Roundabout Recognition Method Based on Improved Hough Transform in Road Networks

CUI Xiaojie, WANG Jiayao, GONG Xianyong, WU Fang
2018 Acta Geodaetica et Cartographica Sinica  
Spatial distribution pattern is significant to the map generalization and map matching. The roundabout is the typical representative of miniature ring-like pattern in road networks. Based on the principle of improved Hough transform to detect the circle, a geometric recognition method of roundabout is proposed in this paper. This method can be divided into two parts:circulating road recognition and branch recognition. Firstly, circulating road is identified by the circle recognition, uniformity
more » ... gnition, uniformity optimization, and similarity optimization. Then the branch is identified by connectivity discrimination, branch classification and combined branch supplementation. The results of partial road data in UK show that the proposed method can effectively identify the roundabouts, and both the recall and precision are higher than the comparison method.
doi:10.11947/j.AGCS.2018.20170736 doaj:e645a57a0e0b43f88d3ccd7b3b3eff5d fatcat:byvq7tdhivcprir4qcscrrgt44