Results 31 to 40 of about 1,028,789 (292)

COMPRESSION OF HIGH DYNAMIC RANGE OF SAR IMAGES

Системный анализ и прикладная информатика, 2018
The paper presents results of our experiments on compression of the high dynamic range SAR images. The range is equal to 16-bit. Objectives of study were comparison of known approaches to compression of the high dynamic range images; selection of optimal
Yu. I. Golub
doaj   +1 more source

YSYNONYMIC POLYPREDICATIVE UTTERANCES (ON THE MATERIAL OF THE FRENCH FICTION OF THE 20th – BEGINNING OF THE 21st CENTURIES) [PDF]

Вісник університету ім. А. Нобеля. Серія Філологічні науки, 2019
In this article the most spread structurally-semantic types of polysynonymic polypredicative monoand polytransformational discourse innovations in the French fiction of XX-th – beginning of the XXI-st centuries are classified.
Anastasiia V. Lepetiukha
doaj   +1 more source

Compressive Sampling of Color Retinal Image Using Spread Spectrum Fourier Sampling and Total Variant

IEEE Access, 2022
In medical imaging, the application of retinal images demands a lot of retinal photos to analyze and requires efficient compression techniques for retinal image storage.
Ledya Novamizanti, I Nyoman Apraz Ramatryana, Rita Magdalena, I Putu Agus Eka Pratama, Tariq Rahim, Soo Young Shin   +5 more
doaj   +1 more source

Localized bases of eigensubspaces and operator compression [PDF]

Proceedings of the National Academy of Sciences, 2010
Given a complex local operator, such as the generator of a Markov chain on a large network, a differential operator, or a large sparse matrix that comes from the discretization of a differential operator, we would like to find its best finite dimensional approximation with a given dimension.
E, Weinan, Li, Tiejun, Lu, Jianfeng
openaire   +2 more sources

Underwater Wireless Vision System Using Progressive Image Compression and Region of Interest

Revista Iberoamericana de Automática e Informática Industrial RIAI, 2017
The increasing demand for underwater robotic intervention systems around the world in several application domains requires more versatile and inexpensive systems. By using a wireless communication system, supervised semi-autonomous robots have freedom of
Eduardo M Rubino, D. Centelles, Jorge Sales, José V. Martí, Raúl Marín, Alberto J. Alvares, Pedro J. Sanz   +6 more
doaj   +1 more source

Sinc-Fractional Operator on Shannon Wavelet Space

Frontiers in Physics, 2018
In this paper the sinc-fractional derivative is extended to the Hilbert space based on Shannon wavelets. Some new fractional operators based on wavelets are defined.
Carlo Cattani
doaj   +1 more source

Strongly Peaking Representations and Compressions of Operator Systems [PDF]

International Mathematics Research Notices, 2020
Abstract We use Arveson’s notion of strongly peaking representation to generalize uniqueness theorems for free spectrahedra and matrix convex sets that admit minimal presentations. A fully compressed separable operator system necessarily generates the $C^*$-envelope and is such that the identity is the direct sum of strongly peaking ...
Davidson, Kenneth R., Passer, Benjamin
openaire   +2 more sources

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Designing dispersion- and mode-area-decreasing holey fibers for soliton compression [PDF]

, 2007
We investigate numerically the adiabatic compression of solitons at 1.55 µm in holey fibers which exhibit simultaneously decreasing dispersion and effective mode area.
Tse, M.L.V., Horak, P., Richardson, D.J., Poletti, F.   +3 more
core   +2 more sources

Hyperbolic reduced model for Vlasov-Poisson equation with Fokker-Planck collision* [PDF]

ESAIM: Proceedings and Surveys
This paper proposes a reduced model to simulate the one-dimensional Vlasov-Poisson equation with the non-linear Fokker-Planck operator. The model provides the space-time dynamics of a few macroscopic quantities constructed following the Reduced Order ...
Franck Emmanuel, Labanni Ibtissem, Nasseri Youssouf, Navoret Laurent, Parasiliti Rantone Giuseppe, Steimer Guillaume   +5 more
doaj   +1 more source