• Journal of the Korea Convergence Society
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• v.10 no.8
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• pp.265-276
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• 2019

The purpose of this study was to explore the possibility of creating barrier-free exhibition-appreciation environment based on the visually impaired person's perspectives. Participants were selected by the purposeful sampling method. Researchers conducted a couple of in-depth interviews with four visually impaired persons. Yin's case study method was employed to analyze qualitative information. The analysis revealed nine sub-themes in two sections: three from 'accessibility within the exhibition room'; and six from 'demand for immersive exhibition environment.' Based on the results, following suggestions were presented: First, we need to provide quality information appropriate for artworks-appreciation; secondly, to ensure the visually impaired people to appreciate the culture and arts without any barrier, we need to extend certification of barrier-free living environment to exhibition-appreciation area. Finally, to facilitate these two tasks we need to encourage the convergence research among science and technology, humanities and society, and culture and arts.

• The Journal of the Korea Contents Association
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• v.16 no.8
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• pp.202-208
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• 2016

The scope of activities of the visually impaired is increasing. But they are not easy to visit the destination safely because the building was complicated and larger than ever. There is a guide system for visually impaired such as GPS and Audio alerts, Braille guide block, Acoustic signaller, etc. But they are not suitable for indoor because most of them are the outdoor guide system. Therefore, in this paper, I propose a system that provides guidance information to the visually impaired using Voice Technology, TTS (Text to Speech) and Haptic Technology, Beacon based on the wireless sensor networks. It informed the visually impaired of guidance information about destination such as distance, height, and obstacle to the destination using the generalized smart phone. The user could be received guide info about searches for the optimal route to the destination using the TTS technology and Haptic technology in test result of the proposed system.

• Journal of Korea Society of Industrial Information Systems
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• v.23 no.6
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• pp.1-8
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• 2018

In this paper, we implement the signboard voice guidance service for visually impaired person using virtual beacon. The new location to provide a location-based service can be added easily by using virtual beacons, which are locating by Wi-fi, GPS, and so on, instead of physical beacons, which are locating by physical devices. We provide the voice service for guiding information of the captured signboard for the visually impaired when he arrived at the location registered through the virtual beacon.

• Journal of Korea Society of Industrial Information Systems
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• v.21 no.4
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• pp.13-20
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• 2016

It is possible to implement an optical character recognition system using a high-resolution camera mounted on smart phones in the modern society. Further, characters extracted from the implemented application is possible to provide the voice service for the visually impaired person by using TTS. But, it is difficult for the visually impaired person to properly shoot the objects that character information are included, because it is very hard to accurately understand the current state of the object. In this paper, we propose a method of inducing an appropriate shooting for the visually impaired persons by using a smartphone gyro sensor. As a result of simulation using the implemented program, we were able to see that it is possible to recognize the more character from the same object using the proposed method.

• IEMEK Journal of Embedded Systems and Applications
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• v.12 no.1
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• pp.35-41
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• 2017

We propose a face recognition and notification system that can transform visual face information into tactile signals in order to help visually impaired people. The proposed system consists of a glasses type camera, a mobile computer and an electronic cane. The glasses type camera captures the frontal view of the user, and sends this image to mobile computer. The mobile computer starts to search for human's face in the image when obstacles are detected by ultrasonic sensors. In a case that human's face is detected, the mobile computer identifies detected face. At this time, Adaboost and compressive sensing are used as a detector and a classifier, respectively. After the identification procedures of the detected face, the identified face information is sent to controller attached to a cane using a Bluetooth communication. The controller generates motor control signals using Pulse Width Modulation (PWM) according to the recognized face labels. The vibration motor generates vibration patterns to inform the visually impaired person of the face recognition result. The experimental results of face recognition and notification system show that proposed system is helpful for visually impaired people by providing person identification results in front of him/her.

• Journal of The Korea Institute of Healthcare Architecture
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• v.26 no.2
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• pp.19-30
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• 2020

Purpose: The ratio of the visually impaired is gradually increasing due to various causes such as natural aging, accidents, and environmental changes. Therefore, this study has two folds. Firstly, it aims to analyze the current satisfaction level with information facilities for the visually impaired. Secondly, it aims to examine the factors affecting the satisfaction with indoor information facilities. Through this study, it helps to identify problems of information facilities for the visually impaired and it works as a practical data for further improvements. Methods: For 50 visually impaired people, a telephone survey was conducted on the satisfaction with the braille blocks, braille signboards, braille information boards with tactile map, audio guide devices, and safety egress devices. Microsoft Excel and SPSS 26.0 were used for the analysis. Results: It was confirmed that the overall satisfaction with the indoor information facilities was very low. The more the visually impaired people recognized the installation standards, and the better the maintenance was, the higher the satisfaction. In the case of braille blocks and braille signboards, the effect of information transfer on satisfaction was relatively high. In the case of audio guide device and safety egress device, the standard suitability influenced satisfaction. Implications: The low level of satisfaction with the overall information facilities can impede visually impaired people from receiving practical help through the information facilities. Factors influencing the satisfaction level of each facility were identified, which makes it possible to prepare effective improvement measures.

• 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.

• The Journal of the Korea Contents Association
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• v.15 no.1
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• pp.24-30
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• 2015

As the complexity of urban growth out of people with disabilities are subject to many restrictions. In particular, visually impaired people are not allowed to perceive objects as well as objects around the environment, it suffers from a number of outdoor activities to environmental challenges. But the outdoors environment of the current domestic reality is lacking a lot of facilities to assist the activities of people with disabilities, including the visually impaired. In this paper, we propose a navigation system to help the visually impaired in outdoor activities. The proposed system was applied to test the Jeungpyeong campus of Korea National University of Transportation for the exam.

• Journal of Korean Library and Information Science Society
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• v.48 no.1
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• pp.161-189
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• 2017

The purpose of this study is to describe the experience of visually impaired academic researchers' use of scholarly contents and to explore intrinsic nature of the experience. In-depth interview was conducted with a total number of twelve visually impaired academic researchers and the data were analyzed using Colaizzi's phenomenological research method. A total of 107 significant statements were extracted, divided into 44 themes and 12 theme clusters. The statements were then classified into four categories. The 'scholarly contents acquisition and use' category has to do with difficulties that these experience when negotiating with internet sites with poor web accessibility and full-text availability. The 'changes in perception and emotions' category deals with transitions in perception and mood experienced by visually impaired academic researchers' over time. The 'relationships with support personnel' category includes issues related with the difficulty of securing support person, support person's inadequate level of competence, and establishing/sustaining personal relationships. Finally, the 'improvement requirements' category includes issues that these researchers want resolved with regard to contents acquisition and use.

• The Journal of the Korea institute of electronic communication sciences
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• v.16 no.6
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• pp.1329-1338
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• 2021

There are rarely effective methods to help visually impaired people when they want to know the expiration date of products excepted to only Braille. In this study, we developed an expiration date notification system based on YOLO and OCR for visually impaired people. The handicapped people can automatically know the expiration date of a specific product by using our system without the help of a caregiver, fast and accurately. The proposed system is worked by four different steps: (1) identification of a target product by scanning its barcode; (2) segmentation of an image area with the expiration date using YOLO; (3) classification of the expiration date by OCR: (4) notification of the expiration date by TTS. Our system showed an average classification accuracy of about 86.00% when blindfolded subjects used the proposed system in real-time. This result validates that the proposed system can be potentially used for visually impaired people.