Stankovic, V. and Hamzaoui, R. and Saupe, D. (2001) Fast algorithm for optimal error protection of embedded wavelet codes. In: 4th IEEE Workshop on Multimedia Signal Processing (MMSP 01), 2001-10-03 - 2001-10-05, Cannes.
Full text not available in this repository. (Request a copy from the Strathclyde author)Abstract
Embedded wavelet codes are very sensitive to channel noise because a single bit error can lead to an irreversible loss of synchronization between the encoder and the decoder. Sherwood and Zeger protected a zero-tree based embedded wavelet code sent through a memoryless noisy channel by using cyclic redundancy detection codes (CRC) and channel correction codes. Chande and Farvardin proposed an optimal joint source-channel allocation strategy for such systems. We show how to accelerate their algorithm without quality loss. For grey scale test images of size 512 x 512, our speedup factors ranged from 1.2 to 6 for total bit rates between 0.25 and 1.0 bits per pixel. Moreover, by using turbo codes as channel codes, we obtained competitive peak-signal-to-noise ratio (PSNR) results.
| Item type: | Conference or Workshop Item (Paper) |
|---|---|
| ID code: | 37618 |
| Keywords: | computer science, theory & methods , fast algorithms, software engineering, error protection, embedded wavelet codes, Electrical engineering. Electronics Nuclear engineering |
| Subjects: | Technology > Electrical engineering. Electronics Nuclear engineering |
| Department: | Faculty of Engineering > Electronic and Electrical Engineering |
| Related URLs: | |
| Depositing user: | Pure Administrator |
| Date Deposited: | 13 Feb 2012 15:55 |
| Last modified: | 04 Oct 2012 17:22 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/37618 |
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