Achieving progressive fine granularity scalable coding in H.26L

Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the item.Includes bibliographical references (leaves 60-61).Issued also on microfiche from Lange Micrographics.Fine granularity scalable (FGS) coding and progressive fine granularity scalable (PFGS) coding are novel scalable video schemes which are ideally suited for streaming multimedia over networks with varying bandwidth, network conditions and receiver capabilities. The FGS coding scheme has already been implemented in the MPEG-4 standard and has shown good performance in streaming applications when compared to traditional scalable video schemes. H.26L, the long term version of H.263, is an upcoming standard which performs better than MPEG-4 over a wide range of bit rates. But this standard does not currently have any scalability feature in it which makes it suitable to be used for streaming multimedia applications. The above mentioned FGS and PFGS scalable video schemes are implemented in H.26L and their performance is compared with that of the non-scalable MPEG-4 scheme. Some variations of the currently existing PFGS coding frameworks are implemented and further improvements are also proposed in this thesis