Title
A novel obstacle detection method based on deformable grid for the visually impaired
Abstract
To assist visually impaired people, a variety of obstacle detection (OD) methods with the monocular vision have been developed. Most conventional OD methods detect the obstacle by using the variation of the motion vector or the object size between two consecutive image frames. However, the OD performance using the short-term variation is significantly affected by the tracking error, which leads to inaccurate OD results. To cope with this problem, this paper presents a novel OD method based on a new structure, called Deformable Grid (DG). The DG is initially a regular gridshaped, but it can be deformed gradually depending on the motion of the object in the scene. The proposed method detects the object at risk of collision based on the degree of the deformation of the DG. Experimental results demonstrate that the proposed OD method outperforms the conventional ones in terms of processing time as well as accuracy.
Year
DOI
Venue
2015
10.1109/TCE.2015.7298298
IEEE Transactions on Consumer Electronics
Keywords
Field
DocType
Cameras,Image edge detection,Iron,Shape,Robustness,Sensors,Accuracy
Monocular vision,Obstacle,Computer vision,Collision detection,Computer science,Collision,Robustness (computer science),Artificial intelligence,Grid,Tracking error,Motion vector
Journal
Volume
Issue
ISSN
61
3
0098-3063
Citations 
PageRank 
References 
8
0.51
19
Authors
5
Name
Order
Citations
PageRank
muncheon kang1266.79
sungho chae2143.75
jeeyoung sun3163.45
JinWoo Yoo480.51
Sung-Jea Ko51051114.34