search for: rhombicuboctahedron

...han PVQ. What I wound up writing is something I call an "octagon quantizer. In two dimensions, PVQ uses a "diamond" (square) shape. An octagon code (OVQ) uses an octagon, which is a much better approximation to the circle. In two dimensions, PVQ uses an octahedron, and OVQ uses a rhombicuboctahedron, which is (again) a much better approximation to the sphere. In OVQ, the resolution parameter K is replaced by two (int) parameters A and B. Quantization then proceeds very simply: all components greater than B are subjected to PVQ (after subtracting B) with resolution A, and all components less...