HVLC: Error correctable hybrid variable length code for image coding in wireless transmission

Yew San Lee, Cheng Mou Yn, Wei Shin Chang, Chen-Yi Lee

研究成果: Conference contribution

3 引文 斯高帕斯(Scopus)

摘要

Variable length code (VLC), also called Huffman code [1], is the most popular data compression technique used for solving transmission channel bandwidth bottleneck in image compression standards such as JPEG, MPEG, and H263. But, it is vulnerable to loss of synchronization if they are transmitted consecutively through a noisy wireless channel. It will result in large drops in video transmission quality. We propose a novel Hybrid VLC (HVLC) coding scheme to provide high tolerances to random and burst errors in worsening channel conditions. It exhibits high synchronization, error correction capability and low redundancy. For erroneous HVLC bitstream, it is able to self-synchronize within one codeword. The result shows that it achieves high signal-to-noise ratio (PSNR=30dB) compared to existing VLC schemes at bit error rate (BER) of 10-3 environment. With efficient memory mapping, HVLC requires low memory spaces and achieves high throughput rate. It is very suitable for VLSI implementation in wireless application.

原文English
主出版物標題Image and Multidimensional Signal ProcessingMultimedia Signal Processing
發行者Institute of Electrical and Electronics Engineers Inc.
頁面2103-2106
頁數4
ISBN(電子)0780362934
DOIs
出版狀態Published - 1 一月 2000
事件25th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2000 - Istanbul, Turkey
持續時間: 5 六月 20009 六月 2000

出版系列

名字ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
4
ISSN(列印)1520-6149

Conference

Conference25th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2000
國家Turkey
城市Istanbul
期間5/06/009/06/00

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  • 引用此

    Lee, Y. S., Yn, C. M., Chang, W. S., & Lee, C-Y. (2000). HVLC: Error correctable hybrid variable length code for image coding in wireless transmission. 於 Image and Multidimensional Signal ProcessingMultimedia Signal Processing (頁 2103-2106). [859250] (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings; 卷 4). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICASSP.2000.859250