A Rate Scalable Video Codec
In this project
in the
Video and Image Processing Laboratory (VIPER),
we are studying a control scheme for a rate scalable video
codec. We are investigating a wavelet based video codec with motion
compensation used to reduce temporal redundancy. The prediction error
frames are encoded using an embedded zerotree wavelet (EZW) approach
which allows data rate scalability. Since motion compensation is used
in the algorithm, the quality of the decoded video may decay due to
the propagation of errors in the temporal domain. An adaptive motion
compensation scheme has been developed to address this problem.
We have shown
using our control scheme the quality of the decoded video can be
maintained at any data rate.
The following poster describes our work.
To have a closer look at the poster, please click on the area that interests you.
A comparison of the video images at different data rates are shown in the
following figure.
Publications
Our recent publications in
Image and Video Compression.
A complete set of our recent publications are available
here.
Address all comments and questions to
Professor
Edward J. Delp.
Professor Edward J. Delp
