TY - GEN
T1 - Macroblock level rate control for low delay H.264/AVC based video communication
AU - Gao, Min
AU - Cizmeci, Burak
AU - Eiler, Michael
AU - Steinbach, Eckehard
AU - Zhao, Debin
AU - Gao, Wen
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/7/28
Y1 - 2015/7/28
N2 - In this paper, we propose a macro-block (MB) level rate control algorithm for low delay H.264/AVC video communication based on the ρ domain rate model. In the proposed algorithm, an exponential model is used to characterize the relation between ρ and the quantization step (Qstep) at the MB level, with which the quantization parameter (QP) for a MB can be obtained. Furthermore, a switched QP calculation scheme is introduced to obtain the QP for each MB to avoid large deviation of the actual frame size from the target bit budget. Compared with the original ρ domain rate control, the proposed method can achieve better video quality and improved bit-rate accuracy. Meanwhile, the computational complexity is also significantly reduced.
AB - In this paper, we propose a macro-block (MB) level rate control algorithm for low delay H.264/AVC video communication based on the ρ domain rate model. In the proposed algorithm, an exponential model is used to characterize the relation between ρ and the quantization step (Qstep) at the MB level, with which the quantization parameter (QP) for a MB can be obtained. Furthermore, a switched QP calculation scheme is introduced to obtain the QP for each MB to avoid large deviation of the actual frame size from the target bit budget. Compared with the original ρ domain rate control, the proposed method can achieve better video quality and improved bit-rate accuracy. Meanwhile, the computational complexity is also significantly reduced.
UR - http://www.scopus.com/inward/record.url?scp=84945894312&partnerID=8YFLogxK
U2 - 10.1109/PCS.2015.7170077
DO - 10.1109/PCS.2015.7170077
M3 - Conference contribution
AN - SCOPUS:84945894312
T3 - 2015 Picture Coding Symposium, PCS 2015 - with 2015 Packet Video Workshop, PV 2015 - Proceedings
SP - 210
EP - 215
BT - 2015 Picture Coding Symposium, PCS 2015 - with 2015 Packet Video Workshop, PV 2015 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 31st Picture Coding Symposium, PCS 2015 - with 2015 Packet Video Workshop, PV 2015
Y2 - 31 May 2015 through 3 June 2015
ER -