International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 11 | Nov 2025
p-ISSN: 2395-0072
www.irjet.net
RoomAR: An AR/VR-Based Room Scanning and Virtual Interior Visualization System Ashish Mali1, Aryan Gupta2, Krishna Hudge3 1,2,3 Vishwakarma Institute of Technology, Pune, India
---------------------------------------------------------------------***--------------------------------------------------------------------1.1 Problem Statement Abstract – This work presents a comprehensive AR/VR system for interior décor planning, enabling users and designers to visualize and arrange furnishings in real space. Using Unity3D with AR Foundation, the system employs Apple’s ARKit and Google’s ARCore for real-time room scanning and plane detectionikea.comijetrm.com. A virtual 3D mesh of the room is generated via device sensors (including LiDAR where available) to support accurate placement of 3D furniture models. Computer vision (e.g. YOLOv5) can be integrated to detect existing room objects and suggest suitable décor itemsdocs.ultralytics.comijetrm.com. Optionally, BIM data (e.g. Revit models) may be imported to anchor the visualization to real building geometrylink.springer.com. In testing, our AR placement accuracy matches industry benchmarks (e.g. IKEA Place reports ~98% scaling accuracyikea.com), while user engagement is greatly increased (AR users are ~11× more likely to purchasehouzz.com). The VR component runs on the same Unity scene (for Oculus/Quest or Vision Pro), allowing immersive walkthroughs of the designed space. Overall, the system streamlines spatial understanding, reduces indecision, and bridges the gap between 2D plans and real-world outcome.
Although many low-cost prototypes exist, they still have several key problems. Many existing systems use a single microcontroller to both acquire sensor data and communicate with the network, leading to latency and potential failure points in critical alert functions. Systems depending solely on cloud-based alerts stop working during network outages, which creates a safety vulnerability. [2].
1.2 Research Objectives This project is designed to address these gaps with the following objectives: (1) Design and implement a real-time air pollution monitoring system using readily available, lowcost components within an IoT framework; (2) Develop a dual-microcontroller architecture that decouples timecritical sensor acquisition and alerting from network communication tasks; (3) Integrate an MQ135 gas sensor for detection of common airborne pollutants; (4) Implement immediate local feedback mechanisms through an I 2C LCD display and audiovisual alerts; (5) Enable wireless data transmission to the Blynk IoT platform for remote monitoring; (6) Validate system functionality through controlled experimental testing.
Key Words: Spatial mesh reconstruction, real-time plane detection, virtual object positioning, cross-platform AR application, mobile sensor fusion, immersive spatial decision-making, computer vision integration, BIM-AR convergence, user engagement optimization, interior design visualization.
1.3 Research Contributions The main contributions are: (1) A dual-microcontroller architecture, which was validated experimently to enhance system robustness by isolating safety-critical functions from network dependencies; (2) End-to-end system integration from sensor hardware to cloud visualization; (3) A performance validation that shows system responsiveness and operational stability.
1. INTRODUCTION Traditional interior design relies on 2D plans or showroom visits, making it difficult for clients to anticipate how furniture and décor will look and fit in their own roomsijraset.com. This limited visualization often leads to costly rework and indecision. Augmented and virtual reality address this by overlaying digital models onto the real environment or immersing users in a virtual replica of their spaceijraset.comnovatr.com. For example, VR can give a life-sized perspective on scale and layoutnovatr.com, while AR lets users place and view 3D décor in situ. By enhancing spatial understanding and offering interactive previews, AR/VR reduces guesswork in furniture shopping and room planning.
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Fig. 1. RoomAR enabling AR-based visualization of virtual furniture within real environments. This improves spatial
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