Roads can be represented by straight lines or linear bands conveniently. In a road image, a straight line may contain some fissures while a linear band may contain some holes and have some attached irregular blocks. The utilization of existing approaches to extract such features has some obvious defects. In order to overcome these disadvantages, this paper puts forward a new method for line extraction. The method first extracts and thins edge points, then finds a base line segment according to the structural characteristics, and finally predicts and detects the following points iteratively by making use of the obtained part. The same principle can also be used to extract the linear bands of which a road consists. The experimental results show that this method has excellent performance.
周绍光, 施海亮. 通过预测和共线性检验快速提取直线特征[J]. 国土资源遥感, 2007, 19(2): 23-26.
ZHOU Shao-Guang, SHI Hai-Liang. THE RAPID EXTRACTION OF THE STRAIGHT LINE AND LINEAR BAND FEATURES BY MEANS
OF PREDICTION AND LINEARITY CHECKING. REMOTE SENSING FOR LAND & RESOURCES, 2007, 19(2): 23-26.