Quantifying Aesthetic Preferences for Diamond Videos Using Image Features

Abstract

This study presents a method for quantifying the aesthetic preference of diamond videos using image features. First, we introduce an evaluation method for three types of sparkle (brilliance, scintillation, and dispersion) based on the two-dimensional discrete Fourier transform. Next, we verified the effectiveness of the proposed method by analyzing videos of 12 types of diamonds with varying refractive indices and dispersion values. As a result, the adjusted coefficient of determination R² values from the multiple regression analyses of the three types of sparkle were 0.931, 0.920, and 0.888, respectively, indicating the applicability of the proposed method. Furthermore, the adjusted R² value regarding aesthetic preference was 0.935. The refractive index and dispersion values increased the sensory evaluation values of brilliance/scintillation and dispersion, respectively, and the closer these values were to the actual diamond values, the more that of aesthetic preference became. These findings highlight the potential for quantifying the aesthetic preference of diamond videos.