| Paper: | MA-P6.2 |
| Session: | Image and Video Multiresolution Processing |
| Time: | Monday, September 17, 09:50 - 12:30 |
| Presentation: |
Poster
|
| Title: |
CYCLIC FILTER BANK IMPLEMENTATIONS OF SYMMETRIC EXTENSION FOR SUBBAND/WAVELET IMAGE COMPRESSION |
| Authors: |
Jianyu Lin; University of Sydney | | |
| | Mark Smith; Purdue University | | |
| Abstract: |
Symmetric extension is typically employed in subband/wavelet image coders to improve compression performance, particularly at the image boundaries. This paper introduces improvements to the symmetric extension filter bank. The filter bank implementation employs a cyclic fre-quency domain representation and is able to accommodate IIR approximations that effectively have perfect stopband suppression. Enhancements are also introduced at the multi-rate system level. The new implementation offers greater flexibility in choice of filters and is shown to result in better compression performance. |
