Relativistic Effects for Time-Resolved Light Transport

Jarabo, Adrian (Universidad de Zaragoza) ; Masia, Belen (Universidad de Zaragoza) ; Velten, Andreas ; Barsi, Christopher ; Raskar, Ramesh ; Gutierrez, Diego (Universidad de Zaragoza)

Resumen: We present a real-time framework which allows interactive visualization of relativistic effects for time-resolved light transport. We leverage data from two different sources: real-world data acquired with an effective exposure time of less than 2 picoseconds, using an ultra-fast imaging technique termed femto-photography, and a transient renderer based on ray-tracing. We explore the effects of time dilation, light aberration, frequency shift and radiance accumulation by modifying existing models of these relativistic effects to take into account the time-resolved nature of light propagation. Unlike previous works, we do not impose limiting constraints in the visualization, allowing the virtual camera to explore freely a reconstructed 3D scene depicting dynamic illumination. Moreover, we consider not only linear motion, but also acceleration and rotation of the camera. We further introduce, for the first time, a pinhole camera model into our relativistic rendering framework, and account for subsequent changes in focal length and field of view as the camera moves through the scene.

Idioma: Inglés

DOI: 10.1111/cgf.12604

Año: 2015

Publicado en: COMPUTER GRAPHICS FORUM 34, 8 (2015), 1-12
ISSN: 0167-7055

Factor impacto JCR: 1.542 (2015)

Categ. JCR: COMPUTER SCIENCE, SOFTWARE ENGINEERING rank: 17 / 106 = 0.16 (2015) - Q1 - T1

Factor impacto SCIMAGO: 0.806 - Computer Networks and Communications (Q1) - Computer Graphics and Computer-Aided Design (Q1)

Financiación: info:eu-repo/grantAgreement/EC/FP7/288914/EU/Vanquishing fear and apathy through E-inclusion: \nPersonalised and populated Realistic Virtual Environments for clinical, home and mobile platforms/VERVE
Financiación: info:eu-repo/grantAgreement/ES/MINECO/Lightslice

Tipo y forma: Article (Published version)

Área (Departamento): Área Lenguajes y Sistemas Inf. (Dpto. Informát.Ingenie.Sistms.)