Results 1 to 10 of about 578 (98)

FLoCIC: A Few Lines of Code for Raster Image Compression [PDF]

open access: yesEntropy, 2023
A new approach is proposed for lossless raster image compression employing interpolative coding. A new multifunction prediction scheme is presented first.
Borut Žalik   +8 more
doaj   +2 more sources

A case study on entropy-aware block-based linear transforms for lossless image compression [PDF]

open access: yesScientific Reports
Data compression algorithms tend to reduce information entropy, which is crucial, especially in the case of images, as they are data intensive. In this regard, lossless image data compression is especially challenging.
Borut Žalik   +4 more
doaj   +2 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

Lossless and Near-Lossless L-Infinite Compression of Depth Video Data [PDF]

open access: yesSensors
The acquisition of depth information sensorial data is critically important in medical applications, such as the monitoring of the elderly or the extraction of human biometrics.
Mohammad Ali Tahouri   +3 more
doaj   +2 more sources

Lossless Image Compression Using Context-Dependent Linear Prediction Based on Mean Absolute Error Minimization [PDF]

open access: yesEntropy
This paper presents a method for lossless compression of images with fast decoding time and the option to select encoder parameters for individual image characteristics to increase compression efficiency.
Grzegorz Ulacha, Mirosław Łazoryszczak
doaj   +2 more sources

Non-Uniform Entropy-Constrained L∞ Quantization for Sparse and Irregular Sources [PDF]

open access: yesEntropy
Near-lossless coding schemes traditionally rely on uniform quantization to control the maximum absolute error (L∞ norm) of residual signals, often assuming a parametric model for the source distribution. This paper introduces a novel design framework for
Alin-Adrian Alecu   +3 more
doaj   +2 more sources

CARNet: Context-Aware Residual Learning for JPEG-LS Compressed Remote Sensing Image Restoration

open access: yesRemote Sensing, 2022
JPEG-LS (a lossless (LS) compression standard developed by the Joint Photographic Expert Group) compressed image restoration is a significant problem in remote sensing applications. It faces the following two challenges: first, bridging small pixel-value
Maomei Liu   +5 more
doaj   +1 more source

LOCO-ANS: An Optimization of JPEG-LS Using an Efficient and Low-Complexity Coder Based on ANS

open access: yesIEEE Access, 2021
Near-lossless compression is a generalization of lossless compression, where the codec user is able to set the maximum absolute difference (the error tolerance) between the values of an original pixel and the decoded one.
Tobias Alonso   +2 more
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

Research on Lossless Compression Coding Algorithm of N-Band Parametric Spectral Integer Reversible Transformation Combined With the Lifting Scheme for Hyperspectral Images

open access: yesIEEE Access, 2022
After considering the spectral correlation of structure and statistics of the hyperspectral image, the redundancy reduction is optimized using reversible transformation of integer matrices in conjunction with the N-band integer reversible transformation ...
Changcheng Li   +4 more
doaj   +1 more source

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