Hierarchical Three-Dimension Mesh Model Sharing

A hierarchical three-dimension mesh model sharing method is proposed. The method, also called (t₁, t₂,_⋯, t_r, n)-threshold sharing, encodes an original three-dimension mesh model into n model-shares, where t₁ ≤ t₂ ≤ _⋯ ≤ t_r ≤ n. Any t₁ model-shares provide the least quantity for revealing the smallest part of the original three-dimension mesh model. More model-shares are received, the revealed part becomes larger. Because t_r model-shares are received the original three-dimension mesh model is revealed with very little distortion, the method is thus highly fault-tolerant.