This is the summary of application.
Firstly, 5-tile encoding is proposed. Local structure ...
For example, the spatial broken line shown on the left is approximated by a folded tetrahedron sequence as shown in the middle. And we obain the sequence of UDDUD as its code.
Secondly, as an application, 5-tile encoding of ... is proposed.
For example, the local structure of a protein is encoded as shown below. In particular, "5-tile code" could distinguish local features, such as strand, turn, ..., from each other.