scholarly journals Smart Assistive Device for Visually Impaired People

2015 ◽  
Vol V4 (03) ◽  
Author(s):  
Syed Tehzeeb Alam ◽  
Sonal Shrivastava ◽  
Syed Tanzim Alam ◽  
R. Sasikala ◽  
Keyword(s):  
Visually Impaired ◽  
Assistive Device ◽  
Visually Impaired People ◽  
Impaired People

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 Mobility Assistive Device for the Visually Impaired

2020 ◽  
Vol 6 (12) ◽  
pp. 129-133
Author(s):  
Puru Malhotra and Vinay Kumar Saini
Keyword(s):  
Real Time ◽  
Structural Design ◽  
Visually Impaired ◽  
Assistive Device ◽  
Raspberry Pi ◽  
Traditional Use ◽  
Smart Glasses ◽  
Visually Impaired People ◽  
Impaired People ◽  
Walking Stick

he paper is aimed at the design of a mobility assistive device to help the visually impaired. The traditional use of a walking stick proposes its own drawbacks and limitations. Our research is motivated by the inability of the visually impaired people to ambulate and we have made an attempt to restore their independence and reduce the trouble of carrying a stick around. We offer a hands-free wearable glass which finds it utility in real-time navigation. The design of the smart glasses includes the integration of various sensors with raspberry pi. The paper presents a detailed account of the various components and the structural design of the glasses. The novelty of our work lies in providing a complete pipeline for analysis of surroundings in real-time and hence a better solution for navigating during the day to day activities using audio instructions as output.

scholarly journals Intelligent Assistive System for Visually Disabled Persons

2019 ◽  
Vol 8 (4) ◽  
pp. 1436-1440
Keyword(s):  
Optical Character Recognition ◽  
Visually Impaired ◽  
Disabled Persons ◽  
Obstacle Detection ◽  
Outdoor Environment ◽  
Assistive Device ◽  
Raspberry Pi ◽  
New Device ◽  
Visually Impaired People ◽  
Impaired People

There is increasin demand for smart widgets which make people more comfortable. Though many research works have done on current existing devices/systems for visually impaired people are not providing facilities them enough. The imperceptible people read Braille scripted books only, so here developing a new device that will assist the visually impaired people and also providing desired language reading facility. This smart assistive device will help visually impaired people gain increased independence and freedom in society. This device has an obstacle detection sensor to intimate the obstacles to the visually impaired person and a camera connected to Raspberry pi to convert image to text using Optical Character Recognition (OCR). The read data is converted to speech using text to speech synthesizer. This will useful for visually impaired people for surviving in outdoor environment as well as reading books which are in normal script. The read data can be stored in database for further reading and it can be retrieve by giving a command.

scholarly journals Survey on Optimization of Walking Assistive Device for Evacuation and Realization of Fire for Visually Impaired

2021 ◽  
Vol 21 (2) ◽  
pp. 91-96
Author(s):  
Kyungsuk Cho ◽  
Donggu Seo ◽  
Sangheon Donggu ◽  
Jongho Lee
Keyword(s):  
Information Sharing ◽  
Visually Impaired ◽  
Assistive Device ◽  
Web Survey ◽  
Safety Education ◽  
Visually Impaired People ◽  
Depth Interview ◽  
Impaired People ◽  
And Training ◽  
Walking Aid

To develop a walking aid tool that can help the visually impaired to evacuate in the event of fire, a questionnaire was devised and 100 visually impaired people were surveyed. The questionnaire was divided into four categories: fire safety education and training, self-evacuation in the event of fire, direction checking method, and applicability of an auxiliary evacuation tool. The questionnaire was conducted through a web survey and was followed by an in-depth interview with the visually impaired. The questionnaire results indicated that the respondents prefer wristband-type and conventional cane-type aid tools, which are convenient to wear and render both hands free, as evacuation walking aid tools as well as voice and touch as information sharing methods.

Assistive Device for Locomotion of Visually Impaired and Physically Challenged People

2016 ◽  
Vol 852 ◽  
pp. 806-811 ◽  
Author(s):  
Sathish ◽  
Rajagopalan Nithya ◽  
N. Roshini ◽  
S. Nivethithaa
Keyword(s):  
Visually Impaired ◽  
Control Unit ◽  
Assistive Device ◽  
Voice Command ◽  
Visually Impaired People ◽  
Second Mode ◽  
Impaired People ◽  
Mobility Aid ◽  
Physically Challenged ◽  
The Voice

Dependency for mobility of physically challenged and visually impaired people is a major issue to be focused. To bring a safe and independent movement, we have designed and developed a mobility aid to assist them in locomotion. The device is designed using CATIA software. Our ideology is to control the navigation of the device by two modes. In the first mode, the navigation of the unit is governed by the voice command given by the user namely right, left, forward, reverse and stop. In the second mode, the device renders a reliable movement in the known environment which is achieved by feeding in a pre-defined layout. The navigation modes are regulated by a control unit.

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.

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