%0 Journal Article %A Richard Brown %A Stephen Marsland %A Robert McLachlan %T Differential Invariant Signatures for Planar Lie Group Transformations with Application to Images %J Journal of Lie Theory %D 2022 %P 709-736 %V 32 %N 3 %U http://geodesic.mathdoc.fr/item/JOLT_2022_32_3_a4/ %F JOLT_2022_32_3_a4