Results 11 to 20 of about 3,598 (204)

A high speed and memory efficient algorithm for perceptually-lossless volumetric medical image compression

open access: yesJournal of King Saud University: Computer and Information Sciences, 2022
With the advancements in modern medical imaging systems, the diagnostic image data has increased exponentially. The future medical applications seek medical imaging devices to be portable. Image quality and real-time processing are of prime importance in
Mohd Rafi Lone
doaj   +1 more source

Lossless linear analog compression [PDF]

open access: yes2016 IEEE International Symposium on Information Theory (ISIT), 2016
We establish the fundamental limits of lossless linear analog compression by considering the recovery of random vectors ${\boldsymbol{\mathsf{x}}}\in{\mathbb R}^m$ from the noiseless linear measurements ${\boldsymbol{\mathsf{y}}}=\boldsymbol{A}{\boldsymbol{\mathsf{x}}}$ with measurement matrix $\boldsymbol{A}\in{\mathbb R}^{n\times m}$.
Giovanni Alberti   +4 more
openaire   +2 more sources

Lossless data compression of grid-based digital elevation models: A png image format evaluation [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
At present, computers, lasers, radars, planes and satellite technologies make possible very fast and accurate topographic data acquisition for the production of maps. However, the problem of managing and manipulating this data efficiently remains.
G. Scarmana
doaj   +1 more source

Joint Lossless Image Compression and Encryption Scheme Based on CALIC and Hyperchaotic System

open access: yesEntropy, 2021
For efficiency and security of image transmission and storage, the joint image compression and encryption method that performs compression and encryption in a single step is a promising solution due to better security.
Miao Zhang   +3 more
doaj   +1 more source

Lossless compression with security constraints [PDF]

open access: yes2008 IEEE International Symposium on Information Theory, 2008
Proceedings of the 2008 IEEE International Symposium on Information Theory, Toronto, ON, Canada, July 6 - 11 ...
Deniz Gündüz   +2 more
openaire   +3 more sources

HOW DOES SHANNON’S SOURCE CODING THEOREM FARE IN PREDICTION OF IMAGE COMPRESSION RATIO WITH CURRENT ALGORITHMS? [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Images with large volumes are generated daily with the advent of advanced sensors and platforms (e.g., satellite, unmanned autonomous vehicle) of data acquisition. This incurs issues on the storage, processing, and transmission of images. To address such
X. Cheng, Z. Li, Z. Li
doaj   +1 more source

FCLQC: fast and concurrent lossless quality scores compressor

open access: yesBMC Bioinformatics, 2021
Background Advances in sequencing technology have drastically reduced sequencing costs. As a result, the amount of sequencing data increases explosively.
Minhyeok Cho, Albert No
doaj   +1 more source

Lossless Compression of Hexahedral Meshes [PDF]

open access: yesData Compression Conference (dcc 2008), 2008
Many science and engineering applications use high-resolution unstructured hexahedral meshes to model solid 3D shapes for finite element simulations. These simulations frequently dump the mesh and associated fields to disk for subsequent analysis, which involves the transfer of huge volumes of data.
Peter Lindstrom 0001, Martin Isenburg
openaire   +1 more source

Reversible Integer-to-Integer Wavelet Filter Design for Lossless Image Compression

open access: yesIEEE Access, 2020
In this paper, factors that influence the lossless compression efficiency of reversible integer-tointeger (ITI) wavelet filters are presented. It is observed that there is a converged region for the bitrate of the compressed subbands.
Jianyu Lin
doaj   +1 more source

Lossless Compression with Probabilistic Circuits

open access: yesCoRR, 2021
Despite extensive progress on image generation, common deep generative model architectures are not easily applied to lossless compression. For example, VAEs suffer from a compression cost overhead due to their latent variables. This overhead can only be partially eliminated with elaborate schemes such as bits-back coding, often resulting in poor single-
Anji Liu   +2 more
openaire   +3 more sources

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