The four basic geometric objects of points, point pairs, circles and spheres correspond to outer product null-spaces constructed
by conformal points in conformal geometric algebra. Wedging with the infinity point we get four flat objects: finite-infinity
point pairs, lines, planes and the whole 5D space. We show that all these basic geometric objects have the
same algebraic structure. We then develop a single general algebraic method to quantify and interpolate the
relative pose of the eight different classes of objects. As an explicit example we finally
apply our framework to the conformation of organic macromolecules.
Mathematics Subject Classification (2000). Primary 15A66 - Secondary 62M45, 62H11, 92C40, 68T40
Keywords. Geometric algebra - conformal geometric algebra - carrier - Euclidean objects - pose - molecular conformation - tracking
This work was completed with the support of COE FCS (Nagoya).
Received: November, 2007. Accepted: February, 2008.