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Modified Hilbert Curve for Rectangles and Cuboids and Its Application in Entropy Coding for Image and Video Compression [PDF]

open access: yesEntropy, 2021
In our previous work, by combining the Hilbert scan with the symbol grouping method, efficient run-length-based entropy coding was developed, and high-efficiency image compression algorithms based on the entropy coding were obtained.
Yibiao Rong, Xia Zhang, Jianyu Lin
doaj   +2 more sources

Fast and Efficient Entropy Coding Architectures for Massive Data Compression

open access: yesTechnologies, 2023
The compression of data is fundamental to alleviating the costs of transmitting and storing massive datasets employed in myriad fields of our society. Most compression systems employ an entropy coder in their coding pipeline to remove the redundancy of ...
Francesc Auli-Llinas
exaly   +3 more sources

Entropy-Based Fast Largest Coding Unit Partition Algorithm in High-Efficiency Video Coding

open access: yesEntropy, 2013
High-efficiency video coding (HEVC) is a new video coding standard being developed by the Joint Collaborative Team on Video Coding. HEVC adopted numerous new tools, such as more flexible data structure representations, which include the coding unit (CU),
Jianfeng Qu
exaly   +3 more sources

Lossless and Near-Lossless Image Compression Using Generalized Multi-Context Linear and Nonlinear Prediction [PDF]

open access: yesEntropy
The paper proposes the Multi-ctx2 method, which enables image compression in lossless and near-lossless modes. It employs a generalized multi-context division method in the prediction stage, which is more efficient than other fast prediction methods ...
Grzegorz Ulacha, Mirosław Łazoryszczak
doaj   +2 more sources

Secure Real-Time Chaotic Partial Encryption of Entropy-Coded Multimedia Information for Mobile Devices: Smartphones

open access: yesIEEE Access, 2022
Smartphones penetration-rate continues expanding, from 44% in 2017 up to 59% expected increase in 2022 as reported by Strategy Analytics.
Rogelio Hasimoto-Beltran   +2 more
doaj   +1 more source

A Highly Pipelined and Highly Parallel VLSI Architecture of CABAC Encoder for UHDTV Applications

open access: yesSensors, 2023
Recently, specifically designed video codecs have been preferred due to the expansion of video data in Internet of Things (IoT) devices. Context Adaptive Binary Arithmetic Coding (CABAC) is the entropy coding module widely used in recent video coding ...
Chen Fu   +3 more
doaj   +1 more source

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

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

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

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

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