Figure 3
From: Application of 3D Zernike descriptors to shape-based ligand similarity searching
The graph shows the comparison of the 3DZD invariants for the camphor and jasmine fragrances. The curves depict the magnitudes of the moments and have plotted for an order 12 expansion. Similarity of the invariants for odour molecules of the camphor class explains why the 3DZD clusters all the camphors together. The two jasmine compounds however have different magnitudes for some of the moments, and result in a smaller similarity value (the correlation coefficient of 0.78).