Title :
Optimal rate allocation for video coding and transmission over wireless channels
Author :
Song, Jie ; Liu, K. J Ray
Author_Institution :
Lucent Technol., Holmdel, NJ, USA
Abstract :
An integrated framework of optimal rate allocation for video coding is presented in the case of transmission over wireless channels without feedback channels. For a fixed channel bit rate and finite number of channel coding rate, the proposed scheme can find the optimal source and channel coding pair and corresponding robust video coding scheme such that the expected end-to-end distortion of video signals can be minimized. With the, assumption that encoder has the stochastic channel information, the proposed scheme takes into account robust video coding, channel coding and packetization, error concealment techniques altogether. Simulation results show the accuracy and optimality of the proposed method
Keywords :
channel coding; optimisation; rate distortion theory; source coding; stochastic processes; telecommunication channels; video coding; visual communication; channel bit rate; channel coding rate; error concealment; error propagation; half-pel based distortion estimate algorithm; multimedia applications; optimal channel coding; optimal rate allocation; optimal source coding; packetization; rate-distortion optimized video coding; simulation results; stochastic channel information; video conferencing; video signals distortion; video transmission; wireless channels; Automatic repeat request; Channel coding; Distortion; Feedback; Image reconstruction; Rate-distortion; Robustness; Source coding; Video coding; Videoconference;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-7041-4
DOI :
10.1109/ICASSP.2001.941187