NDLI: Efficient vanishing point detection method in unstructured road environments based on dark channel prior

Content Provider	IET Digital Library
Author	Ding, Weili Li, Yong Liu, Honghai
Abstract	Vanishing point detection is a key technique in the fields such as road detection, camera calibration and visual navigation. This study presents a new vanishing point detection method, which delivers efficiency by using a dark channel prior-based segmentation method and an adaptive straight lines search mechanism in the road region. First, the dark channel prior information is used to segment the image into a series of regions. Then the straight lines are extracted from the region contours, and the straight lines in the road region are estimated by a vertical envelope and a perspective quadrilateral constraint. The vertical envelope roughly divides the whole image into sky region, vertical region and road region. The perspective quadrilateral constraint, as the authors defined herein, eliminates the vertical lines interference inside the road region to extract the approximate straight lines in the road region. Finally, the vanishing point is estimated by the meanshift clustering method, which are computed based on the proposed grouping strategies and the intersection principles. Experiments have been conducted with a large number of road images under different environmental conditions, and the results demonstrate that the authors’ proposed algorithm can estimate vanishing point accurately and efficiently in unstructured road scenes.
Starting Page	852
Ending Page	860
Page Count	9
ISSN	17519632
Volume Number	10
e-ISSN	17519640
Issue Number	Issue 8, Dec (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-cvi/10/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-cvi.2015.0390
Journal	IET Computer Vision
Publisher Date	2016-05-23
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Straight Line Search Mechanism Computer Vision And Image Processing Technique Dark Channel Prior-based Segmentation Method Feature Extraction Image Recognition Image Segmentation Meanshift Clustering Method Pattern Clustering Quadrilateral Constraint Roads Straight Line Extraction Unstructured Road Environment Vanishing Point Detection Method Vertical Envelope Vertical Line Interference Elimination
Content Type	Text
Resource Type	Article
Subject	Computer Vision and Pattern Recognition Software

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