scholarly journals Low cost real time braille keypad for communication

2018 ◽  
Vol 7 (2.8) ◽  
pp. 77
Author(s):  
Lakshmi Prabha.P ◽  
Sanjanamenon EJ ◽  
Christina Samuel ◽  
Ganga Ramesh
Keyword(s):  
Mobile Phones ◽  
Visually Impaired ◽  
Educational Software ◽  
Low Cost ◽  
Assistive Device ◽  
Normal Person ◽  
Text To Speech ◽  
Visually Impaired People ◽  
Impaired People ◽  
Communication Methods

Visually impaired people find it challenging to use devices such as computers, and other digital/educational software like every normal person does in this technology driven world. Due to their inability to gainaccess to basic and vital information they sometimes feel excluded from the society and also limit their knowledge. Several attempts have beenmade in the recent years toimprove their communication methods such as tactile sign language, Braille glove, and Audioacces devices so on. This paper suggests an innovative assistive device, a Braille keypad, for the viually impaired that would help them use computers just like a normal person. The Braille keypad implements the Braille cells as 6 switches that can be pressed simultaneously based on the actual Braille combination in order to type a particular letter and words. The corresponding letters/words are displayed as well as can be heard by the user. A text to speech algorithm is implemented using puTTY software which would help the user confirm what he/she has typed is right. In this way it enables them to interact and communicate as well as use computers and mobile phones much like a normal person.

scholarly journals A Hands-Free Obstacle Detection and Avoidance System

2015 ◽  
Vol 5 (3) ◽  
pp. 801-804
Author(s):  
M. Abdul-Niby ◽  
M. Alameen ◽  
O. Irscheid ◽  
M. Baidoun ◽  
H. Mourtada
Keyword(s):  
Obstacle Avoidance ◽  
Visually Impaired ◽  
Low Cost ◽  
Cost Effective ◽  
Obstacle Detection ◽  
Text To Speech ◽  
Voice Signal ◽  
Visually Impaired People ◽  
Impaired People ◽  
The Voice

In this paper, we present a low cost hands-free detection and avoidance system designed to provide mobility assistance for visually impaired people. An ultrasonic sensor is attached to the jacket of the user and detects the obstacles in front. The information obtained is transferred to the user through audio messages and also by a vibration. The range of the detection is user-defined. A text-to-speech module is employed for the voice signal. The proposed obstacle avoidance device is cost effective, easy to use and easily upgraded.

scholarly journals An Innovative Approach to Build a Low Cost Braille Embosser

2020 ◽  
pp. 823-826
Author(s):  
Vaibhavi Naik ◽  
Amey Joshi ◽  
Ritesh Gupta ◽  
Kaustubha Pavaskar ◽  
Prajakta Tanksali
Keyword(s):  
Visually Impaired ◽  
Low Cost ◽  
Normal Person ◽  
Text File ◽  
Image Processing Techniques ◽  
Visually Impaired People ◽  
Impaired People ◽  
Processing Techniques ◽  
Reading Interest ◽  
Maximum Content

Visually impaired people have to deal with various challenges since they cannot see anything with their eyes and even some visually impaired people are not able to read the content of their interest so they fail to gain knowledge from reading as much as a normal person can obtain. Visually impaired people have some content available in the braille format that they can read but not all content of their reading interest is available in the braille format. Therefore, braille embosser will help to make available the maximum content of their reading interest in the braille format at an affordable cost. In this project, the user will have to upload an image of blinds reading interest, which is to be converted in the braille format. Initially, we will extract the text from a text image and save the text file using different image processing techniques. Then each character stored in the text file will be converted to the respective braille format using ASCII values and then converted text will be embossed using the braille embosser, which will make the content available for the blind community.

Low cost audio based intelligent guidance system for visually impaired people

2020 ◽  
Vol 24 (03) ◽  
pp. 515-520
Author(s):  
Vattumilli Komal Venugopal ◽  
Alampally Naveen ◽  
Rajkumar R ◽  
Govinda K ◽  
Jolly Masih
Keyword(s):  
Visually Impaired ◽  
Low Cost ◽  
Guidance System ◽  
Visually Impaired People ◽  
Impaired People

scholarly journals An Enhanced Mobile Phone Dialler Application for Blind and Visually Impaired People

2013 ◽  
Vol 2 (4) ◽  
pp. 270 ◽  
Author(s):  
Rana Mohammad Yousef ◽  
Omar Adwan ◽  
Murad Abu-Leil
Keyword(s):  
Mobile Phone ◽  
Mobile Phones ◽  
Visually Impaired ◽  
Voice Recognition ◽  
Blind And Visually Impaired ◽  
Phone Calls ◽  
Visually Impaired People ◽  
Impaired People ◽  
Windows Phone ◽  
Innovative Concept

This paper presents the development of a new mobile phone dialler application which is designed to help blind and visually impaired people make phone calls. The new mobile phone dialler application is developed as a windows phone application to facilitate entering information to touch screen mobile phones by blind people. This application is advantageous through its innovative concept, its simplicity and its availability at an affordable cost. Feedback from users showed that this new application is easy to use and solves many problems of voice recognition applications such as inaccuracy, slowness and interpretation of unusual voices. In addition, this application has increased the users ability to dial phone numbers more independently and less stressfully.

scholarly journals Wearable Travel Aid for Environment Perception and Navigation of Visually Impaired People

Electronics ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 697 ◽  
Author(s):  
Jinqiang Bai ◽  
Zhaoxiang Liu ◽  
Yimin Lin ◽  
Ye Li ◽  
Shiguo Lian ◽  
...  
Keyword(s):  
Visually Impaired ◽  
Social Inclusion ◽  
Speech Synthesis ◽  
Semantic Information ◽  
Assistive Device ◽  
Measurement Unit ◽  
Human Machine Interaction ◽  
Visually Impaired People ◽  
Impaired People ◽  
Indoor And Outdoor

Assistive devices for visually impaired people (VIP) which support daily traveling and improve social inclusion are developing fast. Most of them try to solve the problem of navigation or obstacle avoidance, and other works focus on helping VIP to recognize their surrounding objects. However, very few of them couple both capabilities (i.e., navigation and recognition). Aiming at the above needs, this paper presents a wearable assistive device that allows VIP to (i) navigate safely and quickly in unfamiliar environment, and (ii) to recognize the objects in both indoor and outdoor environments. The device consists of a consumer Red, Green, Blue and Depth (RGB-D) camera and an Inertial Measurement Unit (IMU), which are mounted on a pair of eyeglasses, and a smartphone. The device leverages the ground height continuity among adjacent image frames to segment the ground accurately and rapidly, and then search the moving direction according to the ground. A lightweight Convolutional Neural Network (CNN)-based object recognition system is developed and deployed on the smartphone to increase the perception ability of VIP and promote the navigation system. It can provide the semantic information of surroundings, such as the categories, locations, and orientations of objects. Human–machine interaction is performed through audio module (a beeping sound for obstacle alert, speech recognition for understanding the user commands, and speech synthesis for expressing semantic information of surroundings). We evaluated the performance of the proposed system through many experiments conducted in both indoor and outdoor scenarios, demonstrating the efficiency and safety of the proposed assistive system.

scholarly journals Development of a low-cost senor based aid for visually impaired people

2016 ◽  
Vol 2 (1) ◽  
pp. 727-730
Author(s):  
Nora Loepthien ◽  
Tanja Jehnichen ◽  
Josephine Hauser ◽  
Benjamin Schullcke ◽  
Knut Möller
Keyword(s):  
Learning Process ◽  
Visually Impaired ◽  
Low Cost ◽  
Tactile Feedback ◽  
Economic Aspects ◽  
Visually Impaired People ◽  
Impaired People ◽  
The Subject ◽  
Pass Through

AbstractThe aim of the project is the development of an aid for blind or visually impaired people, considering economic aspects as well as easy adaptability to various daily situations. Distance sensors were attached to a walking frame (rollator) to detect the distance to obstacles. The information from the sensors is transmitted to the user via tactile feedback. This is realized with a number of vibration motors which were located at the upper belly area of the subject. To test the functionality of the aid to the blind, a testing track with obstacles has been passed through by a number of volunteers. While passing the track five times the needed time to pass through, as well as the number of collisions, were noticed. The results showed a decline in the average time needed to pass though the testing track. This indicates a learning process of the operator to interpret the signals given by the tactile feedback.

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