Abstract
Rate control aims to adapt coding bit rate to the fluctuating network bandwidth. Since the bit rate at the encoder is determined by the final residual produced after quantizing DCT coefficients, we managed to set up exact relations among coding bit rate, the sum of absolute quantized difference (SAQD) and quantization step, proposed a novel SAQD-domain source model with an analytic justification, and unified it with an easy rate control algorithm for H.264 video coding. The proposed model shows a quite pleasing goodness-of-fit. Experimental results demonstrate that, compared with rate control mechanism suggested in H.264 proposal, the proposed model unified rate control algorithm yields the desired rate with much smaller deviations (less than 0.22% of the target rate), and provides much better reconstructed visual quality by giving a maximum coding gain up to 0.84dB and an average 0.59dB with smaller PSNR variation.
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References
Kwon, D., Shen, M.Y., Kuo, C.J.: Rate Control for H.264 Video With Enhanced Rate and Distortion Models. IEEE Trans. Circuits Syst. Video Technol. 17, 517–529 (2007)
Li, Z.G., Pan, F., Lim, K.P., Feng, G., Lin, X., Rahardaj, S.: Adaptive Basic Unit Layer Rate Control for JVT. Doc. JVT-G012. ISO/IEC JTC1/SC29/WG11 and ITU-T Q6/SG16 (2003)
Chang, C.Y., Chou, C.F., Chan, D.Y., Lin, T., Chen, M.H.: A q-Domain Characteristic-Based Bit-Rate Model for Video Transmission. IEEE Trans. Circuits Syst. Video Technol. 18, 1307–1311 (2008)
Xu, Q., Liu, Y.L., Lu, X.A., Gomila, C.: A New Source Model and Accurate Rate Control Algorithm with QP and Rounding Offset Adaptation. In: IEEE International Conference on Image Processing, pp. 2496–2499 (2008)
He, Z., Mitra, S.K.: A Linear Source Model and a Unified Rate Control Algorithm for DCT Video Coding. IEEE Trans. Circuits Syst. Video Technol. 12, 970–982 (2002)
He, Z., Mitra, S.K.: Optimum Bit Allocation and Accurate Rate Control for Video Coding via ρ - domain Source Modelling. IEEE Trans. Circuits Syst. Video Technol. 12, 840–848 (2002)
Milani, S., Celetto, L., Mian, G.A.: An Accurate Low-Complexity Rate Control Algorithm Based on (ρ, Eq)–Domain. IEEE Trans. Circuits Syst. Video Technol. 18, 257–262 (2008)
Liu, L., Zhuang, X.H.: A Novel Square Root Rate Control Algorithm for H.264/AVC Encoding. In: IEEE International Conference on Multimedia and Expo, pp. 814–817 (2009)
Lam, E.Y., Goodman, J.W.: A Mathematical Analysis of the DCT Coefficient Distributions for Images. IEEE Trans. Image Processing 9, 1661–1666 (2000)
H.: 264/MPEG4 AVC Reference Software, http://iphome.hhi.de/suehring/tml
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Ai, M., Zhao, L. (2011). A SAQD-Domain Source Model Unified Rate Control Algorithm for H.264 Video Coding. In: Lee, KT., Tsai, WH., Liao, HY.M., Chen, T., Hsieh, JW., Tseng, CC. (eds) Advances in Multimedia Modeling. MMM 2011. Lecture Notes in Computer Science, vol 6524. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17829-0_36
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DOI: https://doi.org/10.1007/978-3-642-17829-0_36
Publisher Name: Springer, Berlin, Heidelberg
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