Title :
Goal based optimal selection of media streams
Author :
Atrey, Pradeep K. ; Kankanhalli, Mohan S.
Author_Institution :
Sch. of Comput., Nat. Univ. of Singapore, Singapore
Abstract :
A multimedia system utilizes a set of correlated media streams each of which partially help in achieving the system goal. However, since not all of the streams always contribute towards the goal, there is a need for determining the most informative subset from the available set of media streams at any instant. For example, a subset of two video cameras and two microphones could be better than any other subset of multimedia sensors at some time instance. This paper presents a novel framework to find the optimal subset of media streams that achieves the system goal under specified constraints. The proposed framework uses a dynamic programming approach to find the optimal subset of media streams based on two criteria; first, by maximizing the probability of achieving the goal under the specified maximum cost, and second by minimizing the cost of using the streams so that the goal is achieved with a specified minimum probability. To show the utility of our framework, we provide the simulation results for hypothesis testing.
Keywords :
correlation theory; dynamic programming; media streaming; minimisation; probability; correlated media stream; dynamic programming approach; hypothesis testing; informative subset; maximization; minimization; multimedia system; probability; Cameras; Cost function; Dynamic programming; MONOS devices; Microphones; Multimedia systems; Performance analysis; Streaming media; Surveillance; Testing;
Conference_Titel :
Multimedia and Expo, 2005. ICME 2005. IEEE International Conference on
Print_ISBN :
0-7803-9331-7
DOI :
10.1109/ICME.2005.1521421