METHOD FOR GENERATING DIGITAL SURFACE MODEL BASED ON PARALLEL PROCESSING AND SYSTEM THEREOF

摘要

A method and system for generating a digital surface model based on parallel processing are disclosed. A method of generating a digital surface model according to an embodiment of the present invention includes dividing a target area for generating a digital surface model (DSM) into a plurality of unit areas; Searching reference images including at least a part of each of the plurality of unit areas from among a plurality of image data including at least a part of the target area; Extracting a height value corresponding to two-dimensional coordinates of each of the plurality of unit areas using the searched reference images, and calculating a unit DSM for each of the plurality of unit areas using the extracted height value; And generating a DSM of the target area using the generated unit DSM, wherein the step of generating the unit DSM comprises: parallel processing each of the unit areas corresponding to the reference images, It is possible to improve the DSM generation speed by reducing the calculation amount, memory, and processing time required to generate the DSM of the target area and to separately generate the DSM of the specific area that needs to be updated in the target area, Is easy to update.