SOURCE-CODING AND TRANSMISSION OF HDTV IMAGES COMPRESSED WITH THE WAVELET TRANSFORM

被引：4

作者：

ARGENTI, F ^{[1
]}

BENELLI, G ^{[1
]}

MECOCCI, A ^{[1
]}

机构：

[1] UNIV PAVIA, DEPT ELECTR ENGN, I-27100 PAVIA, ITALY

来源：

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | 1993年 / 11卷 / 01期

关键词：

D O I：

10.1109/49.210543

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Digital high-definition TV (HDTV) signals are generally compressed to reduce transmission bandwidth requirements. This paper presents a compression algorithm for the bit rate reduction of an HDTV image using the wavelet transform. The major problems related to the transmission of a compressed HDTV signal are analyzed. Transmission is examined both on a noisy channel and an asynchronous transfer mode (ATM) network. The effects of channel noise on the reconstructed image are determined, and a solution to mitigate the degradation of the image quality is presented. Lastly, a model for the output bit rate of the HDTV coder is derived and used to simulate the transmission of an ATM multiplexer so that the network's main performance parameters can be determined.

引用

页码：46 / 58

页数：13

共 28 条

[1] SURVEY OF TRAFFIC CONTROL SCHEMES AND PROTOCOLS IN ATM NETWORKS [J].