Dynamic measurable real scene map creation method

Abstract

The invention discloses a dynamic measurable real scene map creation method. According to the method, low-density discrete point cloud data within a designated range in a viewpoint range is acquired;point cloud data noise removal is performed according to a point cloud data adjacent relation; a partitioning plane where the point cloud data is divided is calculated; the point cloud data is saved in blocks; a triangular network is established; a depth map is constructed; real scene click position coordinates are obtained; the position of video data in a measurable real scene is calculated; a triangular network within a preset range around the position of the video data is acquired; a plane with fixed length and width is fitted to server as a placement plane of the video data; elevation values of corresponding positions in a three-dimensional scene are given to all element coordinates of two-dimensional plane data; and an on-demand loading strategy is adopted during scene vector elementrendering. Through the method, the problem that a wrong position is prone to be acquired when the position coordinates are acquired through the depth map created based on point cloud is solved, and meanwhile the precision of the click acquisition position in the low-density point cloud is improved through plane structure characteristics.

Description

technical field

[0001] The invention belongs to the measurable real-scene field in the field of surveying and mapping geographic information, and in particular relates to a method for making a dynamic measurable real-scene map. Background technique

[0002] Street View uses panoramic cameras and positioning equipment to record the real-world image information of the location sequence, and the user can only get the visual model of the given location and the rough spatial model based on a limited number of positioning points.

[0003] The measurable real-scene image is based on the basic display principle of street view, and at the same time collects three-dimensional surface position information along the line through vehicle-mounted or ship-borne mobile measurement technology. It has a relatively complete geospatial model and is a real-scene image expression in three-dimensional space.

[0004] The traditional measurable real scene only introduces the concept of measurable o...

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