Representations Are Rate-Distortion Sweet Spots
Sign Up to like & getrecommendations! Published in 2019 at "Philosophy of Science"
DOI: 10.1086/705493
Abstract: Theorists working on information and representation are often not centrally concerned with “Shannon” information, as it is often put, but with some other, sometimes called “semantic,” kind of information. This perception is wrong. Shannon’s theory… read more here.
Keywords: sweet spots; representations rate; information; distortion sweet ... See more keywords
Perceptually Adaptive Lagrangian Multiplier for HEVC Guided Rate-Distortion Optimization
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Access"
DOI: 10.1109/access.2018.2843384
Abstract: Recent video coding standards typically use the Rate-distortion optimization (RDO) method, which is essential to appropriately perform mode decisions during encoding process. The newest standard high efficiency video coding (HEVC) introduces complex encoding structures and… read more here.
Keywords: hevc; distortion optimization; rate; lagrangian multiplier ... See more keywords
Rate-Distortion Optimization Based on Two-Pass Encoding for HEVC
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Access"
DOI: 10.1109/access.2021.3123393
Abstract: Rate-distortion optimization (RDO) is a crucial technique in block-based hybrid video encoders, which determines the coding option for a certain coding unit to achieve optimal rate-distortion (R-D) performance. However, the current RDO, which is implemented… read more here.
Keywords: distortion optimization; rate; two pass; rate distortion ... See more keywords
Vector Gaussian Rate-Distortion With Variable Side Information
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Information Theory"
DOI: 10.1109/isit.2014.6874973
Abstract: We consider rate-distortion with two decoders, each with distinct side information. This problem is well understood when the side information at the decoders satisfies a certain degradedness condition. We consider cases in which this degradedness… read more here.
Keywords: information; rate distortion; side information;
Optimal Rate-Distortion-Leakage Tradeoff for Single-Server Information Retrieval
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Journal on Selected Areas in Communications"
DOI: 10.1109/jsac.2022.3142296
Abstract: Private information retrieval protocols guarantee that a user can privately and losslessly retrieve a single file from a database stored across multiple servers. In this work, we propose to simultaneously relax the conditions of perfect… read more here.
Keywords: tradeoff; leakage; rate distortion; information ... See more keywords
Rate-Distortion Optimized Graph for Point Cloud Attribute Coding
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Signal Processing Letters"
DOI: 10.1109/lsp.2022.3161868
Abstract: Recent years have witnessed remarkable success of Graph Fourier Transform (GFT) in point cloud attribute compression. Existing researches mainly utilize geometry distance to define graph structure for coding attribute (e.g., color), which may distribute high… read more here.
Keywords: cloud attribute; rate distortion; point cloud; geometry ... See more keywords
Fast Rate-Distortion Optimization for Depth Maps in 3-D Video Coding
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Broadcasting"
DOI: 10.1109/tbc.2022.3192992
Abstract: To ensure the fidelity of virtual views, rate-distortion optimization (RDO) criterion for the 3D extension of the High Efficiency Video Coding (3D-HEVC) is well designed, in which the synthesized view distortion (SVD) is introduced to… read more here.
Keywords: depth; cost; distortion; rate ... See more keywords
Rate-Distortion Performance of Lossy Compressed Sensing of Sparse Sources
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2018.2834349
Abstract: We investigate lossy compressed sensing (CS) of a hidden, or remote, source, where a sensor observes a sparse information source indirectly. The compressed noisy measurements are communicated to the decoder for signal reconstruction with the… read more here.
Keywords: compressed sensing; distortion; rate distortion; lossy compressed ... See more keywords
An Indirect Rate-Distortion Characterization for Semantic Sources: General Model and the Case of Gaussian Observation
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2022.3194978
Abstract: A new source model, which consists of an intrinsic state part and an extrinsic observation part, is proposed and its information-theoretic characterization, namely its rate-distortion function, is defined and analyzed. Such a source model is… read more here.
Keywords: distortion; rate; rate distortion; model ... See more keywords
Rate-Distortion Optimization Using Adaptive Lagrange Multipliers
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Circuits and Systems for Video Technology"
DOI: 10.1109/tcsvt.2018.2873837
Abstract: In current standardized hybrid video encoders, the Lagrange multiplier determination model is a key component in rate-distortion optimization. This originated some 20 years ago based on an entropy-constrained high-rate approximation and experimental results obtained using… read more here.
Keywords: lagrange; rate distortion; lagrange multiplier; distortion optimization ... See more keywords
Rate-Distortion-Complexity Optimized Coding Mode Decision for HEVC
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Circuits and Systems for Video Technology"
DOI: 10.1109/tcsvt.2019.2893396
Abstract: The newest generation of video coding standard, high efficiency video coding (HEVC), significantly improves the video compression efficiency by introducing more flexible block partitioning structures and richer coding modes than those of the previous coding… read more here.
Keywords: coding mode; rate distortion; rate; complexity ... See more keywords