh

et al. 2020

IEEE Trans. Neural Syst. Rehabil. Eng.

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This paper presents the design and fabrication of a wearable tactile communication interface with vibrotactile feedback for assistive communication. The interface is based on finger Braille, which is a simple and efficient tactile communication method used by deafblind people. It consists of a flexible piezoresistive sensor and a vibrotactile actuator integrated together and positioned at the index, middle and ring fingers of both hands to represent the six dots of Braille. The sensors were made using flexible piezoresistive material whereas the actuator utilizes electromagnetic principle by means of a flexible coil and a tiny NdFeB permanent magnet. Both were integrated to realize a Bluetooth-enabled tactile communication glove which enables deafblind people to communicate using Braille codes. The evaluation with 20 end-users (10 deafblind and 10 sighted and hearing person) of the tactile interface under standardized conditions demonstrated that users can feel and distinguish the vibration at frequencies ranging from 10Hz to 200Hz which is within the perceivable frequency range for the FA-II receptors. The results show that it took non-experts in Braille within 25s and 55s to send and receive words like "BEST" and "JOURNAL", with an accuracy of ∼75% and 68% respectively.

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“…In order to perform vibrotactile expression of Braille information, domestic and foreign researchers have developed various tactile expression devices [11,12], which are briefly categorized here as the direct-contact and body-worn types. Body-worn devices belong to the "Body-Braille" system [13,14], which can be placed on the surface of any part of the body, and the user is able to passively access Braille information. This means that the user can keep their hands free while understanding the Braille information, even if the device is a glove, and performing other things with their hands does not affect the acquisition of Braille information.…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of a Semantic Information Expression Device Based on Vibrotactile Coding

Shao,

Mei,

et al. 2023

Applied Sciences

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In recent years, research on new technologies for expressing and exchanging information through tactile vibration has been the focus of researches. In this paper, by choosing a suitable coding scheme and a vibrating motor arrangement, we designed a device to express semantic information through vibrotactile. Three types of experiments were designed to test the usability of the encoding scheme and the device. Firstly, the vibration intensity was experimented when designing the encoding scheme, and the results showed that the encoding scheme was better with Braille units of 0.2 and 0.3 vibration intensities. In addition, the learning experiment and sentence recognition accuracy experiment were carried out to verify the usability of the device. The learning experiment results show that subjects were able to memorize Braille characters with an accuracy more than 90%, and to recognize a Chinese character (consisting of two Braille cells) with an average of 90.8% accuracy. The sentence recognition accuracy test experiment results show that the average recognition rate of the three poems used for the test was 93.33%. The device can be used for semantic information expression and touch-reading of Braille, and it can realize the reading experience of paper Braille.

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The Introduction of Tele-Support System for Deaf-Blind People Using Body-Braille and a Mobile Phone

Cited by 7 publications

References 0 publications

Tecnologias e métodos que auxiliam na comunicação de surdocegos: uma revisão bibliográfica

Tecnologias e métodos que auxiliam na comunicação de surdocegos: uma revisão bibliográfica

Wearable Assistive Tactile Communication Interface Based on Integrated Touch Sensors and Actuators

Design and Implementation of a Semantic Information Expression Device Based on Vibrotactile Coding

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