Georeferenced Floorplan Modeling From Blueprint Images
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Solution Overview
Problem
Existing blueprints are cumbersome to quickly parse for layout information, especially in emergency scenarios, and lack coordinate information for building features, hindering rapid understanding and location tracking of first responders.
Innovation Solution
A system that analyzes scanned blueprint images using machine learning models to identify floor and elevation sheets, extracts contours, and georeferences them to a three-dimensional map, enabling accurate location determination of building features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If blueprints are used to understand building layout, then building layout information is available, but it is cumbersome to quickly parse and lacks coordinate information
Solution Approach 1:
The patent creates a digital three-dimensional model that replicates the building layout from two-dimensional blueprints. This digital copy includes embedded coordinate information and can be rapidly queried, eliminating the need to manually parse physical or scanned blueprints while preserving all layout details.
Solution Approach 2:
The patent transforms two-dimensional blueprint data into a three-dimensional digital model with geospatial coordinates. This dimensional transformation adds location information (latitude, longitude, elevation) to the building layout data, enabling rapid spatial queries and visualization without losing any original blueprint information.
2Measurement precision
If manual parsing of blueprints is used, then building layout information can be extracted, but it is time-consuming and lacks precision for location tracking
Solution Approach 1:
The patent replaces manual mechanical parsing of blueprints with automated image processing and machine learning algorithms. The system automatically extracts building features, generates three-dimensional models, and assigns precise geospatial coordinates, eliminating human effort while achieving sub-meter location accuracy.
Solution Approach 2:
The patent introduces a digital three-dimensional model as an intermediary between the blueprint and the end user. This model serves as a processed representation that contains both layout information and precise coordinate data, allowing rapid queries without requiring direct manual analysis of the original blueprint.
3Ease of operation
If blueprints lack coordinate information, then building layout is depicted, but location tracking of first responders is hindered
Solution Approach 1:
The patent creates a three-dimensional digital model that serves multiple functions simultaneously: it preserves building layout information from blueprints, adds geospatial coordinate data, and enables location tracking applications. This single digital representation replaces multiple separate systems (blueprint storage, coordinate databases, and tracking software).
Data Source
AI summary
Methods and systems for improved generation and georeferencing of floor plans are presented. In one embodiment, a method is presented that includes receiving images that depict sheets of a blueprint of a structure. Subsets of the images depicting floor sheets and elevation sheets may be identified. Exterior contours may be extracted from the images depicting floor sheets and elevation contours may be extracted from the images depicting elevation sheets. A corresponding structure within a three-dimensional map may be identified based on the exterior contours and the elevation contours. A three-dimensional contour of the exterior of the structure may be extracted from the three-dimensional map.