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Lagrangian Multiplier Adaptation for Rate-Distortion Optimization With Inter-Frame Dependency

Shuai Li, Ce Zhu, Yanbo Gao, Yimin Zhou, Frederic Dufaux, Ming-Ting Sun
2016 IEEE transactions on circuits and systems for video technology (Print)  
Accordingly, a rate-distortion optimization scheme taking the inter-frame dependency into account is proposed by adapting the Lagrangian multiplier.  ...  In this paper, we investigate RDO with inter-frame dependency, where the impact of coding performance of the current coding unit on that of the following frames is considered.  ...  He is a co-recipient of two best paper awards (as the first author) and one student paper award (with Her research interests include image/video coding, 3D video coding.  ... 
doi:10.1109/tcsvt.2015.2450131 fatcat:l7dgaodn6vb2xgphkffjzustuq

A Temporal Dependency Model for Rate-Distortion Optimization in Video Coding

Jingning Han, Paul Wilkins, Yaowu Xu, James Bankoski
2019 2019 27th European Signal Processing Conference (EUSIPCO)  
in Equation18 and the Lagrangian multiplier at 64 64 may be adapted with a multiplier associated with × λ 0 the frame level quantization parameter, which may be expressed as the following: [i] .  ...  To achieve optimality for frame level QP selection, the encoding complexity increases significantly. Rate allocation optimization may utilize inter frame dependency.  ... 
doi:10.23919/eusipco.2019.8903158 dblp:conf/eusipco/HanWXB19 fatcat:g5co6tr5hvewrg5yvc644hbchu

Adaptive Rate-Distortion Optimization for H.264 [chapter]

Kwan-Jung Oh, Yo-Sung Ho
2005 Lecture Notes in Computer Science  
In this paper, we propose an adaptive rate-distortion optimization algorithm for H.264. We regulate the Lagrangian multiplier according to the picture type and characteristics of each macroblock.  ...  If we want to consider both the rate and the distortion, a Lagrangian technique targeting for rate-distortion optimization (RDO) is a good alternative.  ...  In this paper, we propose an adaptive rate-distortion optimization algorithm for H.264.  ... 
doi:10.1007/11582267_54 fatcat:typkgatujbhttorhkey5hj2buq

Lagrangian multiplier optimization using correlations in residues

Zhenyu Liu, Dongsheng Wang, Junwei Zhou, Takeshi Ikenaga
2012 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)  
Rate distortion optimization (RDO) algorithm plays the vital role in the up to date hybrid video codec H.264/AVC.  ...  This paper extends the Lagrangian optimization techniques by modeling the transformed residues as the first-order Markov source and calibrating the distortion model with the piecewise approximation function  ...  Adaptive Lagrangian Multiplier Algorithm The proposed Lagrangian multiplier updating is conducted in an MB-by-MB manner for P-and B-frames.  ... 
doi:10.1109/icassp.2012.6288099 dblp:conf/icassp/LiuWZI12 fatcat:zrverc2zs5gbrii76pqdzoi6ya

Iterative Rate-Distortion Optimization of H.264 With Constant Bit Rate Constraint

Cheolhong An, T.Q. Nguyen
2008 IEEE Transactions on Image Processing  
In this paper, we apply the primal-dual decomposition and subgradient projection methods to solve the rate-distortion optimization problem with the constant bit rate constraint.  ...  As an example, we derive the optimal bit allocation condition with the consideration of temporal prediction dependency among the pictures.  ...  Next, given the optimal MVs for inter MB modes, find the optimal MB mode which minimizes the Lagrangian cost , that is, among the inter and the other MB modes such as intra MB and direct MB modes.  ... 
doi:10.1109/tip.2008.2001046 pmid:18701398 fatcat:k7mqvniyefbzzleqy7okcylgky

Performance and computational complexity optimization in configurable hybrid video coding system

D.N. Kwon, P.F. Driessen, A. Basso, P. Agathoklis
2006 IEEE transactions on circuits and systems for video technology (Print)  
A technique to adaptively control the optimal encoding mode is also proposed.  ...  Based on the analyzed data, operational C-D curves are obtained through an exhaustive search, and the Lagrangian multiplier method.  ...  Zhang for their technical discussion and comments in realizing the proposed idea and writing the paper.  ... 
doi:10.1109/tcsvt.2005.858615 fatcat:jtjsbgl7trg4rakdf62or44fle

A Quantitative Approach To The Temporal Dependency in Video Coding [article]

Jingning Han, Paul Wilkins, Yaowu Xu, James Bankoski
2021 arXiv   pre-print
It evaluates the rate and distortion for each coding block using the original and the reconstructed motion compensation reference blocks, respectively.  ...  Its predictive coding scheme propagates the quantization distortion through the prediction chain and creates a temporal dependency.  ...  It was shown that the TPL based approach achieved more coding gains in the Lagrangian multiplier scaling scheme that accounted for the temporal dependency in the rate-distortion optimization [17] framework  ... 
arXiv:2108.11586v1 fatcat:blvp7v4pwvfjlijqwkhn2uzlfq

Video summarization for energy efficient wireless streaming

Zhu Li, Fan Zhai, Aggelos K. Katsaggelos
2005 Visual Communications and Image Processing 2005  
With the proliferation of camera equipped cell phones and the deployment of the higher data rate 2.5G and 3G infra structure systems, providing consumers with video-equipped cellular communication infrastructure  ...  Operational energy efficiency -summary distortion performance is characterized under an optimal summarization setting.  ...  Summarization distortion and average power during transmission are plotted for different values of Lagrangian multiplier, with 1 λ =1.0e-5 and 2 λ =6.0e-5.  ... 
doi:10.1117/12.631646 fatcat:nnvgstq6b5fcvkiguidrn3eeja

Rate-distortion optimized mode selection for very low bit rate video coding and the emerging H.263 standard

T. Wiegand, M. Lightstone, D. Mukherjee, T.G. Campbell, S.K. Mitra
1996 IEEE transactions on circuits and systems for video technology (Print)  
Conditions for optimizing the encoder operation are derived within a rate-constrained product code framework using a Lagrangian formulation.  ...  for a given bit-rate budget.  ...  The authors are greatful for the helpful comments of Jong Dae Kim. They would also like to thank David Miller, Eckehard Steinbach, and Bernd Girod for useful discussions.  ... 
doi:10.1109/76.488825 fatcat:37hzeywpizcnpgjjwxduq4fvza

Low-complexity rate-distortion optimal macroblock mode selection and motion estimation for MPEG-like video coders

Hyungjoon Kim, N. Kamaci, Y. Altunbasak
2005 IEEE transactions on circuits and systems for video technology (Print)  
Rate-distortion optimization can significantly improve encoder performance in MPEG-like video coding applications.  ...  Nevertheless, mode selection and motion estimation (ME) in a rate-distortion optimized setting can entail a prohibitive computational cost.  ...  The Lagrangian multiplier was predicted from the previous frame.  ... 
doi:10.1109/tcsvt.2005.848354 fatcat:jew4ao6kkbfpjnw5er26pcg2fi

Joint source-channel coding and power adaptation for energy efficient wireless video communications

Fan Zhai, Yiftach Eisenberg, Thrasyvoulos N. Pappas, Randall Berry, Aggelos K. Katsaggelos
2005 Signal processing. Image communication  
optimize video quality given constraints on the total transmission energy and delay for each video frame.  ...  In both cases, we allow the coding rate to be adaptive to provide unequal error protection at both the packet and frame level.  ...  Together, these make the expected distortion for one packet depend on the parameters selected for all the packets in the same frame.  ... 
doi:10.1016/j.image.2005.02.002 fatcat:ocfgsfbcrfhbdf2ycf5hbk72ze

Multiple description video coding using correlation optimized temporal sampling

HuiHui Bai, MengMeng Zhang, AnHong Wang, Yao Zhao
2013 Science China Information Sciences  
Significantly, given a central distortion, rate-distortion optimization with Lagrangian formulation is applied in pre-processing to achieve a good tradeoff between bit rate and side distortion.  ...  Furthermore, to simplify Lagrangian optimization, a new optimization criterion is proposed based on the correlation of intra-and inter-descriptions.  ...  In addition, to avoid the complexity of rate-distortion optimization with the Lagrangian formulation, we propose a new optimization criterion based on intra-and inter-description correlation to perform  ... 
doi:10.1007/s11432-013-4861-2 fatcat:xetp6iw47vdephrbcs7qsjpg6y

Optimal Lagrange Multipliers for Dependent Rate Allocation in Video Coding [article]

Ana De Abreu, Gene Cheung, Pascal Frossard, Fernando Pereira
2016 arXiv   pre-print
However, the search for the "optimal" multiplier, one that results in a distortion-minimizing solution among all Lagrangian solutions that satisfy the original rate constraint, remains an elusive open  ...  We terminate when a singular multiplier value results in two Lagrangian solutions with rates below and above the bit budget.  ...  By "optimal", we mean a multiplier value that yields a pair of Lagrangian optimal solutions to (8) with the tightest distortion bound (10) possible with respect to the true optimal solution in (5).  ... 
arXiv:1603.06123v1 fatcat:cu5qojzrurgwracqi76z4te6v4

R-D spatio-temporal adaptive quantization based on temporal distortion backpropagation in HEVC

Michael Ropert, Julien Le Tanou, Maxime Bichon, Mederic Blestel
2017 2017 IEEE 19th International Workshop on Multimedia Signal Processing (MMSP)  
In [3] , authors approximate an Inter-frame dependent R-D model in order to optimize frame quantizers for RC purpose.  ...  CONCLUSION In this paper, we demonstrate the benefits of considering inter-block dependencies for adaptive quantization.  ... 
doi:10.1109/mmsp.2017.8122247 dblp:conf/mmsp/RopertTBB17 fatcat:co73axmymrfnzn4kdxsmm2ewza

Compression using self-similarity-based temporal super-resolution for full-exposure-time video

Mihoko Shimano, Gene Cheung, Imari Sato
2011 2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)  
In this paper, we present a compression strategy, where, for a given targeted rate-distortion (RD) tradeoff, FET video frames at appropriate temporal resolutions are selected for encoding using standard  ...  In order to allow sufficient amount of light into the image sensor, videos captured in poor lighting conditions typically have low frame rate and frame exposure time equals to inter-frame periodcommonly  ...  Shortest Path in DAG Having defined rate cost R(p) and distortion cost D(p) for a given frame selection path p, we can formalize our path selection problem as a Lagrangian optimization problem: min p∈P  ... 
doi:10.1109/icassp.2011.5946588 dblp:conf/icassp/ShimanoCS11 fatcat:rswvx2gsgjawxj4nu7ndvns6zy
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