A layered algorithm image coding based on combination of wavelet and ridgelet

Author

Li Wei ; Cai Zhiwei ; Pang Zhen-peng

Author_Institution

Coll. of Inf. Sci. & Eng., Henan Univ. of Technol., Zhengzhou, China

Volume

1

fYear

2010

fDate

17-18 July 2010

Firstpage

27

Lastpage

30

Abstract

This paper proposes a new layered image coding algorithm combined the advantages of wavelet and ridgelet transformations. First of all, the origin image I smoothed by an improved anisotropic diffusion method, obtained an smooth image R1, then subtracted R1 from I and obtained an texture image R2. R1 encoded by the SPIHT algorithm based on DWT, and R2 encoded by a amending SPIHT based on ridgelet. The experimental results show that this paper algorithm is better than the SPIHT compression algorithm in the case of the same rate, especially for rich texture image.

Keywords

data compression; discrete wavelet transforms; image coding; image texture; DWT; SPIHT algorithm; SPIHT compression algorithm; image R1 smoothing; layered algorithm image coding; ridgelet transformations; texture image R2; wavelet transformations; Differential equations; Discrete wavelet transforms; amend SPIHT; image smooth; layered encoding; ridgelet;

fLanguage

English

Publisher

ieee

Conference_Titel

Environmental Science and Information Application Technology (ESIAT), 2010 International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-7387-8

Type

conf

DOI

10.1109/ESIAT.2010.5568482

Filename

5568482