Efficient embedded subband coding algorithm for DCT image compression

Jun Chen; Chengke Wu

doi:10.1117/12.442929

26 September 2001 Efficient embedded subband coding algorithm for DCT image compression

Jun Chen, Chengke Wu

Proceedings Volume 4551, Image Compression and Encryption Technologies; (2001) https://doi.org/10.1117/12.442929
Event: Multispectral Image Processing and Pattern Recognition, 2001, Wuhan, China

Abstract

A low memory embedded subband image coding algorithm based on the discrete cosine transform (DCT) with low complexity and high performance is presented in this paper. The zerotree-based coder SPIHT and the zeroblock-based coder SPECK have found more successful application in wavelet image compression. Xiong et al.'s EZDCT scheme also employs the zerotree structure and fulfills a DCT-based embedded zerotree quantizer with its performance outperforming the baseline JPEG and improved JPEG. We point out the zerotree structure of DCT is not efficient in embedded DCT coder. Without relying on the zerotree structure, we propose a more efficient embedded subband codec based on the zeroblock partitioning for the DCT image (ESDCT) with lower memory requirements and higher compression performance. A comparison reveals that PSNR results of our ESDCT and are 0.5-1.5 dB higher than those of EZDCT and the compression performance is slightly superior to SPIHT in some cases.

Citation Download Citation

Jun Chen and Chengke Wu "Efficient embedded subband coding algorithm for DCT image compression", Proc. SPIE 4551, Image Compression and Encryption Technologies, (26 September 2001); https://doi.org/10.1117/12.442929

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available