Page 773 - 2015 Security in Telecommunications and Information Technology

Unleashing the potential of the Internet of Things 5

As illustrated in Figure 2, there are four reference points: ICO-CS, ICO-VP, IVP-CS, and IVP-AU as follows:
– ICO-CS: ICO-CS is a reference point between the camera objects function and the camera control
server function. The position of the object of interest is transferred from the camera objects
function to the camera control server function. On the other hand, updated information,
including object of interest selection, main camera object selection, camera object group
selection, and camera control (e.g., pan, tilt, and zoom values of each camera object)
information is transferred from the camera control server function to camera objects function;
– ICO-VP: ICO-VP is a reference point between the camera object function and video playback
terminal function. The camera objects function sends the audience-selected video to the video
playback terminal function. Also, the playback terminal function sends the audience's
selection information and playing options to the camera objects function;

– IVP-CS: IVP-CS is a reference point between the video playback terminal function and camera
control server function. Through this reference point, video playback terminal transfers the
audience's selection information and playing options to the camera control server function.
Also, the video playback terminal function transmits the updated information, including the
main camera object selection information (for each camera object group), camera object
group selection information (for each object of interest), and camera control information for
each camera object to the camera control server function;
– IVP-AU: IVP-AU is a reference point between the video playback terminal function and the
audience. The video playback terminal function shows a list of the audience's selection
options available to the audience. The video playback terminal function then receives the
audience's selection information and playing options from the audience. Through this
reference point, the video playback terminal function shows the current status of each camera
object group, current camera control status of each camera object, currently-selected main
camera object, position of each object of interest, multi-camera video thumbnails, and
audience-selected video with selected playing options during the service.

8.2 Camera objects function
The camera objects function:

– consists of object of interest processing, communication, and video transmission FEs.
8.2.1 Object of interest processing FE

The object of interest processing FE:
– obtains the ID and the position or the tracking result of the audience-selected object of interest
in each captured frame through object of interest extraction and tracking;
– identifies an object of interest in order to provide positional information of each object of
interest that is used for generating and updating its corresponding camera object group in
camera control server function;
– converts the tracked position of the audience-selected object of interest in the main camera
object to the position in each frame captured by its sub-camera object using the camera
position and pose information.

8.2.2 Communication FE
The communications FE:

– transmits the ID and the positions or the tracking results of an audience-selected object of
interest in each captured frame to the other sub-camera objects and the camera control server
function when one of the camera object functions is selected as a main camera object;

Rec. ITU-T Y.4412/F.747.8 (11/2015) 759