4D imaging through spray-on optics
4D imaging through spray-on optics
复制标题
通过喷涂光学器件进行 4D 成像
DOI:
10.1145/3072959.3073589
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
M. B. Hullin
中科院分区:
文献类型:
--
作者:
J. Iseringhausen;B. Goldlücke;N. Pesheva;S. Iliev;A. Wender;M. Fuchs;M. B. Hullin
Light fields are a powerful concept in computational imaging and a mainstay in image-based rendering; however, so far their acquisition required either carefully designed and calibrated optical systems (micro-lens arrays), or multi-camera/multi-shot settings. Here, we show that fully calibrated light field data can be obtained from a single ordinary photograph taken through a partially wetted window. Each drop of water produces a distorted view on the scene, and the challenge of recovering the unknown mapping from pixel coordinates to refracted rays in space is a severely underconstrained problem. The key idea behind our solution is to combine ray tracing and low-level image analysis techniques (extraction of 2D drop contours and locations of scene features seen through drops) with state-of-the-art drop shape simulation and an iterative refinement scheme to enforce photo-consistency across features that are seen in multiple views. This novel approach not only recovers a dense pixel-to-ray mapping, but also the refractive geometry through which the scene is observed, to high accuracy. We therefore anticipate that our inherently self-calibrating scheme might also find applications in other fields, for instance in materials science where the wetting properties of liquids on surfaces are investigated.
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DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
宗政俊一;岩井原瑞穂;Y.Mukaigawa
通讯作者:
Y.Mukaigawa
DOI:
10.1016/0045-7825(95)00831-k
发表时间:
1995-10
影响因子:
7.2
作者:
S. Iliev
通讯作者:
S. Iliev
DOI:
--
发表时间:
2011
期刊:
International Conference on Computer Graphics and Interactive Techniques
影响因子:
--
作者:
M. Hullin;H. Lensch;R. Raskar;H. Seidel;Ivo Ihrke
通讯作者:
Ivo Ihrke
影响因子:
9.9
作者:
S. Iliev;N. Pesheva
通讯作者:
N. Pesheva
DOI:
--
发表时间:
2011
期刊:
Computer graphics forum (Print)
影响因子:
--
作者:
M. Hullin;H. Lensch;R. Raskar;H. Seidel;Ivo Ihrke
通讯作者:
Ivo Ihrke