Reconstruction of somatosensory interaction in Fuzhou Shadow Play based on depth image recognition

Objective According to the characteristics of Fuzhou Shadow Play, digital reconstruction and innovative display are carried out through somatosensory interaction to enhance the audience's senses of participation and immersion, provide a new technical path for Intangible Cultural Heritage Inheritance and digital protection, and make the audience feel the charm of Chinese excellent traditional cultures. Methods On Microsoft Kinect 2.0 equipped with a CMOS depth sensor, depth data are acquired through the time-of-flight (TOF) ranging algorithm, which is based on the two-way ranging information technology of asynchronous transceivers. By collecting the depth image within the field-of-view of an infrared camera, the sensor uses a high-speed generated image stream with depth information to reproduce the scene in three dimensions. The optimized preprocessing shortens the evaluation of images with depth information, which is used to identify various parts of the human body. In the depth image, a specific mask area is created for each tracked viewer. Each pixel in the mask is transmitted to a machine learning system to identify various parts of the human body. Each recognized part is marked with the possibility of a specific pixel for the part, and a complete skeleton system is generated according to the coordinates of the 20 joint points tracked. Then the three-dimensional space data of the human body limbs are sent to the computer. Results Subsequent interactive reconstruction shows the human body movement and the joint point shadow puppet model movement match well, without model interspersion or bone damage. Conclusions The threedimensional digital preservation of shadow puppet entity realized by the construction of a joint point shadow puppet model eliminates time and space limitations against preservation of shadow puppet entity, highlights the immersion experience and reconstruction of drama time and space, creates a new interactive relationship of traditional drama performance, and changes the way of performing, viewing and creating Fuzhou shadow puppet art.