Results 51 to 60 of about 697,042 (219)

Peak Detection as Multiple Testing [PDF]

open access: yes, 2010
This paper considers the problem of detecting equal-shaped non-overlapping unimodal peaks in the presence of Gaussian ergodic stationary noise, where the number, location and heights of the peaks are unknown.
Adler, Robert J.   +2 more
core  

Infrared–Visible Image Fusion via Cross-Modal Guided Dual-Branch Networks

open access: yesApplied Sciences
In the field of low-altitude aerial drone data fusion, the fusion of infrared and visible light images remains challenging due to issues such as large modal differences, insufficient cross-modal alignment, and limited global context modeling. Traditional
Tingyu Zhu, Jinyong Chen, Gang Wang
doaj   +1 more source

Novel Implementation of Audio Encryption Using Pseudorandom Byte Generator

open access: yesApplied Sciences, 2021
In this paper, we present an algorithm for encrypting audio files based on the Ikeda map, a mathematical function of chaos theory. Detailed experimental, security and theoretical analysis is provided on the proposed algorithm using histogram analysis ...
Borislav Stoyanov, Tsvetelina Ivanova
doaj   +1 more source

Fuzzy Logic and Singular Value Decomposition based Through Wall Image Enhancement [PDF]

open access: yes, 2012
Singular value decomposition based through wall image enhancement is proposed which is capable of discriminating target, noise and clutter signals. The overlapping boundaries of clutter, noise and target signals are separated using fuzzy logic.
Ghafoor, A., Riaz, M. M.
core   +1 more source

High-frequency art image resolution reconstruction based on HFRA-SRGAN algorithm: A study on image quality metrics and super-resolution GANs

open access: yesSystems and Soft Computing
This study focuses on the problem of insufficient clarity and pixels in current art images, and constructs an art image resolution reconstruction model based on high-frequency reconstruction and amplification with super-resolution generative adversarial ...
Zhenglan Wu
doaj   +1 more source

Extracting More Data from LiDAR in Forested Areas by Analyzing Waveform Shape [PDF]

open access: yes, 2012
Light Detection And Ranging (LiDAR) in forested areas is used for constructing Digital Terrain Models (DTMs), estimating biomass carbon and timber volume and estimating foliage distribution as an indicator of tree growth and health. All of these purposes
Adams, Thomas   +2 more
core   +3 more sources

Cosmology constraints from shear peak statistics in Dark Energy Survey Science Verification data [PDF]

open access: yes, 2016
Shear peak statistics has gained a lot of attention recently as a practical alternative to the two-point statistics for constraining cosmological parameters. We perform a shear peak statistics analysis of the Dark Energy Survey (DES) Science Verification
Marian, L   +2 more
core   +1 more source

Efficient method for DCT-domain image arbitrary downsampling

open access: yesTongxin xuebao, 2007
A novel approach to resize Images with m/n resizing ratio in the DCT domain,was proposed which expoits the relationship of DCT coefficients between m 2input blocks and n 2output blocks.Experimental results confirm that the scheme performs about 0.5dB ...
DU Yao-gang1, CAI An-ni2
doaj   +2 more sources

Steganography in RGB Images Using Adjacent Mean

open access: yesIEEE Access, 2021
Steganography is the practice of hiding information or data in a seemingly innocuous cover medium, such as message, file, image, audio, and video. In the past decades, many approaches of steganography in images were proposed for various applications.
Yun-Hsin Chuang   +3 more
doaj   +1 more source

Performance of peak signal‐to‐noise ratio quality assessment in video streaming with packet losses

open access: yesElectronics Letters, 2016
The effect of packet losses over error‐prone networks on visual quality of distributed video contents, estimated through subjective opinion and PSNR as an objective measure is analysed. It is shown that, within a fixed content, the variation of PSNR is a reliable indicator of the variation of packet loss rates.
B.P. Bondzulic   +3 more
openaire   +1 more source

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