Methods and systems for rate control in video encoder

Details Methods and systems for rate control in video encoder Methods and systems for rate control in video encoder

2011-06-14

2011-06-14

Senfi, Behrooz (Department: 2482)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240260

Reexamination Certificate

active

07961783

ABSTRACT:
A method of rate control in a video encoder includes performing a first encoding step to encode macroblocks of a current frame by utilizing a first quantization parameter to thereby generate a residual signal for the current frame; estimating a number of header bits for each macroblock mode to thereby estimate a total number of header bits for the current frame; estimating an available number of texture bits according to the total number of header bits for the current frame; determining a second quantization parameter according to the estimated available number of texture bits; and performing a second encoding step to encode the residual signal for the current frame by utilizing the second quantization parameter.

REFERENCES:
patent: 5969764 (1999-10-01), Sun et al.
patent: 2003/0152151 (2003-08-01), Hsieh et al.
patent: 2004/0013202 (2004-01-01), Lainema
patent: 2004/0114817 (2004-06-01), Jayant et al.
patent: 2004/0264571 (2004-12-01), Zhang et al.
patent: 2007/0147512 (2007-06-01), Eckart
IEEE, Bo Xie and Wenjun Zeng, Sequence Based Rate Control for Constant Quality Video, 2002, 77-80.
U.S. Appl. No. 11/047,039, filed Jan. 31, 2005, Do-Kyoung Kwon.
J. Ribas-Corbera, S. Lei., Rate Control in DCT Video Coding for Low-Delay Communications., IEEE Trans. Circuits and Syst. Video Technol., 1999, pp. 172-185, vol. 9, No. 1.
P. Yin, J. Boyce., A New Rate Control Scheme for H.264 Video Coding., 2004 IEEE, pp. 449-452, NJ., USA.
Z. G. Li, F. Pan, K. P. Lim, S. Rahardja, Adaptive Rate Control for H.264., 2004 IEEE, pp. 745-748, Singapore.
Ning Wang, Yun He., A New Bit Rate Control Strategy for H.264., 2003 IEEE, Dec. 15-18, 2003, pp. 1370-1374, Singapore.
Jianfeng Xu, Yun He., A Novel Rate Control for H.264., 2004 IEEE, pp. 809-812, Beijing, China.
Z. G. Li, F. Pan, K. P. Lim, G. N. Feng, X. Lin, S. Rahardha, D. J. Wu., Adaptive Frame Layer Rate Control for H.264, 2003 IEEE, pp. 581-584, Singapore.
Debargha Mukherjee, Sanjit K. Mitra, Combined Mode Selection and Macroblock Quantization Step Adaptation for the H.263 Video Encoder., 1997 IEEE, pp. 37-40, CA., USA.

Affiliated with

Also associated with

Rating

Methods and systems for rate control in video encoder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and systems for rate control in video encoder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and systems for rate control in video encoder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2689874