TY - GEN
T1 - Extended MPEG-2 rate control by analytical modeling of feedback system
AU - Watanabe, Hiroshi
AU - Ito, Yoshinori
PY - 1994/12/1
Y1 - 1994/12/1
N2 - A rate control in video coding using an analysis model is described. Video coding and the rate control presented in this paper are MPEG2 and its Test Model since they are known to provide better performance than the conventional one. The rate control can be modeled as a linear feedback system with some statistical assumptions. By this model, we can adjust the feedback response of the system. It is required to generate constant bits per picture for the communication application since it gives the shorter delay by using a smaller area of the buffer memory. Thus, the method to improve the tracking ability to the target bit in a certain period is proposed. It can generate more precise bit amount for a group of pictures (GOP) than the normal case. The deviation from the target value at the GOP level can be lowered to less than 1/70 in the simulation It can be applied to any video coding which determines a quantization step at every macroblock.
AB - A rate control in video coding using an analysis model is described. Video coding and the rate control presented in this paper are MPEG2 and its Test Model since they are known to provide better performance than the conventional one. The rate control can be modeled as a linear feedback system with some statistical assumptions. By this model, we can adjust the feedback response of the system. It is required to generate constant bits per picture for the communication application since it gives the shorter delay by using a smaller area of the buffer memory. Thus, the method to improve the tracking ability to the target bit in a certain period is proposed. It can generate more precise bit amount for a group of pictures (GOP) than the normal case. The deviation from the target value at the GOP level can be lowered to less than 1/70 in the simulation It can be applied to any video coding which determines a quantization step at every macroblock.
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M3 - Conference contribution
AN - SCOPUS:0028749449
SN - 081941638X
SN - 9780819416384
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 290
EP - 295
BT - Proceedings of SPIE - The International Society for Optical Engineering
T2 - Visual Communications and Image Processing '94
Y2 - 25 September 1994 through 29 September 1994
ER -