METHOD FOR AUTOMATIC REGISTRATION OF 3-DIMENSIONAL SCAN DATA FOR INTELLIGENT EXCAVATION SYSTEM

• Main Author: CHAE, MYUNG JIN
• Format: Patent
• Language: English; Korean
• Published: 16.05.2013
• Subjects: CALCULATING; COMPUTING; COUNTING; GYROSCOPIC INSTRUMENTS; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

PURPOSE: A method for automatically matching three-dimensional scan data for an intelligent excavation system is provided to automatically update a work progress situation by continuously measuring changes in an earthwork environment. CONSTITUTION: An intelligent excavation system installs a spherical GPS combination type target in a target spot(S110). The intelligent excavation system collects scan data by performing three-dimensional scanning work(S120). The intelligent excavation system automatically recognizes the spherical GPS combination type target(S131). The intelligent excavation system performs the automatic matching of the scan data based on the spherical GPS combination type target. The intelligent excavation system converts a GPS coordinate value of the spherical GPS combination type target into a common coordinate system(S140). The intelligent excavation system merges the scan data by reforming the data into one data format(S150). [Reference numerals] (AA) Automatic matching of scan data; (BB,DD) No; (CC,EE) Yes; (S110) Install a spherical GPS combination type target; (S120) Perform 3D scanning using a 3D scanner; (S131) Perform data clustering(Automatic target recognition); (S132) Calculate a fitting accuracy using the spherical GPS combination type target; (S133) Fitting accuracy satisfied?; (S134) Detect a spherical GPS combination type target included in criteria; (S135) Target function F(M) = Minimum value ?; (S136) Update a transform matrix; (S137) Detect a matrix(M) minimizing the target function F(M) of each cluster; (S140) Transform the GPS coordinates of the spherical GPS combination type target into a common coordinate system; (S150) Reconstruct and merge the matched data to form a 3D survey model