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Overlapping Shadow Rendering for Outdoor Augmented Reality

Computers, Materials & Continua 2021年第5期67卷 1915-1932页

作者： Naira Elazab Shaker El-Sappagh ahmed atwan Hassan Soliman Mohammed Elmogy Louai Alarabi Nagham Mekky Faculty of Computers and Information Mansoura UniversityMansoura35516Egypt Universidade de Santiago de Compostela Santiago de Compostela15705Spain Faculty of Computers and Articial Intelligence Benha UniversityBenha13512Egypt Faculty of Computer Sciences and Information Technology Northern Border UniversityArarSaudi Arabia College of Computer and Information Systems Umm Al-Qura UniversityMeccaSaudi Arabiagham Mekky

Realism rendering methods of outdoor augmented reality(AR)is an interesting *** items in outdoor AR need advanced impacts like shadows,sunshine,and relations between unreal items.A few realistic rendering approaches were built to overcome this *** of these approaches are not dealt with real-time ***,the issue remains an active research topic,especially in outdoor *** paper introduces a new approach to accomplish reality real-time outdoor rendering by considering the relation between items in AR regarding shadows in any place during *** proposed method includes three principal stages that cover various outdoor AR rendering ***,real shadow recognition was generated considering the sun’s location and the intensity of the *** second step involves real shadow ***,we introduced a shadow production algorithm technique and shades through its impacts on unreal items in the *** selected approach’s target is providing a fast shadow recognition technique without affecting the system’s *** achieved an average accuracy of 95.1%and an area under the curve(AUC)of 92.5%.The outputs demonstrated that the proposed approach had enhanced the reality of outside AR *** results of the proposed method outperformed other state-of-the-art rendering shadow techniques’outcomes.

关键词： Augmented reality outdoor rendering virtual shadow shadow overlapping hybrid shadow map

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