Real-time adaptable and coherent rendering for outdoor augmented reality

Abstract This paper describes the development and evaluation of a color estimation method that is able to create more natural lighting conditions for outdoor-purposed augmented reality (AR) technology. In outdoor AR systems, the real outdoor light source (i.e., the sun) illuminates real objects, whi...

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Main Authors: Sanghyun Seo, Dongwann Kang, Sangoh Park
Format: Article
Language:English
Published: SpringerOpen 2018-11-01
Series:EURASIP Journal on Image and Video Processing
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13640-018-0357-8
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author Sanghyun Seo
Dongwann Kang
Sangoh Park
author_facet Sanghyun Seo
Dongwann Kang
Sangoh Park
author_sort Sanghyun Seo
collection DOAJ
description Abstract This paper describes the development and evaluation of a color estimation method that is able to create more natural lighting conditions for outdoor-purposed augmented reality (AR) technology. In outdoor AR systems, the real outdoor light source (i.e., the sun) illuminates real objects, while a virtual light source illuminates the augmented virtual objects. These two light sources result in color differentials, with the real object and virtual object being visualized as a mixture of the colors induced by the two light sources. As such, there is a visible difference in color between the real object and the virtual object. Consequently, this visible color difference will vitiate the sense of immersion felt by the AR user. Thus, to overcome this problem, we have defined each RGB color channel value by analyzing the color generated by the outdoor light source and applied the defined values to the virtual light source to reduce the visibility of the color differential between the two light sources, thereby reducing the visualized incompatibility between the virtual object and the real background. In addition, using virtual objects to express weather events, in combination with the color estimation method, we were able to demonstrate that the proposed method can adequately adapt to and manage the weather changes that affect outdoor AR. The proposed method has the potential to improve the visual coincidence between the real outdoor background and virtual objects.
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spelling doaj.art-5c9632938ee4463fa10937fa5d77b8e32022-12-22T01:59:46ZengSpringerOpenEURASIP Journal on Image and Video Processing1687-52812018-11-01201811810.1186/s13640-018-0357-8Real-time adaptable and coherent rendering for outdoor augmented realitySanghyun Seo0Dongwann Kang1Sangoh Park2Division of Media Software, Sungkyul UniversityDept. of Computer Science and Engineering, Seoul National University of Science and TechnologySchool of Computer Science and Engineering, Chung-Ang UniversityAbstract This paper describes the development and evaluation of a color estimation method that is able to create more natural lighting conditions for outdoor-purposed augmented reality (AR) technology. In outdoor AR systems, the real outdoor light source (i.e., the sun) illuminates real objects, while a virtual light source illuminates the augmented virtual objects. These two light sources result in color differentials, with the real object and virtual object being visualized as a mixture of the colors induced by the two light sources. As such, there is a visible difference in color between the real object and the virtual object. Consequently, this visible color difference will vitiate the sense of immersion felt by the AR user. Thus, to overcome this problem, we have defined each RGB color channel value by analyzing the color generated by the outdoor light source and applied the defined values to the virtual light source to reduce the visibility of the color differential between the two light sources, thereby reducing the visualized incompatibility between the virtual object and the real background. In addition, using virtual objects to express weather events, in combination with the color estimation method, we were able to demonstrate that the proposed method can adequately adapt to and manage the weather changes that affect outdoor AR. The proposed method has the potential to improve the visual coincidence between the real outdoor background and virtual objects.http://link.springer.com/article/10.1186/s13640-018-0357-8Augmented realityColor temperatureOutdoor lightingReal weather
spellingShingle Sanghyun Seo
Dongwann Kang
Sangoh Park
Real-time adaptable and coherent rendering for outdoor augmented reality
EURASIP Journal on Image and Video Processing
Augmented reality
Color temperature
Outdoor lighting
Real weather
title Real-time adaptable and coherent rendering for outdoor augmented reality
title_full Real-time adaptable and coherent rendering for outdoor augmented reality
title_fullStr Real-time adaptable and coherent rendering for outdoor augmented reality
title_full_unstemmed Real-time adaptable and coherent rendering for outdoor augmented reality
title_short Real-time adaptable and coherent rendering for outdoor augmented reality
title_sort real time adaptable and coherent rendering for outdoor augmented reality
topic Augmented reality
Color temperature
Outdoor lighting
Real weather
url http://link.springer.com/article/10.1186/s13640-018-0357-8
work_keys_str_mv AT sanghyunseo realtimeadaptableandcoherentrenderingforoutdooraugmentedreality
AT dongwannkang realtimeadaptableandcoherentrenderingforoutdooraugmentedreality
AT sangohpark realtimeadaptableandcoherentrenderingforoutdooraugmentedreality