Results 1 to 10 of about 15,429 (227)

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

Information preserved guided scan pixel difference coding for medical images

open access: yes, 1995
This paper analyzes the information content of medical images, with 3-D MRI images as an example, in terms of information entropy. The results of the analysis justify the use of Pixel Difference Coding for preserving all information contained in the ...
Takaya, Kunio, Tannous, C., Yuan, Li
core   +1 more source

Non-Adaptive Distributed Compression in Networks [PDF]

open access: yes, 2013
In this paper, we discuss non-adaptive distributed compression of inter-node correlated real-valued messages. To do so, we discuss the performance of conventional packet forwarding via routing, in terms of the total network load versus the resulting ...
Labeau, Fabrice, Nabaee, Mahdy
core   +1 more source

Hyperspectral IASI L1C Data Compression

open access: yesSensors, 2017
The Infrared Atmospheric Sounding Interferometer (IASI), implemented on the MetOp satellite series, represents a significant step forward in atmospheric forecast and weather understanding.
Joaquín García-Sobrino   +2 more
doaj   +1 more source

Lossless and near-lossless source coding for multiple access networks [PDF]

open access: yes, 2003
A multiple access source code (MASC) is a source code designed for the following network configuration: a pair of correlated information sequences {X-i}(i=1)(infinity), and {Y-i}(i=1)(infinity) is drawn independent and identically distributed (i.i.d ...
Effros, Michelle, Zhao, Qian
core   +1 more source

Data Compression in the Petascale Astronomy Era: a GERLUMPH case study

open access: yes, 2015
As the volume of data grows, astronomers are increasingly faced with choices on what data to keep -- and what to throw away. Recent work evaluating the JPEG2000 (ISO/IEC 15444) standards as a future data format standard in astronomy has shown promising ...
Fluke, Christopher J.   +2 more
core   +1 more source

Low-Complexity Approaches to Slepian–Wolf Near-Lossless Distributed Data Compression [PDF]

open access: yes, 2006
This paper discusses the Slepian–Wolf problem of distributed near-lossless compression of correlated sources. We introduce practical new tools for communicating at all rates in the achievable region.
Anna H. Lee   +6 more
core   +3 more sources

VLSI Implementation of a Cost-Efficient Near-Lossless CFA Image Compressor for Wireless Capsule Endoscopy

open access: yesIEEE Access, 2016
In this paper, a novel near-lossless color filter array (CFA) image compression algorithm based on JPEG-LS is proposed for VLSI implementation. It consists of a pixel restoration, a prediction, a run mode, and entropy coding modules.
Shih-Lun Chen   +3 more
doaj   +1 more source

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

EEG Compression of Scalp Recordings based on Dipole Fitting

open access: yes, 2014
A novel technique for Electroencephalogram (EEG) compression is proposed in this article. This technique models the intrinsic dependency inherent between the different EEG channels.
Daou, Hoda, Labeau, Fabrice
core   +1 more source

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