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Stereoscopic Visual Attention-Based Regional Bit Allocation Optimization for Multiview Video Coding
2010
EURASIP Journal on Advances in Signal Processing
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We propose a Stereoscopic Visual Attention-(SVA-) based regional bit allocation optimization for Multiview Video Coding (MVC) by the exploiting visual redundancies from human perceptions. ...
Finally, by using the extracted SVA-based ROIs, a regional bit allocation optimization scheme is presented to allocate more bits on SVA-based ROIs for high image quality and fewer bits on background regions ...
Acknowledgments The Interactive Visual Media Group at Microsoft Research, HHI, and Nagoya University have kindly provided The authors with multiview video sequences and depth maps. ...
doi:10.1155/2010/848713
fatcat:cl5nl7u7efbefbwjsk4j5ius6e
Rate Control Technology for Next Generation Video Coding Overview and Future Perspective
2022
Electronics
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It not only needs to consider the buffer and network status but also adjust the corresponding bit rate according to the video content. ...
This paper reviews the related technologies of rate control under high efficiency video coding (HEVC) and versatile video coding (VVC) standards so that subsequent researchers can quickly understand the ...
Joint Collaborative Group for the Development of 3D Video Coding Extensions (JCT-3V) to work on multi-view and 3D video coding extensions to other video coding standards for HEVC. ...
doi:10.3390/electronics11234052
fatcat:fv73raizt5hzddlto6m24plpii
A Survey on Perceptually Optimized Video Coding
[article]
2022
arXiv
pre-print
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Thirdly, we review perceptual video coding optimizations from four key aspects, including perceptually optimized bit allocation, rate-distortion optimization, transform and quantization, filtering and ...
Firstly, we present problem formulation and framework of the perceptually optimized video coding, which includes visual perception modelling, visual quality assessment and perceptual video coding optimization ...
Further investigations on 3D visual perception, 3D VQA and 3D perceptual coding for high dimensional videos will be interesting. 5) Perceptually Optimized Deep Visual Model. ...
arXiv:2112.12284v2
fatcat:epphkkngbbdpreaxqkekssufli
A Survey on Perceptually Optimized Video Coding
2022
ACM Computing Surveys
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Thirdly, we review perceptual video coding optimizations from four key aspects, including perceptually optimized bit allocation, rate-distortion optimization, transform and quantization, filtering and ...
Firstly, we present problem formulation and framework of the perceptually optimized video coding, which includes visual perception modelling, visual quality assessment and perceptual video coding optimization ...
Further investigations on 3D visual perception, 3D VQA and 3D perceptual coding for high dimensional videos will be interesting. 5) Perceptually Optimized Deep Visual Model. ...
doi:10.1145/3571727
fatcat:qtptujvhb5e6phz64jw2xzf32m
Focus on visual rendering quality through content-based depth map coding
2010
28th Picture Coding Symposium
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This paper points out the problem of reliability, concerning this metric, when estimating 3D video codec performances. ...
Multi-view video plus depth (MVD) data is a set of multiple sequences capturing the same scene at different viewpoints, with their associated per-pixel depth value. ...
As a result, measuring and optimizing the visual quality of encoded 3D video sequences can rely on the assessment of the distortion of such a rendered view. ...
doi:10.1109/pcs.2010.5702448
dblp:conf/pcs/BoscPM10
fatcat:b7bofhm5urfx5o3llf24k4oiwa
A Survey on QoE-Oriented VR Video Streaming: Some Research Issues and Challenges
2021
Electronics
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Third, the modeling of QoE for VR video streaming, the QoE-oriented VR optimization problem, and enabling techniques of machine learning for VR video streaming improvement are summarized. ...
The review in this paper focuses on a comprehensive summary of the current state of quality-of-experience (QoE) technologies applied to VR video streaming. ...
[51] optimized an adaptive omnidirectional video (ODV) streamer by means of an introduced visual-attention metric to achieve optimal streaming for each selected mode using a bit rate-allocation strategy ...
doi:10.3390/electronics10172155
fatcat:pvpkwg52sff6nf6ximtli7elpa
Proceedings of 3rd IEEE International Conference on Image Processing
1996
Proceedings of 3rd IEEE International Conference on Image Processing ICIP-96
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for very low bit rate video coding A pseudo object-oriented very low bit rate video coding system with cache VQ for detail compensation Chung-Wei W. ...
subsampled interframes for image sequence coding Compression of fingerprint images using hybrid image model An approach to region coding for content-based scalable video Optimal bit allocation for video ...
doi:10.1109/icip.1996.559416
fatcat:jb4cdydgf5edtdljfuzj423ozu
International Conference on Image Processing
1996
Proceedings of 3rd IEEE International Conference on Image Processing
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for very low bit rate video coding A pseudo object-oriented very low bit rate video coding system with cache VQ for detail compensation Chung-Wei W. ...
subsampled interframes for image sequence coding Compression of fingerprint images using hybrid image model An approach to region coding for content-based scalable video Optimal bit allocation for video ...
doi:10.1109/icip.1996.560353
fatcat:le3ysy6wxrfr7nq56ueropy7tu
Adaptive 360 VR Video Streaming: Divide and Conquer!
[article]
2017
arXiv
pre-print
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We spatially partition the underlying 3D mesh, and construct an efficient 3D geometry mesh called hexaface sphere to optimally represent a tiled 360 VR video in the 3D space. ...
Field of View (FoV). ...
This tweak minimizes any possible edged views on the tile boundaries, therefore enabling a smooth viewing experience in the tiled 360 VR Algorithm 2: Rate allocation heuristic algorithm T : prioritized ...
arXiv:1609.08729v5
fatcat:7srvgshhlbdh7cpxjc3ym327wi
Depth-Image Compression Based on an R-D Optimized Quadtree Decomposition for the Transmission of Multiview Images
2007
2007 IEEE International Conference on Image Processing
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This paper presents a novel depth-image coding algorithm that concentrates on the special characteristics of depth images: smooth regions delineated by sharp edges. ...
The subdivision of the quadtree and the selection of the type of modeling function is optimized such that a global rate-distortion trade-off is realized. ...
R-D OPTIMIZED BIT-ALLOCATION In this section, we aim at providing details about the bit-allocation strategy that optimizes the coding in a rate-distortion sense. ...
doi:10.1109/icip.2007.4379776
dblp:conf/icip/MorvanFW07a
fatcat:u2cugmncpfhg7hbbmbbiy6kq7m
Intra-frame depth image compression based on anisotropic partition scheme and plane approximation
2009
Proceedings of the 2nd International ICST Conference on Immersive Telecommunications
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3D video can be represented by color 2D video sequence accompanied by gray-scale dense depth map (depth image) sequence. ...
For such images, conventional transformbased coders produce undesirable artifacts which impede the subsequent rendering of virtual views. ...
INTRODUCTION Processing of 3D video is an active area of research with 3DTV and free view-point TV (FTV) being the most appealing applications [12] . ...
doi:10.4108/immerscom.2009.15
dblp:conf/immerscom/PonomarenkoLGE09
fatcat:ezdn2lxzg5arnbmiedehsaitti
Character index
2011
2011 IEEE International Conference on Multimedia and Expo
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WITH VIEW SYNTHESIS BIT ALLOCATION FOR MULTIVIEW IMAGE COMPRESSION USING CUBIC SYNTHESIZED VIEW DISTORTION MODEL Yves Chiaramella A NEW ROI GROUPING SCHEMA FOR AUTOMATIC IMAGE ANNOTATION Shao Yi Chien ...
OF SOCIAL GATHERINGS BY DETECTING CAMERA FLASH ILLUMINATED FRAMES BIT ALLOCATION FOR MULTIVIEW IMAGE COMPRESSION USING CUBIC SYNTHESIZED VIEW DISTORTION MODEL Anastasios Venetsanopoulos AUDIOVISUAL EMOTION ...
doi:10.1109/icme.2011.6011827
fatcat:wjy7yvkmvbbf3hj4wbyjapx5gu
A Study on the Usage of Cross-Layer Power Control and Forward Error Correction for Embedded Video Transmission over Wireless Links
2007
Advances in Multimedia
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The paper aims at providing an analytical framework for the study of single-hop video delivery over a wireless link, enabling cross-layer interactions for performance optimization using power control and ...
The analysis is performed using rate-distortion information of an embedded video bitstream jointly with a Lagrangian power minimization approach. ...
Wavelets can be further used in video compression. For example, 3D wavelet coding schemes, such as 3D SPHIT [30] , can be used in obtaining embedded bitstreams of video data. ...
doi:10.1155/2007/95807
fatcat:y2cuvv4npvhgjn4xrifqonwofe
360-Degree Video Streaming: A Survey of the State of the Art
2020
Symmetry
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360-degree video streaming is expected to grow as the next disruptive innovation due to the ultra-high network bandwidth (60–100 Mbps for 6k streaming), ultra-high storage capacity, and ultra-high computation ...
Next, the latest ongoing standardization efforts for enhanced degree-of-freedom immersive experience are presented. ...
Acknowledgments: We would like to thank Kaifang Yang from Shaanxi Normal University for his insightful comments to improve the quality of the manuscript. ...
doi:10.3390/sym12091491
fatcat:wciqpwsi75grffl2ug73uzsbsm
User Centered Adaptive Streaming of Dynamic Point Clouds with Low Complexity Tiling
2020
Proceedings of the 28th ACM International Conference on Multimedia
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state of the art solutions for point cloud compression, performed on the collected navigation paths, confirms that considerable gains can be obtained by exploiting user-adaptive streaming, achieving bitrate ...
The authors would also like to thank Dick Broekhuis and the management and support staff at CWI for their help and support during the COVID-19 pandemic. ...
This approach is included in the Motion Controlled Tile Sets (MCTS) coding included in the High Efficiancy Video Coding (HEVC) codec [16] . ...
doi:10.1145/3394171.3413535
dblp:conf/mm/SubramanyamVHC20
fatcat:qidwsfbqdbeqjphyasmrgfdyl4
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