Optimal approach for placement of resynchronization markers for video transmission over noisy channels

SangHee Lee; KeunBae Kim; Myungjin Lee; Jaekyoon Kim

doi:10.1117/12.420811

22 March 2001 Optimal approach for placement of resynchronization markers for video transmission over noisy channels

SangHee Lee, KeunBae Kim, Myungjin Lee, Jaekyoon Kim

Proceedings Volume 4209, Multimedia Systems and Applications III; (2001) https://doi.org/10.1117/12.420811
Event: Information Technologies 2000, 2000, Boston, MA, United States

Abstract

Current video coding techniques have various features to enable robust transmission of compressed video data over noisy channels. Among them, the use of resynchronization markers is an essential way to prevent spatial error propagation. In this paper, we propose an optimal approach for placement of resynchronization markers for video communication over noisy channels. Given the number of resynchronization markers assigned to the current frame, we optimally decide the position of each marker in a rate-distortion sense. The proposed method takes into account the channel condition and the expected distortion at the decoder, and incorporates these informations into a rate-distortion framework. Some assumptions and the Viterbi algorithm are employed in order to reduce the complexity of the rate-distortion problem. Various simulation results are shown to justify the performance improvement achieved by the proposed method.

Citation Download Citation

SangHee Lee, KeunBae Kim, Myungjin Lee, and Jaekyoon Kim "Optimal approach for placement of resynchronization markers for video transmission over noisy channels", Proc. SPIE 4209, Multimedia Systems and Applications III, (22 March 2001); https://doi.org/10.1117/12.420811

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