3D graphics
Aug 1, 2010 12:00 PM, By Boromy Ung
3D TV channel branding goes modular.
Branding recorded content
Figure 5. Different program 3D perspectives demand different positions for the channel branding graphics.
Select figure to enlarge.
Recorded 3D TV content, such as movies, offers more options for controlling the Z-depth of the channel branding. One simple approach is prerecording of the channel branding with the content ahead of playout on-air. However, this approach restricts the reuse of the same copy of the content on different channels, and this can lead to multiple copies of similar content, which is far from ideal.
Another alternative is to have the automation system control the Z-position by recalling the position presets using either a serial command or GPI. This is more flexible but requires an extra piece of information that has to be entered in the traffic or automation system, which is not possible or practical for many operators. A further option is to have the content creator specify the graphics Z-position as the content is edited or reviewed, and to enter this information as metadata in the program. This is a time-consuming process, but it offers the advantage of simplicity and consistent quality control.
Conclusion
So it's evident that card-based channel branding processors have come a long way, and they're now serious contenders for most types of channel branding, including the latest developments in 3D TV graphics. Right now, 3D TV branding is in its formative stage, and many of the associated workflows and control processes are still evolving. However, progress is fast, and more elegant solutions are already starting to emerge.
Boromy Ung is product manager, workflow and playout, at Miranda Technologies.
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