A novel obstacle detection method based on deformable grid for the visually impaired

Mun Cheon Kang, Sung Ho Chae, Jee Young Sun, Jin Woo Yoo, Sung-Jea Ko

Research output: Contribution to journalArticle

17 Citations (Scopus)

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.

Original languageEnglish
Article number7298298
Pages (from-to)376-383
Number of pages8
JournalIEEE Transactions on Consumer Electronics
Volume61
Issue number3
DOIs
Publication statusPublished - 2015 Aug 1

Fingerprint

Processing

Keywords

  • collision detection
  • Electronic Travel AIDS (ETA)
  • Obstacle detection
  • Time to Contact (TTC)
  • visually impaired

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Media Technology

Cite this

A novel obstacle detection method based on deformable grid for the visually impaired. / Kang, Mun Cheon; Chae, Sung Ho; Sun, Jee Young; Yoo, Jin Woo; Ko, Sung-Jea.

In: IEEE Transactions on Consumer Electronics, Vol. 61, No. 3, 7298298, 01.08.2015, p. 376-383.

Research output: Contribution to journalArticle

Kang, Mun Cheon ; Chae, Sung Ho ; Sun, Jee Young ; Yoo, Jin Woo ; Ko, Sung-Jea. / A novel obstacle detection method based on deformable grid for the visually impaired. In: IEEE Transactions on Consumer Electronics. 2015 ; Vol. 61, No. 3. pp. 376-383.
@article{69b9ee50091642dbaa5d4e44b7ea3b91,
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.",
keywords = "collision detection, Electronic Travel AIDS (ETA), Obstacle detection, Time to Contact (TTC), visually impaired",
author = "Kang, {Mun Cheon} and Chae, {Sung Ho} and Sun, {Jee Young} and Yoo, {Jin Woo} and Sung-Jea Ko",
year = "2015",
month = "8",
day = "1",
doi = "10.1109/TCE.2015.7298298",
language = "English",
volume = "61",
pages = "376--383",
journal = "IEEE Transactions on Consumer Electronics",
issn = "0098-3063",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "3",

}

TY - JOUR

T1 - A novel obstacle detection method based on deformable grid for the visually impaired

AU - Kang, Mun Cheon

AU - Chae, Sung Ho

AU - Sun, Jee Young

AU - Yoo, Jin Woo

AU - Ko, Sung-Jea

PY - 2015/8/1

Y1 - 2015/8/1

N2 - 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.

AB - 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.

KW - collision detection

KW - Electronic Travel AIDS (ETA)

KW - Obstacle detection

KW - Time to Contact (TTC)

KW - visually impaired

UR - http://www.scopus.com/inward/record.url?scp=84945122595&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84945122595&partnerID=8YFLogxK

U2 - 10.1109/TCE.2015.7298298

DO - 10.1109/TCE.2015.7298298

M3 - Article

AN - SCOPUS:84945122595

VL - 61

SP - 376

EP - 383

JO - IEEE Transactions on Consumer Electronics

JF - IEEE Transactions on Consumer Electronics

SN - 0098-3063

IS - 3

M1 - 7298298

ER -