Updating the algorithm for processing laser scanning data using linear objects as an example

Abstract

An increased specification degree concerning the received information about the object as one of the three-dimensional laser scanning technology’s main advantages is determined in the article according to the results analyzes of the Russian and foreign sources. Information redundancy of data at the stage of their processing can be considered as a disadvantage. This is illustrated in the article by the example of processing laser scanning data in the Credo 3D Scan program for the purpose of monitoring the air routes status. In the case under consideration, it was necessary to determine the deflection of the air routes wires over a point cloud. Before directly measuring the deflection, it is necessary to follow the procedure for processing the raw data described in the article. One of the algorithm stages is the automated search for supports and wires provided for the Credo 3D Scan program. It was found that the team accelerates the search for wires among an array of other objects. However, there is no command to calculate the numerical value of the wire deflection, that is why it is necessary to measure the distance from the points corresponding to the Earth’s surface to the lower point of each wire manually. It has been determined that the geoinformation data operative collection task has been generally resolved, while the process of their processing requires optimization. To do this, it is necessary to improve the “Power Transmission Lines Recognition” function by adding a function for automated deflection detection with visualization of each wire given value in the inscription form both in a three-dimensional model and in plan using a conventional symbol.