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Neural reflectance transformation imaging

Tinsae G. Dulecha, Filippo A. Fanni, Federico Ponchio, Fabio Pellacini, Andrea Giachetti
2020 The Visual Computer  
This encoding allows the estimation of images relighted from novel, arbitrary lights, with a quality that, however, is not always satisfactory.  ...  On this dataset and as well on a collection of real acquisitions performed on heterogeneous surfaces, we demonstrate the advantages of the proposed relightable image encoding.  ...  A good RTI encoding should be compact and allow interactive relighting from an arbitrary direction, rendering the correct diffuse and specular behaviors of the imaged materials and limiting interpolation  ... 
doi:10.1007/s00371-020-01910-9 fatcat:q5rhmh3uvrccvk6h3klwm3odjm

Designing cinematic lighting by relighting in MR-based pre-visualization

Ryosuke Ichikari, Ryohei Hatano, Toshikaz Oshima, Fumihisa Shibata, Hideyuki Tamura
2009 ACM SIGGRAPH ASIA 2009 Posters on - SIGGRAPH ASIA '09  
This paper describes a relighting method of designing cinematic lighting for filmmaking.  ...  The relighting method enables mixed reality based pre-visualization called MR-PreViz to change conditions of illumination.  ...  Acknowledgements This research is partly supported by the CREST Program of JST.  ... 
doi:10.1145/1666778.1666813 dblp:conf/siggraph/IchikariHOST09 fatcat:olxkam23gzfzhoofxkiuf3rdkq

Interactive relighting with dynamic BRDFs

Xin Sun, Kun Zhou, Yanyun Chen, Stephen Lin, Jiaoying Shi, Baining Guo
2007 ACM SIGGRAPH 2007 papers on - SIGGRAPH '07  
Abstract We present a technique for interactive relighting in which source radiance, viewing direction, and BRDFs can all be changed on the fly.  ...  With relighting based on PTTs, interactive performance with indirect lighting is demonstrated in applications to BRDF animation and material tuning.  ...  Xin Sun and Jiaoying Shi were partially supported by the 973 Program of China (No.2002CB312105).  ... 
doi:10.1145/1275808.1276411 fatcat:4ce7ubzkqfbsvherkrz5dfsoyi

Interactive relighting with dynamic BRDFs

Xin Sun, Kun Zhou, Yanyun Chen, Stephen Lin, Jiaoying Shi, Baining Guo
2007 ACM Transactions on Graphics  
Abstract We present a technique for interactive relighting in which source radiance, viewing direction, and BRDFs can all be changed on the fly.  ...  With relighting based on PTTs, interactive performance with indirect lighting is demonstrated in applications to BRDF animation and material tuning.  ...  Xin Sun and Jiaoying Shi were partially supported by the 973 Program of China (No.2002CB312105).  ... 
doi:10.1145/1239451.1239478 fatcat:o57yt63rcfdsnpcqkgzsgbvemi

Interactive relighting with dynamic BRDFs

Xin Sun, Kun Zhou, Yanyun Chen, Stephen Lin, Jiaoying Shi, Baining Guo
2007 ACM Transactions on Graphics  
Abstract We present a technique for interactive relighting in which source radiance, viewing direction, and BRDFs can all be changed on the fly.  ...  With relighting based on PTTs, interactive performance with indirect lighting is demonstrated in applications to BRDF animation and material tuning.  ...  Xin Sun and Jiaoying Shi were partially supported by the 973 Program of China (No.2002CB312105).  ... 
doi:10.1145/1276377.1276411 fatcat:gnauxzdfjjfn7mpkwwwrixtj3e

Relighting 3D Scenes with a Continuously Moving Camera

Soonhyun Kim, Min-Ho Kyung, Joo-Haeng Lee
2009 ETRI Journal  
In the preprocessing stage, the shading parameters required for the surface shaders, such as surface color, normal, depth, ambient/diffuse/specular coefficients, and roughness, are cached into multiple  ...  This paper proposes a novel technique for 3D scene relighting with interactive viewpoint changes.  ...  What it really aims to achieve is reasonable surface coverage with a small number of cameras allowing interactive performance.  ... 
doi:10.4218/etrij.09.0108.0696 fatcat:lsutsuznl5axffwzudulr5dria

Artistic relighting of paintings and drawings

Bernardo Henz, Manuel M. Oliveira
2015 The Visual Computer  
Our interactive technique uses 3-D shading proxies and can be applied to objects with arbitrary geometries.  ...  We present a practical solution to the problem of subject relighting in paintings and drawings.  ...  Since our shading proxies can be any 3-D models, our image-model registration step (Section 3.1) allows us to relight images of objects with arbitrary geometries.  ... 
doi:10.1007/s00371-015-1150-7 fatcat:bqbpngpkf5e35jwyxnwigqp76e

NeRV: Neural Reflectance and Visibility Fields for Relighting and View Synthesis [article]

Pratul P. Srinivasan and Boyang Deng and Xiuming Zhang and Matthew Tancik and Ben Mildenhall and Jonathan T. Barron
2020 arXiv   pre-print
Together, these allow us to render novel views of the object under arbitrary lighting, including indirect illumination effects.  ...  arbitrary lighting conditions.  ...  NeRF works well for view synthesis, but it does not enable relighting because it has no mechanism to disentangle the outgoing radiance of a surface into an incoming radiance and an underlying surface material  ... 
arXiv:2012.03927v1 fatcat:umht2bzi2jahxo7ds676g6uif4

Free-viewpoint Indoor Neural Relighting from Multi-view Stereo [article]

Julien Philip and Sébastien Morgenthaler and Michaël Gharbi and George Drettakis
2021 arXiv   pre-print
We introduce a neural relighting algorithm for captured indoors scenes, that allows interactive free-viewpoint navigation.  ...  We design a convolutional network around input feature maps that facilitate learning of an implicit representation of scene materials and illumination, enabling both relighting and free-viewpoint navigation  ...  ., originally in the space of each input camera) using imagebased rendering techniques so that the network can render arbitrary viewpoints at interactive frame rates.  ... 
arXiv:2106.13299v1 fatcat:iizcgmc7gjgidca4lftcnan62q

Materials for Masses: SVBRDF Acquisition with a Single Mobile Phone Image [article]

Zhengqin Li, Kalyan Sunkavalli, Manmohan Chandraker
2018 arXiv   pre-print
Our method images the surface under arbitrary environment lighting with the flash turned on, thereby avoiding shadows while simultaneously capturing high-frequency specular highlights.  ...  We propose a material acquisition approach to recover the spatially-varying BRDF and normal map of a near-planar surface from a single image captured by a handheld mobile phone camera.  ...  From a single image of a near planar surface captured with a flashenabled mobile phone camera under arbitrary lighting, our network recovers surface normals and spatially-varying BRDF parameters -diffuse  ... 
arXiv:1804.05790v1 fatcat:yhpmf3t6ezgr5kmpzvq7mxjihm

Intrinsic Textures for Relightable Free-Viewpoint Video [chapter]

James Imber, Jean-Yves Guillemaut, Adrian Hilton
2014 Lecture Notes in Computer Science  
The method is applied to relighting of free-viewpoint rendering from multiple view video capture. This demonstrates relighting with reproduction of fine surface detail.  ...  We introduce the concept of intrinsic textures, which are pixel-resolution surface textures representing the intrinsic appearance parameters of a scene.  ...  In particular, the ability to relight an actor's performance for seamless compositing into arbitrary real-world and computer-generated surroundings is highly desirable, and is termed Relightable Free-Viewpoint  ... 
doi:10.1007/978-3-319-10605-2_26 fatcat:5qxvqslu3bhnlfnozx5yguxyxm

Resurrect3D: An Open and Customizable Platform for Visualizing and Analyzing Cultural Heritage Artifacts [article]

Joshua Romphf, Elias Neuman-Donihue, Gregory Heyworth, Yuhao Zhu
2021 arXiv   pre-print
First, it provides an interactive cultural heritage toolbox, providing not only commonly used tools in cultural heritage such as relighting and material editing, but also the ability for users to create  ...  Art and culture, at their best, lie in the act of discovery and exploration.  ...  These include interactive measurement, interactive relighting material editing to reveal surface details, image analysis, and annotation tools.  ... 
arXiv:2106.09509v3 fatcat:y5gx7vnyebepfgzqbmvhqkxoey

Neural Light Transport for Relighting and View Synthesis [article]

Xiuming Zhang, Sean Fanello, Yun-Ta Tsai, Tiancheng Sun, Tianfan Xue, Rohit Pandey, Sergio Orts-Escolano, Philip Davidson, Christoph Rhemann, Paul Debevec, Jonathan T. Barron, Ravi Ramamoorthi (+1 others)
2020 arXiv   pre-print
The light transport (LT) of a scene describes how it appears under different lighting and viewing directions, and complete knowledge of a scene's LT enables the synthesis of novel views under arbitrary  ...  Qualitative and quantitative experiments demonstrate that our neural LT (NLT) outperforms state-of-the-art solutions for relighting and view synthesis, without separate treatment for both problems that  ...  Jacobs and Marc Levoy for their constructive comments on an initial dra of this paper. is work was funded in part  ... 
arXiv:2008.03806v2 fatcat:ifhs7lpufne2pf5twp62w2trja

Capturing Relightable Human Performances under General Uncontrolled Illumination

Guannan Li, Chenglei Wu, Carsten Stoll, Yebin Liu, Kiran Varanasi, Qionghai Dai, Christian Theobalt
2013 Computer graphics forum (Print)  
We first capture a multi-view sequence of an actor wearing arbitrary apparel and reconstruct a spatio-temporal coherent coarse 3D model of the performance using a marker-less tracking approach.  ...  Finally, the high-quality all-frequency illumination is utilized to reconstruct the spatially-varying BRDF of the surface.  ...  To solve for the reflectance at each surface point, we make use of the following assumptions: The surface of a human actor usually does not contain an arbitrary number of materials, but rather a set of  ... 
doi:10.1111/cgf.12047 fatcat:hsxhjqbjtndrzo3d3twnsp3e3m

Computer Vision Technology Applied to MR-Based Pre-visualization in Filmmaking [chapter]

Hideyuki Tamura, Takashi Matsuyama, Naokazu Yokoya, Ryosuke Ichikari, Shohei Nobuhara, Tomokazu Sato
2011 Lecture Notes in Computer Science  
Additionally, we developed a relighting technique for lighting design of MR-PreViz movie.  ...  Computer vision technologies are required for many aspects of MR-PreViz.  ...  Since this produces a conventional g3D surface geometry + textureh style output, we can render it from an arbitrary viewpoint even with other virtual objects.  ... 
doi:10.1007/978-3-642-22819-3_1 fatcat:muanh5qhlbem7df23tkbdqvtia
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