Publications

Authors:

Righetto, Leonardo; Bettio, Fabio; Ponchio, Federico; Giachetti, Andrea; Gobbetti, Enrico

Title:

Effective Interactive Visualization of Neural Relightable Images in a Web-based Multi-layered Framework

Year:

2023

Type of item:

Contributo in atti di convegno

Tipologia ANVUR:

Contributo in Atti di convegno

Language:

Inglese

Congresso:

GCH 2023 - Eurographics Workshop on Graphics and Cultural Heritage

Place:

Lecce, Italy

Period:

4 - 6 September 2023

Page numbers:

57-66

Keyword:

Reflectance; MLIC

Short description of contents:

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.

Web page:

https://diglib.eg.org/handle/10.2312/gch20231158

Product ID:

138784

Handle IRIS:

11562/1123166

Last Modified:

March 29, 2024

Bibliographic citation:

Righetto, Leonardo; Bettio, Fabio; Ponchio, Federico; Giachetti, Andrea; Gobbetti, Enrico, Effective Interactive Visualization of Neural Relightable Images in a Web-based Multi-layered Framework  in GCH 2023 - Eurographics Workshop on Graphics and Cultural Heritage , Proceedings of "GCH 2023 - Eurographics Workshop on Graphics and Cultural Heritage" , Lecce, Italy , 4 - 6 September 2023 , 2023 , pp. 57-66

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