Pattern Recognition of Complex Distributed Ditches

The ditch pattern reflects the distribution characteristics of an agricultural drainage system and needs to be detected enrich data source before map generalization. Due several breaks, connectivity ditches is destroyed between rivers in representation, making its structure complex. Previous studies have primarily focused on extracting parallel ditches, paying less attention complex with breaks. recognition does not merely involve extraction relation. It involves different level relations, which a great challenge. Therefore, this study proposes novel model describe ditches. Our work consisted following three main contributions: (1) collinear relation was defined detect groups segments separated by (2) detection method improved throughout multi-parameter combined constraints, (3) main-tributary proposed build connection rivers. experimental results showed that solved effectively recognition.