# Application of Three-Dimensional Vision Technology in Dance
## 3 Application of 3D Vision Technology in the Dance Field
### Dance and Stage Design
#### 3.1.1 Pseudo-Holographic 3D Vision Technology  
At the Tencent WE annual conference, the creative team Blackbow combined digital visualization, underwater filming, high-speed slow-motion photography, holographic projection, and AR to create a dance opening show that intermingled virtual and reality [52]. The linkage of the 3D vision technology and dancers created a sense of art and technology in which the real and the virtual were intertwined and brought the audience an immersive visual feast. Through 3D mapping multimedia technology, a multi-dimensional space is shaped within the limited space of the stage. The time is materialized in abstract concepts and flows in parallel and interlaced. The British holographic creative team Musion 3D utilized holographic projection technology to arrange a dance together across time for the 52-year-old ballet dancer [PERSON] and her at 19 years old [53]. In the artwork, the dancer's image at the age of 19 is presented in the form of holographic projection, mainly realized by using the effects of optical reflection, refraction, shadow, movement, contrast, etc. The flexible application of 3D holographic projection technology brings a new and wonderful experience for the dancer and the audience. [PERSON] collaborated on a dance performance with virtual robots in the well-known BBC dance reality show _Strictly Come Dancing_[54]. To realize the mixed reality performance, the professional special effects staff created virtual dancers and used Unreal Engine and Xsens MVN motion capture systems for real-time dance recording. With the music playing, the virtual dancers joined the dance performance, bringing a wonderful show to the audience. [PERSON] brought his holographic dance artwork _Dream Shadow Qin Island_ to the Qingdao Film Expo [55]. Multiple illusory and beautiful scenes are constructed by the holographic screen in the dance performance, and they change with the development of the dance content and emotion. The holographic projection technology can realize the rapid switching of the stage scenes, making the dance performance coherent and smooth so that the audience can better feel the profound emotions contained in the dance. Moment Factory, a Canadian new media art creative team, designed a pseudo-holographic stage play, _Keren_, based on traditional Japanese elements [56]. The stage design utilizes a large, covered projection screen and movable stage projection equipment to construct a magical world that is both real and fake. The performance shows various thematic dance performances such as ukiyo-e, ninja, shugenja, ghosts, and monsters were staged with the switching of scenes and light pro-jections. The entire performance is presented through the dancers' body language, and the presence of pseudo-holographic projection technology makes the dance content and scene well-integrated, creating an immersive and surprising stage for the audi-ence  
_Silk Road Flowers and Rain_ is a large-scale national stage drama based on Dunhuang frescoes that audiences worldwide have always loved. When holographic projection technology is combined with this classic stage drama, it creates a classic dance work in which science and technology coexist with art through live shooting, stage restoration, digital mapping technology, and holographic projection technology. It allows for the audiences to view the prosperous scene of the Silk Road back then in an immersive way,experience warm and simple national customs, and promote the history and cultural treasures of the Chinese nation [57]. The application of pseudo-holographic 3D vision technology in stage performance has matured. With 3D vision technology, the stage background, props, and dancers can be designed and presented. Dancers can interact with the virtual elements and utilize them to convey the performance intention and inner emotion more clearly, creating more fascinating visual effects and bringing strong visual impact and artistic enjoyment to the audience.