Rate Control for Spatial/CGS Scalable Extension of H.264/AVC

Liu, Y.; Soh, Yeng Chai; Li, Z.G.

doi:10.1109/iscas.2007.378009

Cited by 18 publications

(6 citation statements)

References 4 publications

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“…As shown in Tables 2, 3 and 4, the differences in terms of the mean PSNR local variance are not significant; therefore, the RC algorithm is capable of achieving similar visual qualities to those of constant QP encoding. Similarly to [9], our proposal is also characterized by its low complexity, since few operations are required for the QP selection when compared to the methods based on R-D modeling, such as [3,5,6]. …”

Section: Experiments and Resultsmentioning

confidence: 99%

“…To this end, a RC algorithm is included in the SVC encoder so that the high-quality bit stream and the remaining sub bit streams comply with the hypothetical reference decoder (HRD), a normative part of the standard that describes a set of requirements to transmit and decode bit streams. Although several RC schemes have been proposed for H.264/SVC [3,4,5,6], neither of them supports full scalability. The RC adopted by the Joint Video Team (JVT) group [3] is partially developed, since only the base spatial layer encoding is supported.…”

Section: Introductionmentioning

confidence: 99%

“…The RC adopted by the Joint Video Team (JVT) group [3] is partially developed, since only the base spatial layer encoding is supported. On the other hand, other more complete schemes support spatial and quality (CGS) scalability [4,5,6], but the HRD compliance in receivers with lower frame rates is not guaranteed. In this paper a variable bit rate (VBR) controller with buffer constraint for spatial, CGS and temporal scalable video coding is proposed for real-time video streaming.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper a variable bit rate (VBR) controller with buffer constraint for spatial, CGS and temporal scalable video coding is proposed for real-time video streaming. A long-term bit rate adaptation is feasible in this kind of applications in order to improve the visual quality in comparison to the constant bit rate (CBR) schemes required by low-delay environments [4,6]. To this purpose, the provided QP variation on a frame basis is smooth enough to minimize the quality fluctuation.…”

Section: Introductionmentioning

confidence: 99%

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Low-complexity VBR controller for spatial-CGS and temporal scalable video coding

Sanz-Rodríguez

Díaz-de-María

Rezaei

2009

2009 Picture Coding Symposium

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This paper presents a rate control (RC) algorithm for the scalable extension of the H.264/AVC video coding standard. The proposed rate controller is designed for real-time video streaming with buffer constraint. Since a large buffer delay and bit rate variation are allowed in this kind of applications, our proposal reduces the quantization parameter (QP) fluctuation to provide consistent visual quality bit streams to receivers with a variety of spatio-temporal resolutions and processing capabilities. The low computational cost is another characteristic of the described method, since a simple lookup table is used to regulate the QP variation on a frame basis

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Section: Experiments and Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Low-complexity VBR controller for spatial-CGS and temporal scalable video coding

Sanz-Rodríguez

Díaz-de-María

Rezaei

2009

2009 Picture Coding Symposium

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“…For example, Xu et al [8] proposed a rate control algorithm for spatial scalable coding in SVC by employing an improved TMN8 model based on the mode analysis of P/B frames. Liu et al [9], [10] presented a rate control algorithm for the spatial and coarse-grain-SNR (CGS) scalability of H.264/SVC. Their algorithms operate on a fixed rate of each layer and implement an macroblock (MB)-layer bit allocation scheme.…”

Section: Introductionmentioning

confidence: 99%

Bit Allocation for Spatial Scalability Coding of H.264/SVC With Dependent Rate-Distortion Analysis

Liu

Cho

Guo

et al. 2010

IEEE Trans. Circuits Syst. Video Technol.

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We propose a model-based spatial layer bit allocation algorithm for H.264/scalable video coding (SVC) in this paper. The challenge of this problem lies in the fact that the ratedistortion (R-D) behavior of an enhancement layer is dependent on its preceding layers because of inter-layer prediction. To solve it, we first focus on the case of two spatial layers, derive the distortion and rate models of the dependent layer analytically, and develop a low-complexity bit allocation algorithm. It is shown by experimental results that the proposed two-layer bit allocation algorithm can achieve the coding performance close to the optimal R-D performance based on the full search method. Then, we extend this result to multilayer bit allocation by performing the two-layer allocation scheme recursively. Finally, we compare the performance of group of pictures-based and frame-based spatial layer bit allocation schemes at a fixed temporal resolution. The superior performance of the proposed spatial layer bit allocation algorithm is demonstrated using Joint Scalable Video Model reference software algorithm and two prior H.264/SVC rate control algorithms as the benchmarks.Index Terms-Dependent layer, frame-based distortion and rate models, H.264/scalable video coding (SVC), spatial layer bit allocation.

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Improved macroblock level rate control for the spatially scalable extension of H.264/AVC

Martin

2017

Journal of Visual Communication and Image Representation

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Rate Control for Spatial/CGS Scalable Extension of H.264/AVC

Cited by 18 publications

References 4 publications

Low-complexity VBR controller for spatial-CGS and temporal scalable video coding

Low-complexity VBR controller for spatial-CGS and temporal scalable video coding

Bit Allocation for Spatial Scalability Coding of H.264/SVC With Dependent Rate-Distortion Analysis

Improved macroblock level rate control for the spatially scalable extension of H.264/AVC

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