International Journal of Scientific & Technology Research

Home About Us Scope Editorial Board Blog/Latest News Contact Us
10th percentile
Powered by  Scopus
Scopus coverage:
Nov 2018 to May 2020


IJSTR >> Volume 8 - Issue 10, October 2019 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

An Obstacle Detection And Distance Sensing Algorithm For Visually Impaired Persons

[Full Text]



T.Suba Nachiar, Dr.M.Arunachalam, P.R.Hemalatha, Dr.R.Aghila, R.T.Subhalakshmi



Obstacle detection, distance sensing, ultrasonic sensor, distance calculation, speech output



Object detection and distance sensing is a major challenge for visually impaired persons. Earlier navigation systems are expensive and time consuming for usage in day-to-day life. Our proposed system uses Ultrasonic sensors which work on the principle of reflected sound waves. Whenever any obstacle is detected in ultrasonic sensor interfaced in the Specs of a person, camera capture the image. The image captured is compared with the images against a convolution neural network, which will be used to find the obstacles. This work aims at designing a cost-effective and more flexible navigation system for the visually impaired persons.



[1] J. Gubbi, R. Buyya, S. Marusic, M. Palaniswami, "Internet of Things (IoT): A vision architectural elements and future directions", Future Gener. Comput. Syst., Vol. 29, no. 7, 2013, pp. 1645-1660.
[2] Aberer, K., Hauswirth, M., & Salehi, A. Middleware support for the “Internet of Things”. Proceedings of the 5th GI/ITG KuVS Fachgespräch Drahtlose Sensornetze. Germany,2006.
[3] K.S.Manikanta, T. S. S. Phani, A .Pravin,“Implementation and Design of Smart Blind Stick for Obstacle Detection and Navigation System”, International Journal of Engineering Science and Computing, 2018.
[4] Daniyal, Daniyal & Ahmed, Faheem & Ahmed, Habib & Zakir Ahmed Shaikh, Engr & Shamshad, Aamir. “Smart Obstacle Detector for Blind Person”, Journal of Biomedical Engineering and Medical Imaging, 2014.
[5] Strothotte, T., Petrie, H., Johnson V. and Reichert L., “MoBIC: user needs and preliminary design for a mobility aid for blind and elderly travelers”,2013.
[6] B. Thomas, V. Demczuk, W. Piekarski, D. Hepworth, and B. Gunther, “Wearable Computer System with Augmented Reality to Support Terrestrial Navigation,” Proc. 2nd Int. Symp. On Wearable Computers, 1998, pp.168-171.
[7] Monther M. Al-Shehabi, Mustahsan Mir, Abdullah M. Ali, and Ahmed M. Ali “An Obstacle Detection and Guidance System for Mobility of Visually Impaired in Unfamiliar Indoor Environments “, International Journal of Computer and Electrical Engineering, Vol. 6, No. 4, 2014.