Joint Rate Allocation for Multiprogram Video Coding Using FGS

Joint rate allocation for statistical multiplexing of SVC

“…Algorithms used to derive video complexity can be broadly classified into feedback approaches [1] [2] and look-ahead approaches [3] [7] depending on how the R-D statistics of the video frames are obtained. These two approaches can also be jointly applied to predict the bit allocation for each of the video programs [4].…”

“…But the bandwidth distribution for base layer of each program is just decided using equal allocation. Wang et al pointed out in [7] that, base layer qualities affect the overall performance and the equal distribution of base layer bandwidth is not efficient. They also showed that the rate allocation scheme proposed in [6] results in a large quality difference between different programs.…”

“…They also showed that the rate allocation scheme proposed in [6] results in a large quality difference between different programs. In [7], both the base layer bandwidth and the channel bandwidth are dynamically distributed among video programs in order to minimize the quality differences between video programs. Although the inter-program fairness was taken care in [7], the intra-program smoothness criterion was not considered in the optimization problem, which may cause large quality fluctuations within a video program.…”

“…In [7], both the base layer bandwidth and the channel bandwidth are dynamically distributed among video programs in order to minimize the quality differences between video programs. Although the inter-program fairness was taken care in [7], the intra-program smoothness criterion was not considered in the optimization problem, which may cause large quality fluctuations within a video program. This paper proposes a new statistical multiplexing scheme based on the platform in [7] by employing SVC as the video encoder.…”

“…Although the inter-program fairness was taken care in [7], the intra-program smoothness criterion was not considered in the optimization problem, which may cause large quality fluctuations within a video program. This paper proposes a new statistical multiplexing scheme based on the platform in [7] by employing SVC as the video encoder. In our scheme, each video program is separated into groups of pictures (GOPs) with fixed lengths and the rate allocation is updated at the GOP boundaries.…”