直线检测

直线检测大体可分为从上而下以及从下而上两种模式。
1。从上而下的直线检测模式典型代表Hough变换，将直线由坐标空间变换为参数空间，进而投票检测直线
2。从下而上的直线检测模式有链码跟踪，以及相位编组等。LSD[1]( "LSD: A Fast Line Segment Detector with a False Detection Control" by Rafael Grompone von Gioi, Jeremie Jakubowicz, Jean-Michel Morel, and Gregory Randall, IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 32, no. 4, pp. 722-732, April, 2010.)也是一种优秀的短直线检测方法(LSD: A Fast Line Segment Detector with a False Detection Control)
3。从下而上的直线检测方法多检测到短线段，然后将短线段聚类形成长直线，戴激光等[2]提出的权重投影模型是应该不错的聚类方法

Reference
[1]Rafael Grompone von Gioi, Jeremie Jakubowicz, Jean-Michel Morel, and Gregory Randall, LSD: A Fast Line Segment Detector with a False Detection Control IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 32, no. 4, pp. 722-732, April, 2010.
[2]戴激光等,遥感影像主特征线检测[J]. 遥感学报, 2017(2).