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Chapter 4
Progressive Fine Granularity Scalable (PFGS)
Coding
4.1 Introduction
With recent developments in computing technology, such as high-capacity storage
devices, high-speed wired and wireless networks, and compression and transmission
technologies, more and more users expect to enjoy high-quality multimedia services
over the Internet [21–23]. Typically, there are two approaches to providing multime-
dia services on-demand: offline downloading and online streaming. Since the stream-
ing approach enables users to experience a multimedia presentation on the fly while
it is being downloaded from the Internet, it has prevailed in both academia and in-
dustry circles. In virtue of the streaming technology, users no longer have to suffer
from long ...