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Context-Adaptive Inverse Quantization for Inter-Frame Coding

Kang Liu, Dong Liu, Li Li, Houqiang Li
2021 IEEE Open Journal of Circuits and Systems  
INDEX TERMS Context-adaptive, correlation analysis, inter-frame coding, inverse quantization, transform coefficients.  ...  ., context, to reduce the quantization loss. We address this issue and propose a context-adaptive inverse quantization method, namely, CAIQ.  ...  This means that our proposed context-adaptive inverse quantization is always helpful for blocks with texture, motion, edges, etc.  ... 
doi:10.1109/ojcas.2021.3125730 fatcat:wxhajgmgw5epjco5cetzr53vyi


Logashanmugam E, Ramachandran R
2008 International Journal on Intelligent Electronic Systems  
Key words: In this paper, we present a comparative performance analysis of low power hardware architecture for real time implementation of context adaptive binary arithmetic coding algorithm and Context-based  ...  adaptive Variable Length Coding algorithm (CAVLC) used in H.264/ MPEG part 10 video coding standards.  ...  In H.264, the Context-based adaptive variable-length coding (CAVLC) is used for lossless compression.  ... 
doi:10.18000/ijies.30022 fatcat:jf657uorm5d2lh2d6tjlsftd3q

Technical overview of VP8, an open source video codec for the web

Jim Bankoski, Paul Wilkins, Yaowu Xu
2011 2011 IEEE International Conference on Multimedia and Expo  
Bastiaan Kleijn at the School of Electrical Engineering at KTH (the Royal Institute of Technology) in Stockholm, Sweden for reviewing early drafts, the paper has benefited a great deal from his valuable  ...  Frame Adaptive Entropy Context VP8 uses conditional probability distribution to model the context used for entropy coding of information such as macroblock coding modes, motion vectors, and quantized transform  ...  HYBRID TRANSFORM WITH ADAPTIVE QUANTIZATION Similarly to previous image and video coding schemes [2] [3] [4] , VP8 uses transform coding to code residue signal after intra or inter predictions.  ... 
doi:10.1109/icme.2011.6012227 dblp:conf/icmcs/BankoskiWX11 fatcat:sct5gohjvvab3abyh6yu7tjrxm

Video Coding Based on Shape-Adaptive All Phase Biorthogonal Transform and MPEG-4

Xiaoyan Wang, Chengyou Wang, Xiao Zhou, Zhiqiang Yang
2015 Journal of Communications  
Shape coding uses context-based arithmetic encoding (CAE). SA-APBT and uniform quantization method are adopted in texture coding.  ...  Index Terms-Video coding, MPEG-4, shape-adaptive all phase biorthogonal transform (SA-APBT), video object  ...  Binary shape coding is implemented by context-based arithmetic encoding (CAE). There are two CAE types: intra-frame CAE and inter-frame CAE. C.  ... 
doi:10.12720/jcm.10.12.1004-1011 fatcat:u32yoht4hjdfjpg2y4hty2ealq

Adaptive re-quantization for high dynamic range video compression

Mikael Le Pendu, Christine Guillemot, Dominique Thoreau
2014 2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)  
They are adapted to different quality requirements. In particular, near lossless compression is addressed.  ...  In figure 5, inter and intra coding are compared at different bit depths for GOP-wise and frame-wise variants.  ...  A GOP-wise adaptation was proposed to keep temporal coherence for inter predictions.  ... 
doi:10.1109/icassp.2014.6855031 dblp:conf/icassp/PenduGT14 fatcat:2w627n42nja47da4ltnjlhmjze

Adaptive Spatial and Transform Domain FGS Coding

Li Zhang, Xiangyang Ji, Wen Gao, Debin Zhao
2007 Multimedia and Expo, 2007 IEEE International Conference on  
A good solution is to omit transform operations for the predicted errors of those inter-blocks with low correlation before quantization operation.  ...  In this paper, an adaptive prediction error coding method in spatial and frequency domain with lower complexity is considered for FGS layer coding.  ...  ENTROPY CODING For entropy coding of the quantized residuals in the spatial domain, Context-based Adaptive Binary Arithmetic Coding (CABAC) for the quantized coefficients in the frequency domain can be  ... 
doi:10.1109/icme.2007.4284903 dblp:conf/icmcs/ZhangJGZ07 fatcat:dhm4zg3mtzdavaq4rhxw6jve3e


Chitradevi S .
2014 International Journal of Research in Engineering and Technology  
This prediction generates residual data that can be transformed and encoded using Context Adaptive Binary Arithmetic Coding (CABAC).  ...  This paper proposes, an Advanced Document Coding (ADC), which was a H.264/AVC (Advance Video Coding) video coding standard for compressing the scanned document.  ...  Then, in the decoding phase, inverse quantization and inverse transformation are done and the frames are reconstructed.  ... 
doi:10.15623/ijret.2014.0319132 fatcat:pbo45256r5dmjn3jbiij46j62q

Simulation and Performance Enhancement of High Efficiency Video Coding Standard for Video Compression

The only solution to fight with is the video compression techniques/ standards.The High efficiency video coding standard(H.265/ HEVC) is newly evolved standard that is popularly used. this standard is  ...  This research work deals with narrates the steps of implementation, simulation with MATLAB and the results obtained. from the obtained results, the 4G technique for wireless communication has been obtained  ...  Shah University for supporting us in the research work by providing the technical platform and giving us an opportunity to develop ourselves.  ... 
doi:10.35940/ijitee.j1108.0981119 fatcat:pihjyz5rfbeu3fcsmhvfi466wy

Statistical reconstruction for predictive video coding

Catarina Brites, Vitor Gomes, Joao Ascenso, Fernando Pereira
2014 2014 IEEE Visual Communications and Image Processing Conference  
These are called context-adaptive variable length coding (CAVLC) and context-adaptive binary arithmetic coding (CABAC). CABAC has higher complexity than CAVLC but has better coding efficiency.  ...  By introducing the adaptive rounding offset method into the rate control process, the control error for most frames is reduced to 0.5% or lower for Intra frames and around 2% for Inter frames.  ...  the reconstructed value for each DCT coefficient and should enhance the standard H.264/AVC inverse quantization approach, which does not consider the motion compensated (or Intra) prediction (only the  ... 
doi:10.1109/vcip.2014.7051624 dblp:conf/vcip/BritesGA014 fatcat:5mjqqebnmjfonfvm3kjlw7vera


Manjanaik.N .
2013 International Journal of Research in Engineering and Technology  
This paper proposes selection of Intra prediction modes for Intra frame coding in Advanced Video Coding Standard using Matlab. The proposed algorithm selects prediction modes for intra frame coding.  ...  The PSNR , compressed ratio and bit rate achived for different quantization parameters of mother daughter frames , foreman frames was presented.  ...  The h.264 encoder block consists of integer transform, quantization context adaptive variable length coding, inverse quantization, invese transformation, intra prediction unit and deblocking filter.  ... 
doi:10.15623/ijret.2013.0212012 fatcat:33gfvjlcfraf7bgroar7sqy65y

H.264/AVC Video Compression on Smartphones

M P Sharabayko, N G Markov
2017 Journal of Physics, Conference Series  
These values are presented as a sequence of binary codes using variable length coding The H.264/AVC video compression standard provides two entropy coders: Context Length Coding (CAVLC) and Context-Adaptive  ...  Intra current video frame and is based upon the compressed and decoded data available for the blo predicted. Inter-prediction is used for motion compensation: previously coded frame.  ... 
doi:10.1088/1742-6596/803/1/012141 fatcat:wh7vgzd2grbrtdddjncw2l6gw4

Comparative Study Of H.265 & H.264 Video Compression

Khan Adil Parvez*, Sanjeev Kumar Shrivastava
2016 Zenodo  
Work on the emerging "Advanced Video Coding" (AVC) standard now known as ITU-T(International Telecommunication Union) Recommendation H.264 and as ISO 14496(International Organization For Standards) (MPEG  ...  -4) Part 10 has dominated the video coding standardization community.  ...  Variable Length Coding (VLC) and Context Adaptive Binary Arithmetic Coding (CABAC) can be used.  ... 
doi:10.5281/zenodo.48845 fatcat:zr63ii47u5eldn5iqb5l4bdidi

Design of the H264 application and Implementation on Heterogeneous Architectures

Chahrazed Adda, Abou Elhassen
2017 International Journal of Computer Applications  
Multimedia applications are present in most mobile hand-held devices.H.264 is an emerging video coding standard, which aims at compressing high-quality video contents at low-bit rates.  ...  Furthermore, video coding standards like H.264/AVC [3] and HEVC [4] are adopting complex algorithms like context-adaptive binary arithmetic coding (CABAC) and variable length coding (CAVLC) in order  ...  For next P frames, each macroblock can be coded intra (4x4 or 16x16) or inter prediction. The 4x4 intra prediction modes are suitable for significant details within a frame.  ... 
doi:10.5120/ijca2017916056 fatcat:ciluiuzu55gctnd23iifvqagqy

Adaptive MCTF based on Correlation Noise Model for SNR Scalable Video Coding

Ruiqin Xiong, Jizheng Xu, Feng Wu, Shipeng Li
2006 2006 IEEE International Conference on Multimedia and Expo  
This paper proposes a subband adaptive motion compensated temporal filtering (MCTF) technique for scalable video coding and introduces a revised synthesis gain model for the quantization in this adaptive  ...  In this way an adaptive MCTF scheme is formed and the proposed technique improves the coding performance of scalable video coding.  ...  Section 2 reviews the MCTF in scalable video coding and analyzes the correlation-noise characteristics of inter-frame prediction in MCTF. Section 3 describes the proposed adaptive MCTF algorithm.  ... 
doi:10.1109/icme.2006.262918 dblp:conf/icmcs/XiongXWL06 fatcat:lsvj5i476rbnljrnb6lp34xujy


2011 International Journal of Wavelets, Multiresolution and Information Processing  
Entropy coding design including -Context-adaptive binary arithmetic coding (CABAC), Context-adaptive variable-length coding (CAVLC) and Variable length coding (VLC) techniques.  ...  CAVLC (Context-based Adaptive Variable Length Coding) and CABAC (Context-based Adaptive Binary Arithmetic Coding).CAVLC handles the zero and +/-1 coefficients based on the levels of the coefficients.  ... 
doi:10.1142/s0219691311004341 fatcat:cpqfhtiy4zhoxo27k27kpegt6m
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