Translated Titles

True 2-D Wavelet Filter Bank and Its Application for Image Compression


郭迎春(Ying-Chun Guo);侯正信(Zheng-Xin Hou)

Key Words

全相位離散反餘弦濾波器APDICSF ; 五株採樣 ; 提升格式 ; SPIHT壓縮編碼 ; Neville濾波器 ; all phase discrete inverse cosine sequency filter APDICSF ; quincunx sampling ; lifting scheme ; SPIHT coding ; Neville filter



Volume or Term/Year and Month of Publication

16卷8期(2005 / 08 / 15)

Page #

982 - 988

Content Language


Chinese Abstract


English Abstract

A novel true 2-D nonseparable wavelet filter bank-all phase discrete inverse cosine sequency filter (APDICSF) was presented. These filter banks have quincunx sampling form and good interpolating characteristic, which can be applied in image decomposition and coding. Using it as predicting and updating filters in lifting scheme separately, we get a different decomposing way unlike the separable filter bank, then code the decomposed image in set partitioning in hierarchal trees (SPIHT). Experimental results have verified that at the same compression rate, the PSNR of the APDICSF is better than that of the well- known 2-D nonseparable Neville filter and APDICSF has good application prospect in image compression.

Topic Category 基礎與應用科學 > 物理
工程學 > 電機工程