Results 71 to 80 of about 31,892 (221)

Sample-Based Gradient Edge and Angular Prediction for VVC Lossless Intra-Coding

Applied Sciences
Lossless coding is a compression method in the Versatile Video Coding (VVC) standard, which can compress video without distortion. Lossless coding has great application prospects in fields with high requirements for video quality.
Guojie Chen, Min Lin
doaj   +1 more source

Lossless medical image compression through lightweight binary arithmetic coding

, 2017
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, Blanes, Ian, Victor Sanchez, Aulí Llinàs, Francesc, Marcellin, Michael W., Serra Sagrsità, Joan, Ian Blanes, Sanchez, Victor, Michael W. Marcellin, Francesc Aulí Llinàs, Joan Bartrina Rapesta, Joan Serra Sagrsità   +11 more
core   +1 more source

Transient Charging Dynamics in Stacked Ga2O3/ZnO Photovoltaic Units Governing Wavelength‐Selective Polarity Switching

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work reveals a “Photovoltaic‐Capacitance” coupling mechanism in stacked Ga2O3/ZnO devices, defining the ZnO/graphene interface as a novel Photovoltaic Dynamic‐Capacitor (PDC). The wavelength‐selective bipolar response enables a physical layer secure communication protocol based on ternary optical logic (“1,” “0,” “−1”).
Songqi Zhao, Man Zhao, Dayong Jiang, Yuhan Duan, Haoming Wei, Qingcheng Liang, Rui Deng   +6 more
wiley   +1 more source

LICA-CS: Efficient Lossless Image Compression Algorithm via Column Subtraction Model [PDF]

Driven by the unprecedented amount of data generated in the last few decades, data storage and communication are becoming more challenging. Although many approaches in data compression have been developed to alleviate these challenges, more efforts are ...
Otair, M., Alzubi, M., Al Qerom, M., Meziane, F., AbdulRahman, S.   +4 more
core   +1 more source

Bio‐inspired vision: From principle, material architectures to system‐level integration

FlexMat, EarlyView.
This review introduces the development and mechanism of electronic and ionic bio‐inspired vision devices respectively. Then, it explores the impact of structure on bio‐inspired visual performance from the scale of intrinsic materials and device. Finally, it concludes that only by combining advanced software and technology can more complex vision ...
Zewan Lin, Miaoyi Xu, Xianda Ma, Weifeng Yang, Yuanlong Shao   +4 more
wiley   +1 more source

Exploring the Value Realization and Management of Healthcare Data Elements in the Context of New Quality Productive Forces

Health Care Science, EarlyView.
With the rapid advancement of information technology, data has become a key driver of social progress, particularly in the medical field. The accumulation and innovative application of medical data have not only reshaped the structure of medical production factors but also provided a strong impetus for the development of new productivity.
Zhixuan Yu, Jiaxuan Wei, Jianlin Wang, Jie Lu, Pengfei Cao   +4 more
wiley   +1 more source

Revealing the Resonant Physics of Open Photonic Time Crystals

Laser &Photonics Reviews, EarlyView.
ABSTRACT Photonic time crystals (PTCs) are media whose permittivity is modulated periodically in time, enabling momentum bandgaps and parametric amplification of light. Their realization at the nanoscale can revolutionize the study of light‐matter interactions.
Adrià Canós Valero, Sergei Gladyshev, David Globosits, Stefan Rotter, Egor A. Muljarov, Thomas Weiss   +5 more
wiley   +1 more source

Lossless and Lossy Hyperspectral Compression IP Core for Space Missions

This work presents a new compression IP core for lossless and near-lossless compression of multi- and hyperspectral data, compliant with the CCSDS-123.0-B-2 compression standard. This IP core supports most of the standard features, including all entropy
Bartrina-Rapesta, Joan, Sarmiento Rodríguez, Roberto, Santos Falcón, Lucana, Barrios Alfaro,Yubal, Berrojo, Luis, Chatziantoniou, Panagiotis, Sánchez Clemente, Antonio José, Torres Fau, Samuel   +7 more
core   +1 more source

Theory of Supercritical Coupling and Generalized Bound States in the Continuum

Laser &Photonics Reviews, EarlyView.
We develop a general theory of supercritical coupling and generalized bound states in the continuum (gBICs), revealing how interference between radiative and absorptive channels enables quality factors beyond conventional material‐loss limits. The framework unifies non‐Hermitian mode coupling, causality‐driven reactive interactions, and interference ...
Sergio Balestrieri, Bruno Miranda, Silvia Romano, Gianluigi Zito   +3 more
wiley   +1 more source

Comparative analysis of the quality of fractal image compression with JPEG and JPEG2000 standards

Збірник наукових праць Державного університету інфраструктури та технологій: серія "Транспортні системи і технології"
This paper presents a comparative analysis of three image compression methods: JPEG, JPEG2000, and fractal compression (FIC). The theoretical foundations of each method are reviewed, including the discrete cosine transform (DCT) for JPEG, the discrete ...
Serhii Karnatov, Oleksandr Gertsiy
doaj