Abstract-TV Service using a mobile device as a second screen
has been increasing. We propose a new TV system which is able
to augment representation of TV programs beyond the TV screen.
In the system, which we named augmented TV, since animated
3DCG content interlocked with TV programs is overlaid on live
video from the mobile device camera in the mobile device screen
by augmented reality techniques, the representation of having a
TV character coming out of the screen can be provided. To
achieve the representation giving such surprise or reality to the
viewer, synchronization accuracy of the overlay display is
required. A conventional synchronization method for multi
device or a visible light communication method does not meet the
requirement of the accuracy. Therefore, we developed an
accurate synchronization method and authoring environment of
augmented TV content. We implemented augmented TV, and
confirmed frame-accurate synchronization (synchronization
error time is about 0.03 seconds or less). And we confirmed that
the authoring environment is easy to produce augmented TV
content using a video clip using a 3DCG character with TV
program quality.