Results 31 to 40 of about 131,990 (294)

Precise Estimation of Probabilities in CABAC Using the Cauchy Optimization Method

open access: yesIEEE Access, 2020
The algorithm of entropy coding that is now widely used in video compression is the Context-based Adaptive Binary Arithmetic Coding (CABAC). This paper presents a modified, improved version of CABAC, called the CABAC+.
Damian Karwowski
doaj   +1 more source

Entropy Coding in HEVC [PDF]

open access: yes, 2014
Context-Based Adaptive Binary Arithmetic Coding (CABAC) is a method of entropy coding first introduced in H.264/AVC and now used in the latest High Efficiency Video Coding (HEVC) standard. While it provides high coding efficiency, the data dependencies in H.264/AVC CABAC make it challenging to parallelize and thus limit its throughput.
Sze, Vivienne, Marpe, Detlev
openaire   +2 more sources

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

Lecture on Entropy Coding [PDF]

open access: yes, 2010
Considers entropy, fixed length coding, Huffman coding and arithmetic ...
Maunder, Rob
core  

Source coding with escort distributions and Renyi entropy bounds [PDF]

open access: yes, 2009
We discuss the interest of escort distributions and R\'enyi entropy in the context of source coding. We first recall a source coding theorem by Campbell relating a generalized measure of length to the R\'enyi-Tsallis entropy.
Bercher, J. -F.
core   +7 more sources

Entropy coding for Networked Controlled Systems [PDF]

open access: yes2007 European Control Conference (ECC), 2007
The aim of this paper is to explore yet another variant of the Delta-Modulation Coding structure to improve data transmission efficiency in the context of Networked Controlled Systems. High compression rates can only be reached by the use of entropy coding. Entropy coding assigns some probability distribution to the events.
Canudas de Wit, Carlos   +2 more
openaire   +2 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Lightweight Cipher for H.264 Videos in the Internet of Multimedia Things with Encryption Space Ratio Diagnostics

open access: yesSensors, 2019
Within an Internet of Multimedia Things, the risk of disclosing streamed video content, such as that arising from video surveillance, is of heightened concern. This leads to the encryption of that content.
Amna Shifa   +4 more
doaj   +1 more source

Entropy Concentration and the Empirical Coding Game

open access: yes, 2008
We give a characterization of Maximum Entropy/Minimum Relative Entropy inference by providing two `strong entropy concentration' theorems. These theorems unify and generalize Jaynes' `concentration phenomenon' and Van Campenhout and Cover's `conditional ...
Cover   +15 more
core   +2 more sources

Entropy coding with variable length re-writing systems [PDF]

open access: yesProceedings. International Symposium on Information Theory, 2005. ISIT 2005., 2005
This paper describes a new set of block source codes well suited for data compression. These codes are defined by sets of productions rules of the form a.l->b, where a in A represents a value from the source alphabet A and l, b are -small- sequences of bits. These codes naturally encompass other Variable Length Codes (VLCs) such as Huffman codes. It
Jégou, Hervé, Guillemot, Christine
openaire   +3 more sources

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