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Zhu, H. (author), Chun, Jen Jen (author), Lawrance, Nicholas R.J. (author), Siegwart, Roland (author), Alonso-Mora, J. (author)This paper presents an online informative path planning approach for active information gathering on three-dimensional surfaces using aerial robots. Most existing works on surface inspection focus on planning a path offline that can provide full coverage of the surface, which inherently assumes the surface information is uniformly distributed...conference paper 2021