Zebra-crossing detection based on cascaded Hough transform principle and vanishing point characteristics

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-01-01 DOI:10.1515/comp-2022-0260

Chen Zhu, Dong-yuan Ge, Xi-fan Yao, Wenjiang Xiang, Jian Li, Yong-Xiang Li

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Abstract

Abstract In this study, a zebra-crossing detection method based on cascaded Hough transform (CHT) and vanishing point (VP) characteristics is proposed. In this method, the principle of detecting straight lines in the parallel coordinate system is applied to zebra-crossing detection. Each edge point of the image obtained by edge detection is represented in the parallel coordinate system to find the VP. Using the VP coordinate as the judgment condition, those straight lines that do not pass through the VP but meet the straight-line condition are excluded to obtain the straight lines passing through both sides of the zebra crossing, and finally fit the edge points on the straight line, and get the zebra-crossing fitting line segment. Experiments show that CHT has obvious advantages in detection accuracy and speed compared with the Hough transform. At the same time, VPs can be used to eliminate interference segments, which provide support for the accuracy of zebra-crossing detection. This method can get zebra-crossing location information without using region of interest extraction, which also provides a reference method for road detection in some specific cases.

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基于级联霍夫变换原理和消失点特征的斑马交叉检测

摘要本文提出了一种基于级联霍夫变换（CHT）和消失点（VP）特性的斑马线检测方法。该方法将平行坐标系直线检测原理应用于斑马线检测。通过边缘检测获得的图像的每个边缘点在平行坐标系中表示，以找到VP。以VP坐标为判断条件，排除那些不通过VP但满足直线条件的直线，得到通过斑马线两侧的直线，最后拟合直线上的边缘点，得到斑马线拟合线段。实验表明，与霍夫变换相比，CHT在检测精度和速度上具有明显优势。同时，VP可以用于消除干扰段，这为斑马线检测的准确性提供了支持。该方法可以在不使用感兴趣区域提取的情况下获得斑马线位置信息，也为某些特定情况下的道路检测提供了参考方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.