Fig. 2From: Enhanced parametric shape descriptions in PGD-based space separated representationsFour-modes (\(i=1,2,3,4\)) SAR of the NURBS-based mapping: a \(\varvec{M}^T_1(\xi ) \varvec{X}_{1i}\); b \(\varvec{M}^T_2(\eta ) \varvec{X}_{2i}\); c \(\varvec{M}^T_1(\xi ) \varvec{Y}_{1i}\); and d \(\varvec{M}^T_2(\eta ) \varvec{Y}_{2i}\)Back to article page