Real Time Shadow Mapping for Augmented Reality Photorealistic Rendering

Real Time Shadow Mapping for Augmented Reality Photorealistic Rendering

In this paper, we present a solution for the photorealistic ambient light render of holograms into dynamic real scenes, in augmented reality applications. Based on Microsoft HoloLens, we achieved this result with an Image Base Lighting (IBL) approach. The real-time image capturing that has been desi...

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Bibliographic Details
Published in:Applied sciences Vol. 9; no. 11; p. 2225
Main Authors: Osti, Francesco, Santi, Gian Maria, Caligiana, Gianni
Format: Journal Article
Language:English
Published: Basel MDPI AG 01-06-2019
Subjects:
Augmented reality
Automation
Conflicts of interest
Funding
Geometry
Holograms
holographic shadow
Holography
Illumination
image processing
light mapping
Lighting
Mapping
Quality
Real time
Realism
rendering techniques
Shadows
Virtual reality
New York
United States > US
Online Access:Get full text
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Summary:In this paper, we present a solution for the photorealistic ambient light render of holograms into dynamic real scenes, in augmented reality applications. Based on Microsoft HoloLens, we achieved this result with an Image Base Lighting (IBL) approach. The real-time image capturing that has been designed is able to automatically locate and position directional lights providing the right illumination to the holograms. We also implemented a negative “shadow drawing” shader that contributes to the final photorealistic and immersive effect of holograms in real life. The main focus of this research was to achieve a superior photorealism through the combination of real-time lights placement and negative “shadow drawing” shader. The solution was evaluated in various Augmented Reality case studies, from classical ones (using Vuforia Toolkit) to innovative applications (using HoloLens).
ISSN:2076-3417
2076-3417
DOI:10.3390/app9112225