Methods of Selecting Threshold for the QoE - Based Video Output Scheme SCS

SCS is a video output scheme which is designed to maximize QoE in audio-video IP transmission; it is featured by the applicability to end - terminals independent of the type of used networks. SCS switches between video error concealment and video frame skipping by comparing the percentage of error - concealed video slices in a frame to a threshold value, which is a key parameter for successful implementation of SCS. This paper proposes two practical methods of threshold selection for SCS: a table lookup method and a user selection method. The authors compare the two proposed methods with the pure error concealment and the pure video frame skipping.