Automatic road extraction with Bhattacharyya coefficient

doi:10.3778/j.issn.1002-8331.2010.13.059

Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (13): 197-198.DOI: 10.3778/j.issn.1002-8331.2010.13.059

• 图形、图像、模式识别 • Previous Articles Next Articles

Automatic road extraction with Bhattacharyya coefficient

LIU Peng-fei¹，ZHANG Jian-qing^1，2，PAN Li¹，LIU Yong-liang³

1.School of Remote Sensing and Information Engineering，Wuhan University，Wuhan 430079，China
2.State Key Lab of Information Engineering in Surveying，Mapping and Remote Sensing，Wuhan University，Wuhan 430079，China
3.Chengdu Hydroelectric Investigation & Design Institute of SPC，Chengdu 610000，China

Received:2010-03-01 Revised:2010-04-16 Online:2010-05-01 Published:2010-05-01
Contact: LIU Peng-fei

使用Bhattacharyya系数的道路自动提取

刘朋飞¹，张剑清^1，2，潘励¹，刘永亮³

1.武汉大学遥感信息工程学院，武汉 430079
2.武汉大学测绘遥感信息工程国家重点实验室，武汉 430079
3.四川中水成勘院测绘工程有限责任公司，成都 610000

通讯作者: 刘朋飞

Abstract

Abstract: In this paper，a method on road extraction from small scale orthoimage based on Bhattacharyya coefficient is introduced.First，the road is assumed as the set of the center point whose ideal gray distribution feature can be supposed as normal distribution（also known as Gauss distribution），and then Bhattacharyya coefficient is calculated for each pixel of the candidate image.And the ones with greater coefficient values can be seen as road center points.Experiments prove the validity of this algorithm.

Key words: road center point, normal distribution, Bhattacharyya coefficient, ideal model

摘要： 介绍了基于Bhattacharyya系数的小比例尺正射影像道路提取方法。首先假设道路点的灰度特征符合标准正态分布，建立理想道路模型，在影像中通过计算Bhattacharyya系数评价该位置为道路点的可能性，系数较大者为道路点。实验证明该方法具有一定的可行性。

关键词: 道路中心点, 正态分布, Bhattacharyya系数, 理想模型

CLC Number:

TP751.1

LIU Peng-fei¹，ZHANG Jian-qing^1，2，PAN Li¹，LIU Yong-liang³. Automatic road extraction with Bhattacharyya coefficient[J]. Computer Engineering and Applications, 2010, 46(13): 197-198.

刘朋飞¹，张剑清^1，2，潘励¹，刘永亮³. 使用Bhattacharyya系数的道路自动提取[J]. 计算机工程与应用, 2010, 46(13): 197-198.

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Automatic road extraction with Bhattacharyya coefficient

使用Bhattacharyya系数的道路自动提取

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