Results 31 to 40 of about 2,369,121 (286)

AMFNet: An Adversarial Network for Median Filtering Detection

open access: yesIEEE Access, 2018
Median filtering is one of the most common operations for image smoothing and retouching, and it is often used as a post-processing by forgers to alleviate the traces of image tampering.
Xiao Jin, Peiguang Jing, Yuting Su
doaj   +1 more source

A Single Image Deblurring Approach Based on a Fractional Order Dark Channel Prior

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2022
The dark channel prior has been successfully applied to solve the blind deblurring problem on different scene images. Since the dark channel of the blurry-noise image is similar to that of the corresponding clear image, the sparsity of the dark channel ...
Yu Xiaoyuan, Xie Wei, Yu Jinwei
doaj   +1 more source

Forbidden Channels and SIMP Dark Matter [PDF]

open access: yesEPJ Web of Conferences, 2018
In this review, we focus on dark matter production from thermal freeze-out with forbidden channels and SIMP processes. We show that forbidden channels can be dominant to produce dark matter depending on the dark photon and / or dark Higgs mass compared to SIMP.
Choi Soo-Min, Kang Yoo-Jin, Lee Hyun Min
openaire   +3 more sources

Dark Matter Direct Detection in $t$-channel mediator models [PDF]

open access: yes, 2023
We perform a comprehensive study of the Direct Detection phenomenology of singlet Dark Matter $t$-channel portal models. For that purpose, we present a complete one-loop matching onto a Heavy Dark-Matter Effective Field Theory, leading to a complete ...
Mescia, Federico   +7 more
core   +1 more source

Light Dark Matter from Forbidden Channels

open access: yesPhysical Review Letters, 2015
Dark matter (DM) may be a thermal relic that annihilates into heavier states in the early universe. This forbidden DM framework accommodates a wide range of DM masses from keV to weak scales. An exponential hierarchy between the DM mass and the weak scale follows from the exponential suppression of the thermally averaged cross section.
D’agnolo, Raffaele Tito   +1 more
openaire   +5 more sources

Self-resonant dark matter

open access: yesJournal of High Energy Physics, 2021
We present a novel mechanism for Sommerfeld enhancement for dark matter interactions without the need for light mediators. Considering a model for two-component dark matter with a triple coupling, we find that one of dark matter particles leads to an u ...
Seong-Sik Kim, Hyun Min Lee, Bin Zhu
doaj   +1 more source

Blind Image Deblurring Based on Local Edges Selection

open access: yesApplied Sciences, 2019
The edges of images are less sparse when images become blurred. Selecting effective image edges is a vital step in image deblurring, which can help us to build image deblurring models more accurately.
Yue Han, Jiangming Kan
doaj   +1 more source

Dark state with counter-rotating dissipative channels

open access: yesScientific Reports, 2017
Abstract Dark state as a consequence of interference between different quantum states has great importance in the fields of chip-scale atomic clock and quantum information. For the Λ-type three-level system, this dark state is generally regarded as being dissipation-free because it is a superposition of two lowest states without ...
Zheng-Yang Zhou   +4 more
openaire   +4 more sources

Models for self-resonant dark matter

open access: yesJournal of High Energy Physics, 2022
We consider a new mechanism for enhancing the self-scattering and annihilation cross sections for dark matter with multiple components but without a light mediator.
Seong-Sik Kim, Hyun Min Lee, Bin Zhu
doaj   +1 more source

Region Adaptive Single Image Dehazing

open access: yesEntropy, 2021
Image haze removal is essential in preprocessing for computer vision applications because outdoor images taken in adverse weather conditions such as fog or snow have poor visibility.
Changwon Kim
doaj   +1 more source

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