Quality adaptation for FGS MPEG-4 video streaming over internet

Authors:
Philips Koshy;S. V. Raghavan
Affiliations:
Network Systems Laboratory, Department of Computer Science and Engineering, Indian Institute of Technology, Madras, India;Network Systems Laboratory, Department of Computer Science and Engineering, Indian Institute of Technology, Madras, India
Venue:
ICCC '02 Proceedings of the 15th international conference on Computer communication
Year:
2002

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Abstract

Streaming audio and video applications are becoming increasingly popular on the Internet. The heterogeneity of connection bandwidths and device capabilities have paved the way for new scalable video coding schemes, which are capable of adapting to changing network conditions. Fine Granular Scalability (FGS) coding scheme has recently been adopted by the MPEG-4 video standard as the core video coding method for streaming applications. FGS coded video consists of a base layer (BL) and an enhancement layer (EL), and the EL can be truncated in any arbitrary manner to fit into the available bandwidth. However such an arbitrary truncation results in wide variation in output quality. In this paper we present an end-to-end architecture for video streaming, and evaluate a new quality adaptation scheme for FGS MPEG-4 video. Our results show that quality adaptation produces smoother quality video output.