3D wavelet video codec and its rate control in ATM network

Author

Lin, Gang ; Liu, Zemin

Author_Institution

Coll. of Telecom. Eng., Beijing Univ. of Posts & Telecommun., China

Volume

4

fYear

1999

fDate

36342

Firstpage

447

Abstract

This paper presents a new video coding system based on the wavelet transform and its rate control scheme over ATM networks. First, the three dimensional (3D) wavelet transform is performed on the original image sequence, and an extension of set partitioning in hierarchical trees (SPIHT) algorithm is employed to quantize the wavelet coefficients. Then, the output rate of the coder is controlled at group of frame (GOF) scale, ensuring that it conforms to the parameters of a leaky bucket controller. Several leaky buckets with different sizes are discussed too. Our simulation shows the efficiency of this codec and the effectiveness of the proposed rate control scheme

Keywords

asynchronous transfer mode; broadband networks; telecommunication control; trees (mathematics); video codecs; video coding; wavelet transforms; 3D wavelet transform; 3D wavelet video codec; ATM network; SPIHT algorithm; coder output rate control; group of frame scale; image sequence; leaky bucket controller; rate control scheme; set partitioning in hierarchical trees algorithm; wavelet coefficients; Asynchronous transfer mode; Bit rate; Image coding; Image sequences; Intelligent networks; Telecommunication control; Video codecs; Video coding; Wavelet domain; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on

Conference_Location

Orlando, FL

Print_ISBN

0-7803-5471-0

Type

conf

DOI

10.1109/ISCAS.1999.780038

Filename

780038