Furthermore, the real-time animation brought by the upgrade of the virtual engine is easy to use and scalable and gradually reduces the dependence on hardware. Recently, with the development of display technology, motion capture, and computer-generated imagery (CGI), multiple high-definition (HD) screens such as quality LED screens are being used as impressive replacements for traditional green screens, enabling producers to capture both live action and real-time rendered environments and objects in camera together, as shown in Figure 1(b). The appearances of the foreground and the background are inconsistent. (b) Multiple HD screen-based virtual studio. The host cannot directly see the virtual elements. However, this leads to the fact that characters cannot directly see the virtual elements in the studio, and therefore, the interaction with the virtual elements can only rely on imagination, which will inevitably cause problems such as the lack of the sense of presence of characters, resulting in unnatural program effect.ĭifferent virtual studios. The main feature of a green screen-based studio is to film or photograph characters and objects against a single-color background (usually blue or green) and then synthesize a virtual background (shown in Figure 1(a)). Compared with the traditional studio, it requires less space but is more universal, providing producers with freer and broader creative space. It allows the combination of people or other real objects and computer-generated environments and objects, which makes the whole studio no longer limited to traditional equipment such as site layout, lighting effects, and stage properties. Virtual studio technology based on chroma keying has set off a revolution in the film and television production industry in the past few decades. We also demonstrate our system with a CAVE system.
Experimental result on real composite images shows that our network is superior to the state-of-the-art image harmonization method under the task of portrait harmonization. Our portrait harmonization network does not need any auxiliary foreground mask and works in an end-to-end manner, which meets the postprocessing requirements for our virtual studio. In addition, we propose a mask-free portrait harmonization network to make sure that the appearances of the foreground region and the background are consistent. Besides using traditional computer graphics like other similar systems, our system enables to capture panoramic video from the real world as the background and project it onto multiple HD screens, so as to recreate the scene in the studio. In this paper, we propose a new virtual studio system based on the recent emerging technology using multiple high-definition (HD) screens. However, the existing green screen-based virtual studio limits the visual effects just in postproduction. Virtual studio technology allows producers to combine live-action footage and computer-generated imagery and has promoted the development of film and television industry.
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