Results 11 to 20 of about 26,331 (257)

Energy and Performance Analysis of Lossless Compression Algorithms for Wireless EMG Sensors

open access: yesSensors, 2021
Electromyography (EMG) sensors produce a stream of data at rates that can easily saturate a low-energy wireless link such as Bluetooth Low Energy (BLE), especially if more than a few EMG channels are being transmitted simultaneously. Compressing data can
Giorgio Biagetti   +4 more
doaj   +1 more source

Entropy Vectors and Network Codes [PDF]

open access: yes2007 IEEE International Symposium on Information Theory, 2007
We consider a network multicast example that relates the solvability of the multicast problem with the existence of an entropy function. As a result, we provide an alternative approach to the proving of the insufficiency of linear (and abelian) network codes and demonstrate the utility of non-Shannon inequalities to tighten outer bounds on network ...
Terence Chan, Alex J. Grant
openaire   +2 more sources

An improved symbol reduction technique based Huffman coder for efficient entropy coding in the transform coders

open access: yesIET Image Processing, 2021
Entropy coding is the essential block of transform coders that losslessly converts the quantized transform coefficients into the bit‐stream suitable for transmission or storage.
Vikrant Singh Thakur   +2 more
doaj   +1 more source

Lightweight Compression with Encryption Based on Asymmetric Numeral Systems

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2023
Data compression combined with effective encryption is a common requirement of data storage and transmission. Low cost of these operations is often a high priority in order to increase transmission speed and reduce power usage.
Duda Jarosław, Niemiec Marcin
doaj   +1 more source

Prediction Method for Image Coding Quality Based on Differential Information Entropy

open access: yesEntropy, 2014
For the requirement of quality-based image coding, an approach to predict the quality of image coding based on differential information entropy is proposed.
Xin Tian, Tao Li, Jin-Wen Tian, Song Li
doaj   +1 more source

Lossless Image Coding Using Non-MMSE Algorithms to Calculate Linear Prediction Coefficients

open access: yesEntropy, 2023
This paper presents a lossless image compression method with a fast decoding time and flexible adjustment of coder parameters affecting its implementation complexity.
Grzegorz Ulacha, Mirosław Łazoryszczak
doaj   +1 more source

Effect of Baking Temperature on Carotenoids and Provitamin A in Bread made with Mandarin (Citrus reticulata) Epicarp Extract

open access: yesTecnoLógicas, 2023
Consumers are interested in products with functional properties that contribute to their well-being and health. An alternative source of functional ingredients would be the by-products of the citrus industry, which can be used as natural additives in ...
Luis E. Ordóñez-Santos*   +2 more
doaj   +1 more source

Lossy Joint Source-Channel Coding Using Raptor Codes

open access: yesInternational Journal of Digital Multimedia Broadcasting, 2008
The straightforward application of Shannon's separation principle may entail a significant suboptimality in practical systems with limited coding delay and complexity.
O. Y. Bursalioglu   +3 more
doaj   +1 more source

On Transmitted Complexity Based on Modified Compound States

open access: yesEntropy, 2023
Based on the classical dynamical entropy, the channel coding theorem is investigated. Attempts to extend the dynamical entropy to quantum systems have been made by several researchers In 1999, Kossakowski, Ohya and I introduced the quantum dynamical ...
Noboru Watanabe
doaj   +1 more source

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

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