Data associated to the paper: "Imaging device to measure the reflective and transmissive part of isotropic BSSRDF", M. Gerardin, M. Paulin, R. Pacanowski, Optics Express, 2024.

Abstract

Appearance of translucent materials is described by the Bidirectional Scattering-Surface Reflectance Distribution Function (BSSRDF) defined as the ratio of the spectral radiance observed from a specific direction at a given location of the material surface and the incident spectral flux at another location on the material surface from a specific direction. When observation is performed on the front surface, we refer to BSSRDF. When it is performed on the back surface, we refer to BSSTDF (Bidirectional Scattering-Surface Transmittance Distribution Function). Traceable measurements of such radiometric quantity require a fully calibrated measurement device, such as the one developped in the paper.

Content of the dataset

This dataset provides the data that were acquired and used to demonstrate the setup perfomance. It contains the data relative to the calibration of both the light source and the camera (cf. Section 4 of the paper), as well as the raw measurements obtained on two translucent samples (cf. Sections 6.1 and 6.2 of the paper). We also provide the processed data that were used for the visualizations (cf. Sections 6.3 and 6.4 of the paper).

How to navigate in the dataset

To simplify navigation among the numerous files in this repository, the data is organized according to a tree structure and identified by labels. The tree structure is described below. The labels associated with each fodler/file are specified by "Label: "label_name" ".

Requirements
The full dataset requires about 3.2TB to be stored.