Page 777 - 2015 Security in Telecommunications and Information Technology

Unleashing the potential of the Internet of Things 5

(5) the audience also selects a main camera object among multi-camera objects in the selected
camera object group;
(6) the audience also selects a region of interest that includes an object of interest in the main
camera object image;
(7) video streaming server object streams and shows a video of the main camera object with
sub-images (e.g., thumbnails) of other camera objects to the audience;
(8) during the streaming, the audiences may switch the main camera object to another camera
object if he or she wants to watch the video with a different camera angle;
(9) after the object of interest selection, a video processing server object that is linked with the
main camera object starts the video processing, such as automatic tracking of a selected
object of interest in the main camera object frame by frame;

(10) during the tracking process, the main camera object transmits a tracked position of the
selected object of interest to the other camera objects by camera-to-camera transmission;
(11) the other camera objects receive and calculate the position of the selected object of interest
from the received tracked position in the image of the main camera object;
(12) based on each calculated position of an object of interest in each camera object, the camera
object control server object updates the component camera objects in each camera object
group;
(13) the process repeats step 4) to step 13) until the audiences or the broadcasters quit the current
media service.
Finally, each audience can enjoy personalized video media content that includes an object of interest
and has a camera view that each audience wants to watch.

I.2 Use case for an open screen service using multi-camera objects

Open screen service can be a use case of the ASM service. Open screen service is a service based on
open platform to control various types of screens and to show content by sensing states (e.g., age and
gender) and movement of a human being. Representative use cases of open screen service include
digital signage and emergency service. For example, if a person is near a screen using open platform
of open screen service, the screen can show an image or video media advertisement or an evacuation
route to the person.

In order to sense states and movement of human beings, multi-camera objects and camera control
servers are mandatory for the open screen service. In the perspective of open screen service, the
audience can be an advertiser or emergency service provider, and the object of interest can be a human
being who is a customer of an advertiser.
Figure I.2 explains use case for an open screen service using multi-camera objects:

(1) an object of interest (e.g., customer) moves to the vicinity of a screen (e.g., screen 1) equipped
with a camera object (e.g., camera object 1).

(2) The camera object (e.g., camera object 1) captures video data of the object of interest and
then sends the captured video data to camera control server.

(3) The camera control server sends information for tracking the object of interest to the camera
object (e.g., camera object 1).

(4) The camera control server sends the position information and captured video data to media
server being owned by the audience (e.g., advertiser) and providing image or video media
(e.g., advertisement) that the audience (e.g., advertiser) wants to provide for the object of
interest (e.g., customer).

Rec. ITU-T Y.4412/F.747.8 (11/2015) 763