PUMA publications for /user/leonkokkoliadis/visus:wenderar%202017https://puma.ub.uni-stuttgart.de/user/leonkokkoliadis/visus:wenderar%202017PUMA RSS feed for /user/leonkokkoliadis/visus:wenderar%2020172024-03-28T22:37:33+01:004D Imaging through Spray-On Opticshttps://puma.ub.uni-stuttgart.de/bibtex/2ecf934bf6944e339aff97bb7c0b583bb/leonkokkoliadisleonkokkoliadis2020-02-27T12:11:35+01:002017 A06 sfbtrr161 visus:wenderar <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Julian Iseringhausen" itemprop="url" href="/person/1eed69429f6a861984cd7743f5b91f57e/author/0"><span itemprop="name">J. Iseringhausen</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Bastian Goldlücke" itemprop="url" href="/person/1eed69429f6a861984cd7743f5b91f57e/author/1"><span itemprop="name">B. Goldlücke</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Nina Pesheva" itemprop="url" href="/person/1eed69429f6a861984cd7743f5b91f57e/author/2"><span itemprop="name">N. Pesheva</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Stanimir Iliev" itemprop="url" href="/person/1eed69429f6a861984cd7743f5b91f57e/author/3"><span itemprop="name">S. Iliev</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Alexander Wender" itemprop="url" href="/person/1eed69429f6a861984cd7743f5b91f57e/author/4"><span itemprop="name">A. Wender</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Martin Fuchs" itemprop="url" href="/person/1eed69429f6a861984cd7743f5b91f57e/author/5"><span itemprop="name">M. Fuchs</span></a></span>, </span> und <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Matthias B. Hullin" itemprop="url" href="/person/1eed69429f6a861984cd7743f5b91f57e/author/6"><span itemprop="name">M. B. Hullin</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"> <em><span itemtype="http://schema.org/PublicationVolume" itemscope="itemscope" itemprop="isPartOf"><span itemprop="volumeNumber">36 </span></span>(<span itemprop="issueNumber">4</span>):
<span itemprop="pagination">35:1--35:11</span></em> </span>(<em><span>2017<meta content="2017" itemprop="datePublished"/></span></em>)</span>Thu Feb 27 12:11:35 CET 2020ACM Transactions on Graphics435:1--35:114D Imaging through Spray-On Optics 3620172017 A06 sfbtrr161 visus:wenderar 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.