Creation and Application of Cultural Digital Overlay Model: Taking Quanzhou String Puppet Show as an Example

The digital transformation of intangible cultural heritage (ICH) has become an important means to protect and spread traditional culture. This study constructs a cultural digital overlay model (CDOM) that integrates digital technology, design aesthetics and cultural values, and applies it in the digital display of Quanzhou traditional string puppet show. The study shows that by adopting 3D modeling, motion capture and metadata-driven design, the characteristics and performance skills of puppets are digitized, and the use of multi-sensory and mixed reality technologies enhances the audience's participation, creates an immersive interactive experience, and effectively reinterprets traditional art in a contemporary way.