Results 21 to 30 of about 65,315 (261)

Deep Learning-Based Super-Resolution Reconstruction and Algorithm Acceleration of Mars Hyperspectral CRISM Data

open access: yesRemote Sensing, 2022
In Mars exploration, hyper-spectrometry plays an important role due to its high spectral resolution. However, due to the technical difficulty and the data size, the spatial resolution or the coverage of hyperspectral data is often limited.
Mingbo Sun, Shengbo Chen
doaj   +1 more source

Enhanced Attention Mechanism-Based Image Watermarking With Simulated JPEG Compression

open access: yesIEEE Access, 2023
Deep learning-based image watermarking algorithms have been widely studied as an important technology for copyright protection. These methods utilize an end-to-end architecture with an encoder, a noise layer and a decoder to make the watermark robust to ...
Jia-Yi Zhong   +3 more
doaj   +1 more source

A trajectory data compression algorithm based on spatio-temporal characteristics [PDF]

open access: yesPeerJ Computer Science, 2022
Background With the growth of trajectory data, the large amount of data causes a lot of problems with storage, analysis, mining, etc. Most of the traditional trajectory data compression methods are focused on preserving spatial characteristic information
Yanling Zhong   +5 more
doaj   +2 more sources

Spatial soliton tunneling, compression and splitting

open access: yesOptics Express, 2008
We numerically investigate the tunneling of spatial solitons through a focusing Kerr nonlinear optical lattice with longitudinal potential barrier, and find that the position of input beams apparently affects the tunneling behaviors of spatial solitons, which exhibit compression or splitting when passing through the barrier, and that the transverse ...
Rongcao, Yang, Xiaoling, Wu
openaire   +2 more sources

Compressive Imaging with a Stochastic Spatial Light Modulator [PDF]

open access: yesConference on Lasers and Electro-Optics, 2019
4 pages, 8 ...
Schaake, J. C., Pooser, R. C., Jesse, S.
openaire   +2 more sources

Compression Algorithm of Road Traffic Spatial Data Based on LZW Encoding

open access: yesJournal of Advanced Transportation, 2017
Wide-ranging applications of road traffic detection technology in road traffic state data acquisition have introduced new challenges for transportation and storage of road traffic big data.
Dong-wei Xu   +4 more
doaj   +1 more source

Implementation of 3D spatial indexing and compression in a large-scale molecular dynamics simulation database for rapid atomic contact detection

open access: yesBMC Bioinformatics, 2011
Background Molecular dynamics (MD) simulations offer the ability to observe the dynamics and interactions of both whole macromolecules and individual atoms as a function of time.
Toofanny Rudesh D   +3 more
doaj   +1 more source

Precoder and Spatial Compression Filter Designs for Uplink Cloud Radio Access Networks

open access: yesIEEE Access, 2021
This work considers an uplink cloud radio access network (C-RAN), and proposes a MIMO spatial compression filtering and which compressed symbols to upload at RRH side as well as MIMO precoding at UE (user equipment) side.
Guan-Yu Chen   +2 more
doaj   +1 more source

Adaptation of the territorial organisation of agriculture in a peripheral region to the operations of agricultural holdings

open access: yesBaltic Region
Agricultural holdings are often cited as the main beneficiaries, on the one hand, of organisational and structural changes in Russian agriculture during the post-Soviet period, and on the other, of the transformation of state policy in response to ...
Kira A. Morachevskaya   +3 more
doaj   +1 more source

Spatial Pulse Compression. [PDF]

open access: yes, 1980
Abstract : The purpose of this experiment is to verify that the characteristics of a broadband antenna will cause it to function as a dispersive filter. A log-periodic type antenna with a bandpass from 50 MHz to 1000 MHz is used. To determine the proper waveform, a transmitting antenna was driven with a 2 nanosecond impulse and the resulting waveform ...
openaire   +1 more source

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