Group actions in computational anatomy

Group actions in computational anatomy refer to the mathematical framework used to model and analyze the variability of shapes and anatomical structures using group theory. In this context, a group is a set of transformations (such as rotations, translations, and scalings) that can be applied to anatomical objects (like organs or tissues) within a normalized space. ### Key Concepts: 1. **Shapes and Variability**: Anatomical structures can vary due to biological differences between individuals, developmental processes, or pathological changes.