RT Journal Article SR Electronic T1 Methods for High Fidelity Spectral Data Collection for Generating Ground Truth Data for Simulated Tissues JF bioRxiv FD Cold Spring Harbor Laboratory SP 2020.02.25.964924 DO 10.1101/2020.02.25.964924 A1 Alex T. Gong A1 Arjun Dulal A1 Matthew M. Crane A1 Troy E. Reihsen A1 Robert M. Sweet A1 Alexander R. Mendenhall YR 2020 UL http://biorxiv.org/content/early/2020/02/26/2020.02.25.964924.abstract AB Our research is focused on creating and simulating hyper-realistic artificial human tissue analogues. Generation and simulation of macroscopic biological material depends upon accurate ground-truth data on spectral properties of materials. Here, we developed methods for high fidelity spectral data collection using two differently colored simulated skin tissue samples and a portable spectral imaging camera. Using the standard procedure, we developed, we quantified the reproducibility of the spectral image signatures of the two synthetic skin samples under natural and artificial lighting conditions commonly found in clinical settings. We found high coefficients of determination for all measures taken under the same lighting. As expected, we found the spectral image signature of each sample was dependent on the illumination source. Our results confirm that illumination spectra data should be included with spectral image data. The high-fidelity methods for spectral image data collection we developed here should facilitate accurate collection of spectral image signature data for gross biological samples and synthetic materials collected under the same illumination source.