Building model monomerization method, device, storage medium and electronic equipment

A technology of architectural model and single body, applied in the computer field, can solve the problems of slow speed and high cost

Active Publication Date: 2021-01-01
BEIHANG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Through the above method, it takes a lot of labor, resulting in high cost and slow speed

Method used

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  • Building model monomerization method, device, storage medium and electronic equipment
  • Building model monomerization method, device, storage medium and electronic equipment
  • Building model monomerization method, device, storage medium and electronic equipment

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[0118] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0119]In the description of the present application, it should be understood that the terms "first", "second" and so on are used for descriptive purposes only, and should not be understood as indicating or implying relative importance. In the description of the present application, it should be noted that, unless otherwise specified and limited, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, ...

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Abstract

The embodiment of the invention discloses an oblique photography building model monomerization method and device based on point density projection, a storage medium and electronic equipment. The method comprises the steps: carrying out the planar projection of a building point cloud model obtained through oblique photography, obtaining a density projection drawing, carrying out the gray thresholdfiltering and morphological expansion of the density projection drawing, and obtaining a gray threshold value of the density projection drawing; obtaining a building facade orthographic projection area, carrying out connected component analysis on the building facade orthographic projection area by utilizing a two pass algorithm, segmenting connected components containing each single building, calculating a minimum bounding box for each connected component, and carrying out contour modeling and block merging to obtain a single building image; and taking the single building image as a mask, reserving points falling in the foreground when the point cloud is projected to the image, extracting the single building point cloud, and completing the monomerization. By adopting the embodiment of theinvention, the oblique photography building model monomerization device automatically extracts each single building from the building point cloud model, and the efficiency is improved.

Description

technical field [0001] The present application relates to the field of computer technology, and in particular to a method, device, storage medium and electronic equipment for singulating an oblique photographic architectural model. Background technique [0002] Traditional 3D modeling usually uses 3dsMax, AutoCAD and other modeling software to perform manual modeling based on information such as image data, CAD plans or photographs to estimate building outlines and heights. The accuracy of the model data produced in this way is low, the deviation between the texture and the actual effect is large, and the production process requires a lot of manual participation; at the same time, the data production cycle is long, resulting in low timeliness of the data. [0003] In the past ten years, a technology of oblique photography has been developed. This technology acquires rich high-resolution textures of building top surfaces and side views by synchronously collecting images from ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/13G06F16/29
CPCG06F30/13G06F16/29
Inventor 谭玉敏李云新童朝霞王三仟
Owner BEIHANG UNIV
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