AI Floor Plan Measurement Engine

Project Overview

This project delivers a complete AI system capable of transforming a simple 2D floor plan into precise, structured measurements usable by contractors, painters and real-estate professionals.
The application detects walls, computes their lengths, derives room areas and calculates accurate perimeters while excluding openings. It also estimates missing dimensions when they are not present in the drawing, based on geometric relationships between existing measurements.

Business Problem

The client needed an automated system that:

• reads floor plans of different styles and qualities

• extracts usable wall lengths while removing doors and windows

• computes areas and perimeters automatically

• estimates missing dimensions intelligently

• exports clean data for further processing

Solution 

I developed a complete desktop application powered by advanced computer vision and fine-tuned detection models.

The solution includes:

• YOLO-based wall detection (fine-tuned on the client's floor plan dataset)

• Custom preprocessing pipeline for contour refinement, line isolation and noise removal

• Depth-consistent pixel-to-meter conversion 

• GPT-assisted logic for grouping wall segments and validating ambiguous structures

• Estimation engine for walls without measurements

• Excel + JSON export for all computed values 

Project Milestones 

Project Conclusion 

The final application successfully automates a process that previously required manual measurements, repeated inspections and subjective estimations.
The system detects structural lines with reliable consistency, computes areas and perimeters accurately and eliminates openings to provide usable wall lengths specifically for construction and painting workflows.

The client was extremely satisfied and requested additional projects after delivery.
The tool now extracts measurements from 2D plans in seconds, something that earlier took hours and provides consistent, reproducible results across hundreds of drawings.

Impact

• Reduced manual measurement workload from hours to seconds
  
  

• Achieved 85–90% accuracy on real-world floor plans
  
  

• Enabled precise wall-length extraction excluding doors and windows
  
  

• Delivered Excel + JSON outputs ready for industry workflows