Results 11 to 20 of about 168 (110)

An Efficient Lossless Compression Method for Periodic Signals Based on Adaptive Dictionary Predictive Coding

open access: yesApplied Sciences, 2020
This paper reports on an efficient lossless compression method for periodic signals based on adaptive dictionary predictive coding. Some previous methods for data compression, such as difference pulse coding (DPCM), discrete cosine transform (DCT ...
Shaofei Dai   +5 more
doaj   +1 more source

Ordinamento di emergenza sanitaria e il suo impatto sul sistema d’istruzione pubblica

open access: yesSocietà e diritti, 2021
Riassunto Nel quado di una esistente ordinamento di emergenza, le norme poste dai DPCM, sulla base di decreti-legge del Governo, sono da ritenersi non espressione del potere regolamentare ma espressione del potere d’ordinanza; potere ancorato al ...
Mario Falanga
doaj   +1 more source

Characteristics and Therapeutic Potential of Dental Pulp Stem Cells on Neurodegenerative Diseases

open access: yesFrontiers in Neuroscience, 2020
To evaluate the therapeutic potential of stem cells for neurodegenerative diseases, emphasis should be placed on clarifying the characteristics of the various types of stem cells.
Tomoyuki Ueda   +4 more
doaj   +1 more source

On the sensitivity of the recursive filter with arbitrary order predictor in DPCM system [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2014
Sensitivity analysis of the recursive filter in a DPCM system, with arbitrary order predictor, is presented in this paper. Relations for sensitivity, related to predictor coefficients, are derived both in cases of stable and unstable systems. In
Danković Nikola   +4 more
doaj   +1 more source

WEB NEWS DOCUMENTS CLUSTERING IN INDONESIAN LANGUAGE USING SINGULAR VALUE DECOMPOSITION-PRINCIPAL COMPONENT ANALYSIS (SVDPCA) AND ANT ALGORITHMS

open access: yesJurnal Ilmu Komputer dan Informasi, 2016
Ant-based document clustering is a cluster method of measuring text documents similarity based on the shortest path between nodes (trial phase) and determines the optimal clusters of sequence document similarity (dividing phase).
Arif Fadllullah   +4 more
doaj   +1 more source

Vulnerability and Preservation of the HistoricalArtistic Heritage. The Decoration in the Apse of the ex-Church of San Nicolò, Ferrara

open access: yesArcHistoR Architettura Storia Restauro: Architecture History Restoration, 2022
Recently, many approaches have been developed to assess the seismic vulnerability of artistic assets of the historical heritage. The DPCM 9/02/2011 responds to this need by defining a new limit state (Limit State of Damage for Artistic Heritage, SLA ...
Francesca Pasqual
doaj   +1 more source

A New Frame Memory Compression Algorithm with DPCM and VLC in a 4×4 Block

open access: yesEURASIP Journal on Advances in Signal Processing, 2009
Frame memory compression (FMC) is a technique to reduce memory bandwidth by compressing the video data to be stored in the frame memory. This paper proposes a new FMC algorithm integrated into an H.264 encoder that compresses a 4×4 block by ...
Yongje Lee, Yongseok Jin, Hyuk-Jae Lee
doaj   +1 more source

Sudden Shift to Distance Learning: Analysis of the Didactic Choices Made by Italian Secondary School Teachers in the First COVID-19 Lockdown

open access: yesResearch on Education and Media, 2020
Following China, the next severely affected country due to the COVID-19 epidemic was Italy. In consideration of the increasing number of infections, the government via the Ministerial Decree (DPCM) of March 2020 established various restrictive measures ...
Garavaglia Andrea, Petti Livia
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

DCT/DPCM Hybrid Coding for Interlaced Image Compression

open access: yesTikrit Journal of Engineering Sciences, 2009
By the nature of images, picture elements in local regions are highly correlated with one another. In such cases, image compression techniques are introduced to reduce the amount of data is needed to represent the same information, either exactly or ...
Saied O. Abdul-Amir   +1 more
doaj   +1 more source

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