Video coding with a variable block-sizing technique in the wavelet transform domain

Michael H. Lee; King N. Ngan

doi:10.1117/1.482596

1 July 1998 Video coding with a variable block-sizing technique in the wavelet transform domain

Michael H. Lee, King N. Ngan

Journal of Electronic Imaging, Vol. 7, Issue 3, (July 1998). https://doi.org/10.1117/1.482596

In this paper, we present an efficient video coding technique based on a variable block-sizing (VBS) technique and the wavelet transform. Quadtrees are used for VBS segmentation on the wavelet-transformed frame which is decomposed into pyramid multiresolution subbands. Feature areas are extracted during the growth of the quadtree on each subband. Motion estimation/compensation and vector quantization are performed on only the extracted feature areas in the subband. Since the VBS technique is very effective in lowering overall coding rates, the proposed coder is designed for very low bit-rate video coding. Simulation results are presented at 14.4 kbits/s for videoconferencing sequences. To evaluate the performance of the proposed coder, comparisons are made with results obtained by the H.263 standard.

Citation Download Citation

Michael H. Lee and King N. Ngan "Video coding with a variable block-sizing technique in the wavelet transform domain," Journal of Electronic Imaging 7(3), (1 July 1998). https://doi.org/10.1117/1.482596

Published: 1 July 1998

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

Members: $24.00

Non-members: $28.00 ADD TO CART

JOURNAL ARTICLE
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Feature extraction

Video coding

Wavelet transforms

Motion estimation

Quantization

Wavelets

Image compression

Show All Keywords

Keywords/Phrases

Search In:

Publication Years