Indoor automatic drawing and modeling method based on planar image

A technology of automatic mapping and modeling methods, which is applied in neural learning methods, biological neural network models, special data processing applications, etc., and can solve problems such as low room detection rate and difficulty in topology repair.
CN110532602AActive Publication Date: 2019-12-03CHINA UNIV OF GEOSCIENCES (WUHAN)
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
CHINA UNIV OF GEOSCIENCES (WUHAN)
Publication Date
2019-12-03

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Abstract

The invention provides an indoor automatic drawing and modeling method based on a planar image. A planar image is used as a data source, instance segmentation is carried out on the planar image, semantic types and geometric contours of various indoor building elements such as walls and doors and windows are extracted, and a two-dimensional indoor map and a three-dimensional simple model which areconsistent in topology are generated through post-processing steps such as topological optimization and restoration. The method does not need to manually design a large number of image processing rules, directly obtains the image features through learning, and can be used for the recognition of various types of plane images. The method has the beneficial effects that the one-to-one detection rateof the indoor navigable space is effectively improved, inclined building elements on a plane image can be processed, and the requirements of indoor position service for maps and models of public places are met.
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Description

technical field

[0001] The invention relates to the technical field of indoor drawing and modeling, in particular to an indoor automatic drawing and modeling method based on planar images. Background technique

[0002] In recent years, indoor positioning technology and indoor location services have developed rapidly, and the demand for basic data such as indoor maps and spatial models has also developed rapidly. Architectural floor plan images are a very popular type of data source in interior mapping and modeling production. Compared with surveying and modeling methods such as laser point cloud, floor plan is an easier data source to obtain and process. However, in the current indoor drawing and modeling production, the indoor drawing and modeling using the floor plan image as the data source requires professional draftsmen to extract vector space elements such as walls, rooms, doors and windows in the plan view. The process is very cumbersome and inefficient. Low, it is ...

Claims

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