17–19 Sept 2025
Tehnical University of Moldova
Europe/Bucharest timezone

A Lightweight and Scalable 3D Scanning System for Indoor Spaces Using Smartphones and Server-Side Depth Estimation

19 Sept 2025, 10:30
15m
Room 3

Room 3

Technical University of Moldova
Paper presentation Grid, Cloud & High Performance Computing in Science Sensor Networking

Speaker

ALEXANDRU BLEJAN (UPB)

Description

In the context of digital transformation across industries such as interior design, real estate, and warehouse management, there is a growing demand for accessible, efficient, and accurate 3D spatial data acquisition. Traditional methods using LiDAR or structured light systems offer high precision but are often cost-prohibitive and technically demanding. This research introduces a novel and scalable system that enables users to generate full 3D reconstructions of indoor environments using only a smartphone with dual cameras and a centralized image-processing server.
The system is composed of two main components: an Android application for panoramic image capture and metadata extraction, and a server that performs image enhancement, monocular depth estimation using a customized GLPDepth model, and point cloud generation via Open3D. Final 3D models are calibrated based on user-validated scale references and can be exported to CAD formats or visualized in VR-ready environments.This architecture allows for consistent performance, while ensuring model fidelity through advanced preprocessing techniques and focus-based depth refinement. Additional features include integration with AI-powered interior design tools and multi-user request management via timestamped asynchronous processing.
The proposed solution is fast, cost-effective, and highly adaptable, with potential applications in education, retail, smart homes, and beyond. This project demonstrates how edge-device simplicity and cloud-based intelligence can be leveraged to offer a practical alternative to conventional 3D scanning technologies.

Authors

ALEXANDRU BLEJAN (UPB) Alexandru Vaduva (UPB)

Presentation materials

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