An automated extraction method based on road information point cloud

The present invention discloses a point cloud based on road information automatic extracting method relates to the field mapping and road engineering design and management, comprising the steps of: Data Collection: In floor finish GNSS station selection and acquisition device after passing through the moving calibration internet collection point cloud data; pretreatment: the collected raw data required for pre-processing point cloud data output; point cloud filtering: filtering the point cloud data processed by the filter processing software, automatic classification by the local human-machine interaction accurate classification results classified point cloud; interest was extracted: the cloud point of the filtering performed to extract feature information, according to the desired output format. Advantages of the invention are: to achieve without interrupting normal operation of the existing road traffic precise two-dimensional, three-dimensional information extraction; increase the added value of deep processing of the results of the initial test phase, to achieve a road survey and initial test, location survey work integration, greatly reducing the overall cost of the construction project.