A5076415310- Advanced Optical Sensing Technologies
- Computer Graphics and Visualization Techniques
- Random lasers and scattering media
- Optical Coherence Tomography Applications
- Advanced Fluorescence Microscopy Techniques
- Image and Video Quality Assessment
- Cultural Heritage Materials Analysis
- Pigment Synthesis and Properties
- Geophysics and Sensor Technology
- Color Science and Applications
- Microwave Imaging and Scattering Analysis
- Optical measurement and interference techniques
- Advanced Vision and Imaging
Universidad de Zaragoza
2017-2020
Universidad Rey Juan Carlos
2017
The unique and visually mesmerizing appearance of pearlescent materials has made them an indispensable ingredient in a diverse array applications including packaging, ceramics, printing, cosmetics. In contrast to their natural counterparts, such synthetic examples pearlescence are created by dispersing microscopic interference pigments within dielectric resin. resulting space comprises enormous range different phenomena ranging from smooth lustrous reminiscent pearl highly directional...
Abstract We present new methods for uniformly sampling the solid angle subtended by a disk. To achieve this, we devise two novel area‐preserving mappings from unit square [0,1] 2 to spherical ellipse (i.e. projection of disk onto sphere). These allow low‐variance stratified direct illumination disk‐shaped light sources. discuss how efficiently incorporate our into production renderer and demonstrate quality maps, showing significantly lower variance than previous work.
Abstract In this work, we introduce a novel algorithm for transient rendering in participating media. Our method is consistent, robust and able to generate animations of time‐resolved light transport featuring complex caustic paths We base our on the observation that spatial continuity provides an increased coverage temporal domain, generalize photon beams transient‐state. extend stead‐state beam radiance estimates include domain. Then, develop progressive variant approach which provably...
Non-Line-of-Sight (NLOS) imaging allows to observe objects partially or fully occluded from direct view, by analyzing indirect diffuse reflections off a secondary, relay surface. Despite its many potential applications, existing methods lack practical usability due several shared limitations, including the assumption of single scattering only, occlusions, and Lambertian reflectance. We lift these limitations transforming NLOS problem into virtual Line-Of-Sight (LOS) one. Since information...
Non-line-of-sight (NLOS) imaging aims to visualize occluded scenes by exploiting indirect reflections on visible surfaces. Previous methods approach this problem inverting the light transport hidden scene, but are limited isolated, diffuse objects. The recently introduced phasor fields framework computationally poses NLOS reconstruction as a virtual line-of-sight (LOS) problem, lifting most assumptions about scene. In work we complement recent theoretical analysis of field-based...
In this work we introduce a novel algorithm for transient rendering in participating media. Our method is consistent, robust, and able to generate animations of time-resolved light transport featuring complex caustic paths We base our on the observation that spatial continuity provides an increased coverage temporal domain, generalize photon beams transient-state. extend beam steady-state radiance estimates include domain. Then, develop progressive version spatio-temporal density...