scholarly journals An Intuitive Mobility Aid for Visually Impaired People Based on Stereo Vision

Author(s):  
Tobias Schwarze ◽  
Martin Lauer ◽  
Manuel Schwaab ◽  
Michailas Romanovas ◽  
Sandra Bohm ◽  
...  

This paper introduces a novel electronic mobility aid for visually impaired users that helps them navigate in any given environment and avoid knee level to head height obstacles. The mobility aid uses stereo imaging system to capture the images of the area in front of the user. The processing unit generates a disparity map and a segmentation algorithm extracts information about the relative distance of obstacles from the user. This information is relayed to the user in simplified vibration pattern feedback to inform the user of the path to be taken to avoid collision with the obstacle. Special hardware was designed to make the system portable and cost effective.The mobility aid was validated on 55 visually impaired users. The subjects walked in a controlled test environment with a varying number of obstacles placed in their path. The accuracy of the device to help the user avoid obstacles and the average speed of walking of the user were determined. The results obtained were satisfactory and the device has the potential for use in standalone mode as well as in conjunction with a white cane and thus help visually impaired people counter mobility problems.


2016 ◽  
Vol 852 ◽  
pp. 806-811 ◽  
Author(s):  
Sathish ◽  
Rajagopalan Nithya ◽  
N. Roshini ◽  
S. Nivethithaa

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.


2015 ◽  
Vol 30 (1) ◽  
pp. 29-36 ◽  
Author(s):  
Tobias Schwarze ◽  
Martin Lauer ◽  
Manuel Schwaab ◽  
Michailas Romanovas ◽  
Sandra Böhm ◽  
...  

CICTP 2020 ◽  
2020 ◽  
Author(s):  
Ammar Muhammad ◽  
Qizhou Hu ◽  
Muhammad Tayyab ◽  
Yikai Wu ◽  
Muhammad Ahtsham

Author(s):  
Olga Novikova ◽  

The special library acts as the cultural and educational center for visually impaired people, and as the center for continuing education. The multifunctional performance of the library is substantiated. The joint projects accomplished in cooperation with theatres and museums and aimed at integrating the visually impaired people into the society are described. Advanced training projects for the library professionals accomplished in 2018 are discussed.


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