DC error correction for image transmission over wireless channels

Tin Tak Cheung, Roger S. Cheng, Khaled Letaief

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

With the advances in 3G mobile communications, wireless multimedia communications have received increased attention. One of the most serious problems in wireless transmission of image is the loss of macroblock (MB) synchronization. In 1995, Error Resilient Entropy Code (EREC) was proposed to solve the MB synchronization problem. However, EREC leads to two new error propagation issues: AC error propagation and DC error propagation. In this paper, we propose a DC error correction technique to tackle the DC error propagation problem. This technique requires no changes in the source encoder and decoder, and can make full use of the inserted DC values and the neighboring DC values to limit the effect of the DC error propagation. Various simulation results are presented and they demonstrate that the proposed technique improves the image quality significantly.

Original languageEnglish
Title of host publication2000 IEEE Wireless Communications and Networking Conference
Pages1237-1242
Number of pages6
Publication statusPublished - 2000
Externally publishedYes
Event2000 IEEE Wireless Communications and Networking Conference - Chicago, IL, United States
Duration: 23 Sep 200028 Sep 2000

Other

Other2000 IEEE Wireless Communications and Networking Conference
CountryUnited States
CityChicago, IL
Period23/9/0028/9/00

Fingerprint

Image communication systems
Error correction
Synchronization
Entropy
Communication
Image quality

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Cheung, T. T., Cheng, R. S., & Letaief, K. (2000). DC error correction for image transmission over wireless channels. In 2000 IEEE Wireless Communications and Networking Conference (pp. 1237-1242)

DC error correction for image transmission over wireless channels. / Cheung, Tin Tak; Cheng, Roger S.; Letaief, Khaled.

2000 IEEE Wireless Communications and Networking Conference. 2000. p. 1237-1242.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Cheung, TT, Cheng, RS & Letaief, K 2000, DC error correction for image transmission over wireless channels. in 2000 IEEE Wireless Communications and Networking Conference. pp. 1237-1242, 2000 IEEE Wireless Communications and Networking Conference, Chicago, IL, United States, 23/9/00.
Cheung TT, Cheng RS, Letaief K. DC error correction for image transmission over wireless channels. In 2000 IEEE Wireless Communications and Networking Conference. 2000. p. 1237-1242
Cheung, Tin Tak ; Cheng, Roger S. ; Letaief, Khaled. / DC error correction for image transmission over wireless channels. 2000 IEEE Wireless Communications and Networking Conference. 2000. pp. 1237-1242
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