Construction and Analysis of a Novel Wearable Assistive Device for a Visually Impaired Person

Table 1

Comparison of range-based assistive device with the device presented in the paper.

Author	[14]	[15]	[16]	[17]	[25]	[26]	Our device
Range	Small	Medium	Medium	Medium	Medium	Large	Medium
Cost	High	Low	High	High	Low	High	Low
Weight	Heavy	Light	Heavy	Heavy	Light	Heavy	Light
Obstacle detection	Front	Front	Front	Front	Front	Front	Front-up-down
Stair detection	Yes	No	No	No	No	No	Yes
Instructions	No	No	No	No	No	No	Yes