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Found 20 papers, 3 papers with code
Sparse Ellipsometry: Portable Acquisition of Polarimetric SVBRDF and Shape with Unstructured Flash Photography
Ellipsometry techniques allow to measure polarization information of materials, requiring precise rotations of optical components with different configurations of lights and sensors.
A Similarity Measure for Material Appearance
We present a model to measure the similarity in appearance between different materials, which correlates with human similarity judgments.
Self-Calibrating, Fully Differentiable NLOS Inverse Rendering
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.
Convolutional Sparse Coding for High Dynamic Range Imaging
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.
Convolutional sparse coding for capturing high speed video content
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.
How do people explore virtual environments?
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.
Fast Back-Projection for Non-Line of Sight Reconstruction
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.
Intrinsic Light Field Images
We present a method to automatically decompose a light field into its intrinsic shading and albedo components.
A Computational Model of a Single-Photon Avalanche Diode Sensor for Transient Imaging
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.
Recent Advances in Transient Imaging: A Computer Graphics and Vision Perspective
Transient imaging has recently made a huge impact in the computer graphics and computer vision fields.
Virtual Wave Optics for Non-Line-of-Sight Imaging
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.
Learning icons appearance similarity
Selecting an optimal set of icons is a crucial step in the pipeline of visual design to structure and navigate through content.
The joint role of geometry and illumination on material recognition
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.
Virtual Light Transport Matrices for Non-Line-Of-Sight Imaging
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.
Single-image Full-body Human Relighting
We present a single-image data-driven method to automatically relight images with full-body humans in them.
A Probabilistic Time-Evolving Approach to Scanpath Prediction
Human visual attention is a complex phenomenon that has been studied for decades.
The Visual Language of Fabrics
We introduce text2fabric, a novel dataset that links free-text descriptions to various fabric materials.
Virtual Mirrors: Non-Line-of-Sight Imaging Beyond the Third Bounce
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.
Structure-Aware Parametric Representations for Time-Resolved Light Transport
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.
Predicting Perceived Gloss: Do Weak Labels Suffice?
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.
