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.
Highlights
With the rapid development and diffusion of information technology and mobile-device-related technology within South Korea, approximately 80% of the population have come to own a personal mobile device that is equipped with a camera [1]
Kolivand and Sunar’s aim is similar to that of the study presented in this paper, as this study aims to increase the compatibility of virtual objects with the physical environment by determining the position of the sun with respect to the latitude, date, and time
4 Conclusions In this paper, we proposed a method to solve the visualization incompatibility problem in augmented reality (AR) by altering the rendering style of virtual objects as based on real outdoor lighting color data and real weather attributes
Summary
With the rapid development and diffusion of information technology and mobile-device-related technology within South Korea, approximately 80% of the population have come to own a personal mobile device that is equipped with a camera [1]. Information design incorporates a technique to determine the rendering style of a virtual object as based on various conditions of the real background viewed by a user. The realization of the virtual object as a result of changing the rendering style amplifies the feeling of immersion experienced by the user and strengthens the power of information transfer. Because of these benefits, synchronization technology research is considered as necessary to ensure that users continue to use the content; this is especially relevant for outdoor use AR applications.
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