Effective Interactive Visualization of Neural Relightable Images in a Web-based Multi-layered Framework
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Date
2023
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
Relightable images created from Multi-Light Image Collections (MLICs) are one of the most commonly employed models for interactive object exploration in cultural heritage. In recent years, neural representations have been shown to produce higherquality images, at similar storage costs, with respect to the more classic analytical models such as Polynomial Texture Maps (PTM) or Hemispherical Harmonics (HSH). However, their integration in practical interactive tools has so far been limited due to the higher evaluation cost, making it difficult to employ them for interactive inspection of large images, and to the difficulty in integration cost, due to the need to incorporate deep-learning libraries in relightable renderers. In this paper, we illustrate how a state-of-the-art neural reflectance model can be directly evaluated, using common WebGL shader features, inside a multiplatform renderer. We then show how this solution can be embedded in a scalable framework capable to handle multi-layered relightable models in web settings. We finally show the performance and capabilities of the method on cultural heritage objects.
Description
CCS Concepts: Computing methodologies → Reflectance modeling; Graphics systems and interfaces; Applied computing → Arts and humanities
@inproceedings{10.2312:gch.20231158,
booktitle = {Eurographics Workshop on Graphics and Cultural Heritage},
editor = {Bucciero, Alberto and Fanini, Bruno and Graf, Holger and Pescarin, Sofia and Rizvic, Selma},
title = {{Effective Interactive Visualization of Neural Relightable Images in a Web-based Multi-layered Framework}},
author = {Righetto, Leonardo and Bettio, Fabio and Ponchio, Federico and Giachetti, Andrea and Gobbetti, Enrico},
year = {2023},
publisher = {The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-217-2},
DOI = {10.2312/gch.20231158}
}