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Related papers: CRASH2: colored packets and other updates

200 papers

Recent advances in snapshot multispectral (MS) imaging have enabled compact, low-cost spectral sensors for consumer and mobile devices. By capturing richer spectral information than conventional RGB sensors, these systems can enhance key…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Luca Cogo , Marco Buzzelli , Simone Bianco , Javier Vazquez-Corral , Raimondo Schettini

A numerical scheme that incorporates a thermal leakage injection model into a combined gas dynamics and cosmic ray (CR, hereafter) diffusion-convection code has been developed. The particle injection is followed numerically by filtering the…

Astrophysics · Physics 2009-11-07 Hyesung Kang , T. W. Jones , U. D. J. Gieseler

To detect changes in repeated astronomical images of the same field of view (FOV), a common practice is to stroboscopically switch between the images. Using this method, objects that are changing in location or intensity between images are…

Astrophysics · Physics 2009-11-13 Keith S Cover , Frank J Lagerwaard , Suresh Senan

A novel inter-frame coding approach to the problem of varying channel-state conditions in broadcast wireless communication is developed in this paper; this problem causes the appropriate code-rate to vary across different transmitted frames…

Information Theory · Computer Science 2015-11-11 Hady Zeineddine , Mohammad M. Mansour

We present a new numerical method for calculating the transfer of ionizing radiation, called C^2-Ray=Conservative, Causal Ray-tracing method. The method is explicitly photon-conserving, so the depletion of ionizing photons by bound-free…

Astrophysics · Physics 2009-11-11 Garrelt Mellema , Ilian T. Iliev , Marcelo A. Alvarez , Paul R. Shapiro

We develop a coordinated hybrid automatic repeat request (HARQ) approach. With the proposed scheme, if a user message is correctly decoded in the first HARQ rounds, its spectrum is allocated to other users, to improve the network outage…

Information Theory · Computer Science 2014-12-23 Behrooz Makki , Tommy Svensson , Thomas Eriksson , Mohamed-Slim Alouini

Intensity interferometry (II) exploits the second-order correlation to acquire the spatial frequency information of an object, which has been used to observe distant stars since 1950s. However, due to unreliability of employed imaging…

Image and Video Processing · Electrical Eng. & Systems 2017-12-08 Wentao Wang , Qi Han , Hui Chen , Yuan Yuan , Zhuo Xu

Since the mass of the electron is very small relative to atomic masses, Thomson scattering of low-energy photons ($h\nu \ll m_ec^2$) produces thermal Doppler frequency shifts that are much larger than atomic Doppler widths. A method is…

Astrophysics · Physics 2011-05-23 G. B. Rybicki , D. G. Hummer

At measurements of gamma-radiation spectra from ultra-relativistic electrons in periodic structures, pileup of events in the calorimeter may cause significant deviation of the detector signal from the classically evaluated spectrum. That…

Accelerator Physics · Physics 2015-06-17 M. V. Bondarenco

In this paper, we propose two novel physical layer aware adaptive network coding and coded modulation schemes for time variant channels. The proposed schemes have been applied to different satellite communications scenarios with different…

Information Theory · Computer Science 2017-04-18 Ala Eddine Gharsellaoui , Samah A. M. Ghanem , Daniele Tarchi , Alessandro Vanelli-Coralli

We present COSMOCR, a numerical code for the investigation of cosmic ray related studies in computational cosmology. The code follows the diffusive shock acceleration, the mechanical and radiative energy losses and the spatial transport of…

Astrophysics · Physics 2009-11-06 Francesco Miniati

Capturing more information, e.g. geometry and material, using optical cameras can greatly help the perception and understanding of complex scenes. This paper proposes a novel method to capture the spectral and light field information…

Image and Video Processing · Electrical Eng. & Systems 2018-02-27 Qian Huang , Yunqian Li , Linsen Chen , Xiaoming Zhong , Jinli Suo , Zhan Ma , Tao Yue , Xun Cao

In this paper, a transmission protocol is studied for a two relay wireless network in which simple repetition coding is applied at the relays. Information-theoretic achievable rates for this transmission scheme are given, and a space-time…

Information Theory · Computer Science 2016-11-17 Yijia Fan , Chao Wang , John Thompson , H. Vincent Poor

We use the combination of configuration interaction and many-body perturbation theory method (CI+MBPT) to perform ab initio calculations the low-energy spectra of Cr II with high accuracy. It is found that second-order MBPT diagrams should…

Atomic Physics · Physics 2011-12-02 J. C. Berengut

We propose a novel lossless and lossy compression scheme for color filter array~(CFA) sampled images based on the wavelet transform of them. Our analysis suggests that the wavelet coefficients of HL and LH subbands are highly correlated.…

Computer Vision and Pattern Recognition · Computer Science 2017-09-27 Y. Lee , K. Hirakawa , T. Nguyen

A transfer-matrix algorithm is presented herein as a beginning to study the transmission characteristics of coherent light through three-dimensional periodic microstructures, in which the structures are treated as two-dimensional-layer…

Statistical Mechanics · Physics 2015-05-27 I. L. Ho , Y. C. Chang , W. Y. Li , M. T. Lee , C. Y. Yin

Coded caching can be applied in wireless multi-antenna communications by multicast beamforming coded data chunks to carefully selected user groups and using the existing file fragments in user caches to decode the desired files at each…

Information Theory · Computer Science 2019-05-14 MohammadJavad Salehi , Antti Tölli , Seyed Pooya Shariatpanahi , Jarkko Kaleva

Automatically detecting or segmenting cracks in images can help in reducing the cost of maintenance or operations. Detecting, measuring and quantifying cracks for distress analysis in challenging background scenarios is a difficult task as…

Computer Vision and Pattern Recognition · Computer Science 2024-01-01 Ram Krishna Pandey , Akshit Achara

Precision measurement of the cosmological recombination spectrum can provide an entire new window to look at the early universe. We aim to quantify the information hidden in the cosmological recombination spectrum and for this purpose we…

Cosmology and Nongalactic Astrophysics · Physics 2020-02-05 Debajyoti Sarkar , Rishi Khatri

Image style transfer aims to manipulate the appearance of a source image, or "content" image, to share similar texture and colors of a target "style" image. Ideally, the style transfer manipulation should also preserve the semantic content…

Computer Vision and Pattern Recognition · Computer Science 2021-09-07 Mahmoud Afifi , Abdullah Abuolaim , Mostafa Hussien , Marcus A. Brubaker , Michael S. Brown