Updating "Angle-dependent spectral reflectance material dataset based on 945 nm time-of-flight camera measurements" with extended data to cover reflectance measurements mainly for vehicle varnish and moss rubber

An updated dataset based on angle-dependent spectral reflectance measurements taken for an angle range of 0 degrees to 80 degrees with 10 degrees incremental steps and pictures for most measurements of the whole dataset are presented in this article. It covers two new material types regarding the material classification scheme presented in the original paper [1]: vehicle varnish and moss rubber. Vehicle varnish samples are prepared on flat steel plates to enable proper angle-dependent acquisition of the data with the same angle adjustable measurement device already presented in the original paper. The moss rubber material has a behavior similar to a Lambertian reflector and thus serves for diffuse reflectance measurement purposes. The extended dataset, including the original dataset, is published open access on the open repository Zenodo with record number 8322076 in a new version 1.1.1 [2], and currently contains 314 measurements with the addition of 70 new varnish and moss rubber measurements. The new version of the dataset further includes pictures of most of the measurements to depict how the data were acquired. The pictures enable material mapping such as the link be-tween the measured data in the near infrared spectrum at a wavelength of lambda = 945 nm and the picture taken in the opti-cal spectrum. (c) 2023 The Author. Published by Elsevier Inc. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/ )