Colored-Gaussian Multiple Descriptions: Spectral and Time-Domain Forms [PDF]
It is well known that Shannon's rate-distortion function (RDF) in the colored quadratic Gaussian (QG) case can be parametrized via a single Lagrangian variable (the "water level" in the reverse water filling solution).
Kochman, Yuval +2 more
core +2 more sources
Hybrid Color Image Compression based DPCM and Slant Transform
Nowadays, still images are used everywhere in the digital world. Images take lot of computer space, in many practical situations, all original images cannot be stored, and a compression must be used.
Ali Hussien mary
doaj
Cipher-image compression by using compressive sensing and interweaving permutation
Recently, compressing cipher images by using compressive sensing (CS) has attracted a lot of attention. However, the previous CS-based works cannot provide satisfactory compression performance.
Bo Zhang +4 more
doaj +1 more source
Compression-Based Complexity Analysis of Thalamic EEG Using Multiscale Preprocessing Techniques
Quantifying the complexity of biomedical signals offers critical insight into underlying physiological and pathological dynamics. This study systematically evaluates compression-based complexity measures—Effort-to-Compress (ETC) and Lempel-Ziv ...
Poornima Mohan +4 more
doaj +1 more source
Spatially Directional Predictive Coding for Block-based Compressive Sensing of Natural Images
A novel coding strategy for block-based compressive sens-ing named spatially directional predictive coding (SDPC) is proposed, which efficiently utilizes the intrinsic spatial cor-relation of natural images.
Jiang, Feng, Zhang, Jian, Zhao, Debin
core +1 more source
Virtually Lossless Compression of Astrophysical Images
We describe an image compression strategy potentially capable of preserving the scientific quality of astrophysical data, simultaneously allowing a consistent bandwidth reduction to be achieved.
Alparone Luciano +3 more
doaj +1 more source
The Effect of Channel Errors in the Differential Pulse-Code-Modulation Transmission of Sampled Imagery [PDF]
This Paper Presents an Analysis, Simulation, and Discussion of the Effects of Communication Errors on Four-Bit Differential Pulse-Code Modulation (DPCM) Sampled Imagery.
Arguello, Roger J. +2 more
core +2 more sources
Recursively indexed differential pulse code modulation [PDF]
The performance of a differential pulse code modulation (DPCM) system with a recursively indexed quantizer (RIQ) under various conditions, with first order Gauss-Markov and Laplace-Markov sources as inputs, is studied.
Na, Sangsin, Sayood, Khalid
core +1 more source
A study of data coding technology developments in the 1980-1985 time frame, volume 2 [PDF]
The source parameters of digitized analog data are discussed. Different data compression schemes are outlined and analysis of their implementation are presented.
Ingels, F. M., Shahsavari, M. M.
core +1 more source
PSNR Improvement Using Different Prediction Coding
Differential Pulse Code Modulation (DPCM) is one of the predictive coding techniques. The number of previous pixels employed in the estimate operation is referred to as the order of the predictor. Predictor using one pixel for estimation is called “first
Khamies Khalaf Hasan
doaj

