[1]ZHENG Yi,ZHENG Ping.Comments and perspectives on illumination direction estimation methods in augmented reality[J].CAAI Transactions on Intelligent Systems,2012,7(5):389-397.
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CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
7
Number of periods:
2012 5
Page number:
389-397
Column:
综述
Public date:
2012-10-25
- Title:
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Comments and perspectives on illumination direction estimation methods in augmented reality
- Author(s):
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ZHENG Yi1; 2; ZHENG Ping3
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1. College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. School of Information and Electronic Engineering, Shandong Institute of Business and Technology, Yantai 264005, China;
3. Institute for Pattern Recognition and Artificial Intelligence, Huazhong University of Science and Technology, Wuhan 430074, China
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- Keywords:
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augmented reality; illumination consistency; illumination direction estimation; stereo vision; artificial intelligence
- CLC:
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TP391.41
- DOI:
-
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- Abstract:
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Illumination consistency plays an important role in merging virtual objects into real scenes for augmented reality. Realtime illumination direction estimation for outdoor scenes is important for both illumination consistency and high realism of augmented reality. Aiming at problems of illumination direction estimation, characteristics of illumination direction estimation for outdoor scenes are generalized, and the taxonomy of illumination direction estimation methods is presented. Existing illumination direction estimation methods consist of light probe sphere based method, stereo vision based method and artificial intelligence based method. Relevant fundamental principles and typical algorithms are concluded, and their advantages and disadvantages are compared in detail. Finally, according to existing problems and challenges in actual applications, future research trends of illumination direction estimation for outdoor augmented reality systems are foreseen.