no code implementations • 1 May 2024 • Julia Guerrero-Viu, Milos Hasan, Arthur Roullier, Midhun Harikumar, Yiwei Hu, Paul Guerrero, Diego Gutierrez, Belen Masia, Valentin Deschaintre
Generative models have enabled intuitive image creation and manipulation using natural language.
no code implementations • 26 Mar 2024 • Julia Guerrero-Viu, J. Daniel Subias, Ana Serrano, Katherine R. Storrs, Roland W. Fleming, Belen Masia, Diego Gutierrez
Estimating perceptual attributes of materials directly from images is a challenging task due to their complex, not fully-understood interactions with external factors, such as geometry and lighting.
1 code implementation • 21 Sep 2023 • Kiseok Choi, Inchul Kim, Dongyoung Choi, Julio Marco, Diego Gutierrez, Min H. Kim
Existing time-resolved non-line-of-sight (NLOS) imaging methods reconstruct hidden scenes by inverting the optical paths of indirect illumination measured at visible relay surfaces.
no code implementations • 30 Aug 2023 • Diego Royo, Zesheng Huang, Yun Liang, Boyan Song, Adolfo Muñoz, Diego Gutierrez, Julio Marco
Time-resolved illumination provides rich spatio-temporal information for applications such as accurate depth sensing or hidden geometry reconstruction, becoming a useful asset for prototyping and as input for data-driven approaches.
no code implementations • 26 Jul 2023 • Diego Royo, Talha Sultan, Adolfo Muñoz, Khadijeh Masumnia-Bisheh, Eric Brandt, Diego Gutierrez, Andreas Velten, Julio Marco
Beyond single-corner NLOS imaging, we exploit the specular behavior of virtual mirrors to image objects hidden behind a second corner by imaging the space behind such virtual mirrors, where the mirror image of objects hidden around two corners is formed.
no code implementations • 25 Jul 2023 • Valentin Deschaintre, Julia Guerrero-Viu, Diego Gutierrez, Tamy Boubekeur, Belen Masia
We introduce text2fabric, a novel dataset that links free-text descriptions to various fabric materials.
1 code implementation • 9 Jul 2022 • Inseung Hwang, Daniel S. Jeon, Adolfo Muñoz, Diego Gutierrez, Xin Tong, Min H. Kim
Ellipsometry techniques allow to measure polarization information of materials, requiring precise rotations of optical components with different configurations of lights and sensors.
no code implementations • 20 Apr 2022 • Daniel Martin, Diego Gutierrez, Belen Masia
Human visual attention is a complex phenomenon that has been studied for decades.
no code implementations • 15 Jul 2021 • Manuel Lagunas, Xin Sun, Jimei Yang, Ruben Villegas, Jianming Zhang, Zhixin Shu, Belen Masia, Diego Gutierrez
We present a single-image data-driven method to automatically relight images with full-body humans in them.
no code implementations • ICCV 2021 • Julio Marco, Adrian Jarabo, Ji Hyun Nam, Xiaochun Liu, Miguel Ángel Cosculluela, Andreas Velten, Diego Gutierrez
The light transport matrix (LTM) is an instrumental tool in line-of-sight (LOS) imaging, describing how light interacts with the scene and enabling applications such as relighting or separation of illumination components.
no code implementations • 7 Jan 2021 • Manuel Lagunas, Ana Serrano, Diego Gutierrez, Belen Masia
In this work, we perform a comprehensive and systematic analysis of how the interplay of geometry, illumination, and their spatial frequencies affects human performance on material recognition tasks.
1 code implementation • 4 May 2019 • Manuel Lagunas, Sandra Malpica, Ana Serrano, Elena Garces, Diego Gutierrez, Belen Masia
We present a model to measure the similarity in appearance between different materials, which correlates with human similarity judgments.
no code implementations • 1 Feb 2019 • Manuel Lagunas, Elena Garces, Diego Gutierrez
Selecting an optimal set of icons is a crucial step in the pipeline of visual design to structure and navigate through content.
no code implementations • 17 Oct 2018 • Xiaochun Liu, Ibón Guillén, Marco La Manna, Ji Hyun Nam, Syed Azer Reza, Toan Huu Le, Diego Gutierrez, Adrian Jarabo, Andreas Velten
Since imaging information cannot be recovered from the irradiance arriving at the relay surface, we introduce the concept of the phasor field, a mathematical construct representing a fast variation in irradiance.
no code implementations • 13 Jun 2018 • Ana Serrano, Elena Garces, Diego Gutierrez, Belen Masia
Video capture is limited by the trade-off between spatial and temporal resolution: when capturing videos of high temporal resolution, the spatial resolution decreases due to bandwidth limitations in the capture system.
no code implementations • 13 Jun 2018 • Ana Serrano, Felix Heide, Diego Gutierrez, Gordon Wetzstein, Belen Masia
Current HDR acquisition techniques are based on either (i) fusing multibracketed, low dynamic range (LDR) images, (ii) modifying existing hardware and capturing different exposures simultaneously with multiple sensors, or (iii) reconstructing a single image with spatially-varying pixel exposures.
no code implementations • 6 Mar 2017 • Victor Arellano, Diego Gutierrez, Adrian Jarabo
These works combine ultrafast imaging systems with computation, which back-projects the recorded space-time signal to build a probabilistic map of the hidden geometry.
no code implementations • 23 Feb 2017 • Quercus Hernandez, Diego Gutierrez, Adrian Jarabo
In this work we describe a computational model to simulate the behaviour of SPAD sensors, aiming to provide a realistic camera model for time-resolved light transport simulation, with applications on prototyping new reconstructions techniques based on SPAD time-of-flight data.
no code implementations • 13 Dec 2016 • Vincent Sitzmann, Ana Serrano, Amy Pavel, Maneesh Agrawala, Diego Gutierrez, Belen Masia, Gordon Wetzstein
Understanding how people explore immersive virtual environments is crucial for many applications, such as designing virtual reality (VR) content, developing new compression algorithms, or learning computational models of saliency or visual attention.
no code implementations • 3 Nov 2016 • Adrian Jarabo, Belen Masia, Julio Marco, Diego Gutierrez
Transient imaging has recently made a huge impact in the computer graphics and computer vision fields.
no code implementations • 15 Aug 2016 • Elena Garces, Jose I. Echevarria, Wen Zhang, Hongzhi Wu, Kun Zhou, Diego Gutierrez
We present a method to automatically decompose a light field into its intrinsic shading and albedo components.