Results 101 to 110 of about 20,045 (225)
NEAR-LOSSLESS LZW IMAGE COMPRESSION
: Classical image compression methods are based on measuring the error only at entire image level. In some areas there is an obvious need for getting an upper bound for the error at the pixel level.
Daniel Volovici +3 more
core
Lossless medical image compression through lightweight binary arithmetic coding
A contextual lightweight arithmetic coder is proposed for lossless compression of medical imagery. Context definition uses causal data from previous symbols coded, an inexpensive yet efficient approach.
Bartrina Rapesta, Joan +11 more
core +1 more source
Magnetically Reconfigurable Mode Strong Coupling Toward Tunable Nanophotonic Sensing Devices
A magnetically reconfigurable metasurface realizes tunable strong coupling between structural and magneto‐structurally induced q‐BIC resonances without changing device geometry. The resulting hybrid branches enable high‐sensitivity refractive‐index sensing with noncontact active control, large figure of merit, and multiple resonance observables ...
Runmin Liu +5 more
wiley +1 more source
Lossless image compression is vital for missions with limited data transmission bandwidth. Reducing file sizes enables faster transmission and increased scientific gains from transient events.
Kasper Skog +5 more
doaj +1 more source
Tunable Plasmon‐Enhanced Wide‐Angle Terahertz Perfect Absorption via Lorentz Media
A planar graphene‐Lorentz‐DBR structure realizes wide‐angle terahertz perfect absorption through a composite phase‐amplitude matching mechanism. The Lorentz dielectric provides dispersive phase compensation and controlled loss, whereas graphene supports dissipative coupling, enabling high absorption up to 80° incidence and multichannel spectral ...
Yuxuan Zhou
wiley +1 more source
Lossless compression of high-volume numerical data from simulations
Summary form only given. We propose a lossless algorithm of delta compression (a variant of predictive coding) that attempts to predict the next point from previous points using higher-order polynomial extrapolation. In contrast to traditional predictive
Fritzson, Peter, +2 more
core +1 more source
Near Lossless Data Compression Method Using Nonuniform Sampling [PDF]
Embodiments in accordance with the invention provide methods of near lossless data compression based on nonuniform sampling. Alternate embodiments in accordance with the invention improve the compression factor of lossy compression methods by using ...
Ferrari, Leonard Anthony +1 more
core
Computationally Efficient Light Field Video Compression Using 5-D Approximate DCT
Five-dimensional (5-D) light field videos (LFVs) capture spatial, angular, and temporal variations in light rays emanating from scenes. This leads to a significantly large amount of data compared to conventional three-dimensional videos, which capture ...
Braveenan Sritharan +4 more
doaj +1 more source
A Block Adaptive Near-Lossless Compression Algorithm for Medical Image Sequences and Diagnostic Quality Assessment. [PDF]
Sharma U, Sood M, Puthooran E.
europepmc +1 more source
Neural Rate-Adaptive LDPC Decoding for the Slepian-Wolf Problem
Distributed source coding (DSC) enables efficient compression of correlated sources by performing independent encoding and joint decoding. Slepian-Wolf coding plays a central role in DSC, as it allows near-lossless compression of correlated data at rates
Brent De Weerdt, Nikos Deligiannis
doaj +1 more source

