Abstract
In this paper, an interesting video combination framework was established based on Unreal Engine 4. By substituting the green screen image with panoramic videos, our framework could produce lifelike synthetic videos in which the foreground is the portrait captured by real-time TV cameras whereas the background is a pseudo scenario generated by previously captured panoramic videos. The pseudo background updates itself from the panoramic video according to the pose information of the TV camera so that the portrait looks as if immersed into the pseudo scenario rather than the green screen. Our proposed framework could be applied not only in virtual studios but also in cellphone applications, e.g., given a previously captured panoramic video of a schoolyard, users could shoot a video by their front cellphone camera before a green screen. The output is a synthetic video which seems as if the users are in the schoolyard, as the users rotate their camera, the schoolyard background also moves.
Highlights
The last decades have been marked by the development of the digital visual processing techniques
VIDEO COMBINATION FRAMEWORK FOR TV STUDIO The type of TV camera we use is RED SCARLET X, and the Unreal Engine 4 (UE4) is deployed on a 16G RAM, intel i7 CPU 2.4GHz server
We found that when the TV camera moves, the character in the foreground seems like ‘‘floating’’ in the panoramic video
Summary
The last decades have been marked by the development of the digital visual processing techniques. Nowadays digital visual information, such as video, image, and so on has been involved in nearly everywhere of our daily life. People have been used to accessing large amount of multimedia resources whenever and wherever they want; what’s more, they pursuit clearer, more real and more exotic experience when viewing multi-media resources Such desire from consumers results into numerous advanced techniques, e.g., 4K [1] and 8K ultra high definition technique could provide clearer videos; High Dynamic Range (HDR) [2] technique could help to provide videos look as if in the real world rather than in the screen, amongst which, the Virtual studio [3], [4] technology is an energetic direction that expands a lot more expression forms for TV program and film producing.
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