DocumentCode
2034427
Title
Subband finite state scalar quantization
Author
Naveen, T. ; Woods, John W.
Author_Institution
ECSE Dept., Rensselaer Polytech. Inst., Troy, NY, USA
Volume
5
fYear
1993
fDate
27-30 April 1993
Firstpage
613
Abstract
A novel image coding algorithm that exploits the relationship between various subbands of an image is presented. This algorithm has been simulated on the monochrome ´Lena´ image and an MIT high-definition (HD) video. Uniform-threshold quantizers (UTQs) and differential pulse code modulation (DPCM) are used in the implementation of the algorithm. Using local variance for classification, a 15% reduction in quantization noise has been achieved compared with other published techniques for ´Lena´ at an average bit rate of 1.0 bit/pixel. For the MIT HD video, this reduction was 29.1%.<>
Keywords
high definition television; image coding; pulse-code modulation; variational techniques; HD video; differential pulse code modulation; image coding algorithm; local variance; quantization noise; uniform-threshold quantizers;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, 1993. ICASSP-93., 1993 IEEE International Conference on
Conference_Location
Minneapolis, MN, USA
ISSN
1520-6149
Print_ISBN
0-7803-7402-9
Type
conf
DOI
10.1109/ICASSP.1993.319886
Filename
319886
Link To Document