Error control mechanism based on adaptive intraframe refreshment

Li Zhu; Hao Chen; Xinyu Yang

doi:10.1117/12.477205

31 July 2002 Error control mechanism based on adaptive intraframe refreshment

Li Zhu, Hao Chen, Xinyu Yang

Proceedings Volume 4875, Second International Conference on Image and Graphics; (2002) https://doi.org/10.1117/12.477205
Event: Second International Conference on Image and Graphics, 2002, Hefei, China

Abstract

Previous error control methods have obvious defects more or less for the videoconference applications. A simple and efficient error control mechanism based on adaptive intra-frame refreshment, in this paper, is proposed to conceal the transmission errors ofreal time video. This scheme maintains a backward channel to feedback the error information found by the decoder so that the coder is able to adjust the interval of intra-frame coding dynamically to conceal all sorts of real time video transmission errors. Simulation results present that this method can efficiently eliminate the temporal and spatial error propagation. Compared to conventional schemes, our algorithm need not modify the coder and decoder (Codec) and no more CPU time is consumed as well. As a result, this algorithm is especially fit for the videoconference or visual telephone applications.

Citation Download Citation

Li Zhu, Hao Chen, and Xinyu Yang "Error control mechanism based on adaptive intraframe refreshment", Proc. SPIE 4875, Second International Conference on Image and Graphics, (31 July 2002); https://doi.org/10.1117/12.477205

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