Case Study | From Legacy 2D Drawings to Digital 3D Models The only thing the engineer has on hand is a photo of the drawing. Factories may store blueprints from decades ago. Some projects use scanned PDF drawings or hand-drawn sketches. While engineering knowledge itself exists, turning it into a form that can be utilized in current digital workflows often requires enormous manual work. Traditionally, engineers had to read drawings, redraw them, and create models manually. For organizations managing large drawing archives, this means spending significant time and effort reconstructing existing information. To address this challenge, VNPT has developed an AI-powered 3D drawing reconstruction solution. Automatically converts digital drawings, scanned drawings, photos, and hand-drawn drawings into structured CAD and 3D models. Computer vision, AI-powered OCR, geometric reconstruction, automated verification By combining them, this solution can recognize technical objects, symbols, dimensions, and annotations, and reconstruct the relationships between them. Additionally, for drawings where information is unclear or incomplete, a human-in-the-loop approach is adopted. The human-in-the-loop approach allows engineers to verify and adjust AI-generated results, ensuring technical reliability even in cases where expert judgment is still required. Track Performance: - Achieves object recognition accuracy of 90–95% in compatible drawing standards, enabling highly reliable recognition of technical objects, symbols, dimensions, and annotations. - Depending on the quality and complexity of the drawings, automation rates can be achieved at 70–90%. - The conversion time from 2D drawings to structured 3D models ranges from 5 to 35 seconds. - Verification based on technical standards maintains dimensional consistency within agreed tolerance ranges and supports expert checks in complex cases. This solution provides editable CAD output in DXF, DWG, and JSON formats. and supports various technology platforms including AutoCAD. It is also compatible. Engineering teams can directly review and adjust AI-generated models within existing workflows to further develop them. By converting legacy drawings into structured digital models, this solution supports applications across a wide range of fields including manufacturing, mechanical engineering, shipbuilding, heavy industry, and urban infrastructure. This enables organizations to reduce manual work, improve design accuracy, accelerate engineering processes, and transform legacy technical insights into reusable digital assets. VNPT Global Solutions Built for operation. Trusted delivery. #VNPT #VNPTGlobalSolutions #VNPTグローバルソリューションズ #デジタルエンジニアリング #3Dモデリング #AI #人工知能 #CAD #DX #デジタルトランスフォーメーション … more