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Abstract: Color reproduction of virtual productions -
Color calibration of a virtual production with in-camera effects, as well as a comparison of applications for real-time color correction of camera image and virtual set extension [DE]
Alexander Kühnlein, Color reproduction of virtual productions -
Color calibration of a virtual production with in-camera effects, as well as a comparison of applications for real-time color correction of camera image and virtual set extension, Hochschule Düsseldorf, Bachelor thesis, 09.08.2023.
In recent years, the advancing development of real time applications such as the
Unreal Engine have led to an increasing popularity of virtual production.
In particular so called in-camera VFX, which utilize video walls for background
imaging offer many new oppor- tunites for feature films and television
productions. This advanced technique allows the rendering of a virtual environment
on a video wall in real time and which is then cap- tured by a camera. Although
it may seem like a very innovative approach to filmmaking, background projections
are a well established method and have been used for many years.
Due to the high interest in this method, there is also a strong demand in solving
several technical realated challenges that need to be addressed when using a
camera to capture a video wall. This includes the colour reproduction of the
virtual content that is displayed and captured. Although both the camera and
video wall are capable of capturing and displaying colours in a faithful way,
there are issues that can lead to a inaccurate colour reproduction.
Therefore, a colour correction through calibration should be considered to
achieve accurate colours. There is also a number of colour correction tools
available that can be used to manually adjust the colours in real time. This can
be beneficial in many cases, for instance if it is demanded to balance colours
or to achieve a certain look. This paper will give you an example on how a
calibration can be realised and what applications should be considered for
a real time colour correction workflow.
Keywords:
virtual production, in-camera VFX, colour calibration, real time colour correction
Supervisor:
Prof. Jens Herder, Dr. Eng./Univ. of Tsukuba
Prof. Dr.-Ing. Thomas Bonse
Location:
The research took place at the Virtual Sets and Virtual Environments Laboratory.
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