Results 41 to 50 of about 35,976 (328)

One-shot lossy quantum data compression [PDF]

open access: yes, 2013
We provide a framework for one-shot quantum rate distortion coding, in which the goal is to determine the minimum number of qubits required to compress quantum information as a function of the probability that the distortion incurred upon decompression ...
Datta, Nilanjana   +3 more
core   +3 more sources

Preliminary analysis of noisy image lossy compression by discrete atomic transform-based coder

open access: yesАвіаційно-космічна техніка та технологія, 2023
Remote sensing provides data (images) important for many modern applications. Image number and average size tend to increase. This makes their transfer via communication lines, storage, and dissemination problematic.
Viktor Makarichev   +2 more
doaj   +1 more source

IWCD-PROPOSED IMAGE COMPRESSION METHOD BASED ON INTEGER WAVELET AND DCT [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2008
This paper describes a new lossy image compression decompression algorithm. In lossy compression techniques there are some loss of information, and image cannot be reconstructed exactly.This algorithm will be referred to as (IWDC), which stands for ...
Abdullah.M.Awad Al-Fahdawi
doaj   +1 more source

A New Algorithm for the On-Board Compression of Hyperspectral Images

open access: yesRemote Sensing, 2018
Hyperspectral sensors are able to provide information that is useful for many different applications. However, the huge amounts of data collected by these sensors are not exempt of drawbacks, especially in remote sensing environments where the ...
Raúl Guerra   +5 more
doaj   +1 more source

Cryptography from Information Loss [PDF]

open access: yes, 2020
© Marshall Ball, Elette Boyle, Akshay Degwekar, Apoorvaa Deshpande, Alon Rosen, Vinod. Reductions between problems, the mainstay of theoretical computer science, efficiently map an instance of one problem to an instance of another in such a way that ...
Ball, Marshall   +6 more
core   +3 more sources

Hiding Data Using Efficient Combination of RSA Cryptography, and Compression Steganography Techniques

open access: yesIEEE Access, 2021
Data compression is an important part of information security because compressed data is more secure and easy to handle. Effective data compression technology creates efficient, secure, and easy-to-connect data.
Osama Fouad Abdel Wahab   +3 more
doaj   +1 more source

Universality of logarithmic loss in lossy compression [PDF]

open access: yes2015 IEEE International Symposium on Information Theory (ISIT), 2015
We establish two strong senses of universality of logarithmic loss as a distortion criterion in lossy compression: For any fixed length lossy compression problem under an arbitrary distortion criterion, we show that there is an equivalent lossy compression problem under logarithmic loss.
Albert No, Tsachy Weissman
openaire   +2 more sources

Lossy Compression with Near-uniform Encoder Outputs

open access: yes, 2016
It is well known that lossless compression of a discrete memoryless source with near-uniform encoder output is possible at a rate above its entropy if and only if the encoder is randomized.
Bloch, Matthieu   +2 more
core   +1 more source

JPEG2000 Image Compression on Solar EUV Images [PDF]

open access: yes, 1996
For future solar missions as well as ground-based telescopes, efficient ways to return and process data have become increasingly important. Solar Orbiter, e.g., which is the next ESA/NASA mission to explore the Sun and the heliosphere, is a deep-space ...
Fischer, C. E.   +2 more
core   +3 more sources

Lossy compression of general random variables

open access: yesInformation and Inference: A Journal of the IMA, 2023
AbstractThis paper is concerned with the lossy compression of general random variables, specifically with rate-distortion theory and quantization of random variables taking values in general measurable spaces such as, e.g. manifolds and fractal sets. Manifold structures are prevalent in data science, e.g.
Riegler, Erwin   +2 more
openaire   +4 more sources

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