id
	14890
Url
	https://chloe.cnr.it/s/BiDiAr/item/14890
Resource template
	Academic Article
Resource class
	bibo:AcademicArticle
Title
	A Lighting Consistency Technique for Outdoor Augmented Reality Systems Based on Multi-Source Geo-Information
Creator
	Zhu, Kunpeng
	Liu, Shuo
	Sun, Weichao
	Yuan, Yixin
	Wu, Yuang
Date
	2023
Language
	eng
Abstract
	Achieving seamless integration between virtual objects and real scenes has always been an important issue in augmented reality (AR) research. To achieve this, it is necessary to provide virtual objects with real-time and accurate lighting conditions from a real scene. Therefore, the purpose of this study is to realize lighting consistency rendering for real-time AR systems in outdoor environments, aiming to enhance the user’s sense of immersion. In this paper, we propose a lighting consistency technique for real-time AR systems in outdoor environments based on multi-source geographical information (MGI). Specifically, we introduce MGI into the study of lighting consistency and construct a comprehensive database to store and manage the acquired MGI data. Based on this, we proposed a sky radiance model driven using the MGI. Finally, we utilized the sky radiance model along with light sensor data to render the virtual objects in outdoor scenes. The experimental results show that the shadow angular error is reduced to 5.2°, and the system frame rate is increased to 94.26. This means that our method achieves a high level of realism in the fusion of virtual objects and real scenes while ensuring a high frame rate in the system. With this technology, users can conveniently and extensively realize the lighting consistency rendering of real-time AR systems in outdoor scenes using mobile devices.
Is Part Of
	ISPRS International Journal of Geo-Information
Cited by
	13600
Doi
	https://doi.org/10.3390/ijgi12080324
Issn
	2220-9964
Issue
	8
Volume
	12
Homepage
	https://www.zotero.org/groups/5293298/bidiar/items/ERT7VVG4/item-list

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