Relic Repairing Using Local Reflectional Symmetry

Cultural relics are often suffered different degrees of damage during their centuries of inheriting. Completing the missing parts, which is called restoration, is one of the key steps of digital cultural relics repairing. To recover the original shape of the missing parts, historical information and shape context should be analyzed. This paper proposes a local reflection symmetry detection algorithm for digital restoration of relics. The local reflection symmetry axis of the incomplete 3D model can be calculated automatically and explicitly. With the symmetry information, the missing parts can be repaired in an effective and trivial manner.