With the rapid development of the LED display industry, innovative elements continue to emerge, there are many new opportunities for development, and the application fields are increasing day by day. Among them, XR technology, as a hot topic this year, will soon become a major player in the professional audio-visual field. Shine. In recent years, the entry of major screen companies has caused a new wave of virtual production in the industry.
The reason why the LED display is widely used in virtual production is not only because it is more compatible with XR technology, but also because it has a better boost to the performance of actors' acting skills and the post-production of videos. XR video production with LED display screen as the background, first of all uses real-time rendering technology to restore the photo-level dynamic digital scene on the LED display screen, build the shooting scene, output the composite through the media server, and use the camera tracking system to locate the space and location Information, real-time mapping of the spatial relationship between the characters and the scene, real-time presentation and output of a virtual scene without blind spots, and in this real-time rendering of the shooting scene, actors can directly interact with the virtual and visible scene, this kind of physical reference Compared with the traditional performance without physical objects, the scene allows the actors to experience a more realistic sensory performance environment, allowing the actors to quickly enter the play.
In the traditional green-screen shooting environment, it often takes a lot of time to perform fine keying and repair the problem of color overflow. Compared with the traditional green screen, the LED display solves this problem. The shooting team can interact with the LED display in the created 3D environment. During this process, the shooting team can not only edit the content in real time. , It can also carry out precise tracking of pixels, and perform perspective correction on high-resolution rendered 3D images. After the accurate camera tracking system is added, the camera begins to move around the seamlessly combined real and virtual elements in the LED environment. Let the audience watching through the camera's perspective produce the illusion of fusion and immersion; secondly, since the shooting scene is generated by the LED video display, it supports importing conventional pictures, 360° panoramic pictures and videos, 3D models, and external camera signals into the studio to realize the scene Switching freely at any time, LED display stage technology and playback technology have greatly reduced the post-production time and difficulty for the visual special effects department, and the time cost and shooting cost of video production have also been greatly reduced; Moreover, the LED stage combined with XR technology is in The highlights, reflections and rebounds presented on the film reflective suits are more accurate. Therefore, the use of LED display screen combined with XR technology for shooting can make the director directly feel the real-time images on the spot, shorten the work flow, and greatly reduce the workload of the later stage. While improving production efficiency, it can also create more magical scenes according to the director's needs. In addition, virtual production solves the cost of crew transportation and environmental waiting costs for location shooting. Simply put, the crew can produce and modify the required environment at any time without waiting for the rain or sunset.
The virtual film and television production technology of LED display combined with XR technology has changed the traditional film production method and brought more possibilities and innovations to film production. With the rapid development of China's film industrialization process, this work system of virtual space expansion will be just around the corner, and the market demand for LED displays in this field will increase substantially.
