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CLC number: TP37

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Received: 2005-09-12

Revision Accepted: 2006-02-13

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Journal of Zhejiang University SCIENCE A 2006 Vol.7 No.6 P.990~995


A rate control scheme for H.264 video under low bandwidth channel

Author(s):  YIN Ming, WANG Hong-yuan

Affiliation(s):  Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; more

Corresponding email(s):   yinmhn@126.com

Key Words:  Video coding, H.264, Rate control, HRD, Bit allocation

YIN Ming, WANG Hong-yuan. A rate control scheme for H.264 video under low bandwidth channel[J]. Journal of Zhejiang University Science A, 2006, 7(6): 990~995.

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The dilemma of the quantization parameter (QP) being involved in both rate control and rate-distortion optimization (RDO) prevents using the traditional rate control scheme. Although some rate control schemes are proposed to circumvent the dilemma, the inaccurate prediction model and improper bit allocation deter h.264 application on low bandwidth channel. To resolve this issue, this paper proposes a novel rate control scheme by considering the macroblock (MB) encoding complexity variation and buffer variation and by exploiting the spatio-temporal correlation sufficiently well. Simulations showed that this scheme improves the perceptual quality of the pictures with similar or smaller PSNR deviations when compared to that of rate control in JVT-O016.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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[2] ITU-T Recommendation H.264, 2003. Advanced Video Coding for Generic Audiovisual Services.

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[8] Ma, S.W., Gao, W., Wu, F., Lu, Y., 2003. Rate Control for JVT Video Coding Scheme with HRD Considerations. Proceedings International Conference on Image and Processing. Spain, p.793-796.

[9] Netravail, A.N., Haskell, B.G., 1998. Digital Picture-Representation and Communication. Plenum Press.

[10] Ribas-Corbera, J., Lei, S., 1999. Rate control in DCT video coding for low-delay communication. IEEE Transaction on CSVT, 9(1):172-185.

[11] Song, H., Jay Kuo, C.C., 2001. Rate control for low-bit-rate video via variable-encoding frame rates. IEEE Transaction on Circuits and Systems for Video Technology, 11(4):512-521.

[12] Wiegand, T., 2002. Editor’s Proposed Draft Text Modifications for Joint Video Specification. Ftp://ftp.imtc-files.org/jvt-experts/2002-10Geneva/JVT-E146d7ncm.zip.

[13] Yin, P., Tourapis, H.Y.C., Tourapis, A.M., Boyce, J., 2003. Fast Mode Decision and Motion Estimation for H.264. ICIP2003.

[14] Yuan, W., Lin, S.X., Zhang, Y.D., et al., 2005. Optimum Bit Allocation and Rate Control for H.264/AVC. Joint Video Team of ISO/IEC and ITU 15th Meeting, JVT-O016.

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