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- research-articleJuly 2023
Towards Material Digitization with a Dual-scale Optical System
- Elena Garces,
- Victor Arellano,
- Carlos Rodriguez-Pardo,
- David Pascual-Hernandez,
- Sergio Suja,
- Jorge Lopez-Moreno
ACM Transactions on Graphics (TOG), Volume 42, Issue 4Article No.: 152, Pages 1–13https://doi.org/10.1145/3592147Existing devices for measuring material appearance in spatially-varying samples are limited to a single scale, either micro or mesoscopic. This is a practical limitation when the material has a complex multi-scale structure. In this paper, we present a ...
- research-articleDecember 2021
Generative modelling of BRDF textures from flash images
ACM Transactions on Graphics (TOG), Volume 40, Issue 6Article No.: 284, Pages 1–13https://doi.org/10.1145/3478513.3480507We learn a latent space for easy capture, consistent interpolation, and efficient reproduction of visual material appearance. When users provide a photo of a stationary natural material captured under flashlight illumination, first it is converted into ...
- research-articleAugust 2020
Single-shot high-quality facial geometry and skin appearance capture
ACM Transactions on Graphics (TOG), Volume 39, Issue 4Article No.: 81, Pages 81:1–81:12https://doi.org/10.1145/3386569.3392464We propose a new light-weight face capture system capable of reconstructing both high-quality geometry and detailed appearance maps from a single exposure. Unlike currently employed appearance acquisition systems, the proposed technology does not require ...
- research-articleJuly 2018
Single-image SVBRDF capture with a rendering-aware deep network
ACM Transactions on Graphics (TOG), Volume 37, Issue 4Article No.: 128, Pages 1–15https://doi.org/10.1145/3197517.3201378Texture, highlights, and shading are some of many visual cues that allow humans to perceive material appearance in single pictures. Yet, recovering spatially-varying bi-directional reflectance distribution functions (SVBRDFs) from a single image based ...
- research-articleJuly 2018
Deep image-based relighting from optimal sparse samples
ACM Transactions on Graphics (TOG), Volume 37, Issue 4Article No.: 126, Pages 1–13https://doi.org/10.1145/3197517.3201313We present an image-based relighting method that can synthesize scene appearance under novel, distant illumination from the visible hemisphere, from only five images captured under pre-defined directional lights. Our method uses a deep convolutional ...
- research-articleJuly 2016
Reflectance modeling by neural texture synthesis
ACM Transactions on Graphics (TOG), Volume 35, Issue 4Article No.: 65, Pages 1–13https://doi.org/10.1145/2897824.2925917We extend parametric texture synthesis to capture rich, spatially varying parametric reflectance models from a single image. Our input is a single head-lit flash image of a mostly flat, mostly stationary (textured) surface, and the output is a tile of ...
- research-articleJuly 2015
Two-shot SVBRDF capture for stationary materials
ACM Transactions on Graphics (TOG), Volume 34, Issue 4Article No.: 110, Pages 1–13https://doi.org/10.1145/2766967Material appearance acquisition usually makes a trade-off between acquisition effort and richness of reflectance representation. In this paper, we instead aim for both a light-weight acquisition procedure and a rich reflectance representation ...
- research-articleJuly 2013
Practical SVBRDF capture in the frequency domain
ACM Transactions on Graphics (TOG), Volume 32, Issue 4Article No.: 110, Pages 1–12https://doi.org/10.1145/2461912.2461978Spatially-varying reflectance and small geometric variations play a vital role in the appearance of real-world surfaces. Consequently, robust, automatic capture of such models is highly desirable; however, current systems require either specialized ...
- research-articleDecember 2011
Estimating dual-scale properties of glossy surfaces from step-edge lighting
SA '11: Proceedings of the 2011 SIGGRAPH Asia ConferenceArticle No.: 172, Pages 1–12https://doi.org/10.1145/2024156.2024206This paper introduces a rapid appearance capture method suited for a variety of common indoor surfaces, in which a single photograph of the reflection of a step edge is used to estimate both a BRDF and a statistical model for visible surface geometry, ...
- research-articleDecember 2011
Estimating dual-scale properties of glossy surfaces from step-edge lighting
ACM Transactions on Graphics (TOG), Volume 30, Issue 6Pages 1–12https://doi.org/10.1145/2070781.2024206This paper introduces a rapid appearance capture method suited for a variety of common indoor surfaces, in which a single photograph of the reflection of a step edge is used to estimate both a BRDF and a statistical model for visible surface geometry, ...