Results 41 to 50 of about 697,010 (291)
Improved Watermarking Scheme Using Decimal Sequences [PDF]
, 2005 This paper presents watermarking algorithms using d-sequences so that the peak signal to noise ratio (PSNR) is maximized and the distortion introduced in the image due to the embedding is minimized. By exploiting the cross correlation property of decimal
Shaik, Ashfaq N
core +3 more sources
Novel Implementation of Audio Encryption Using Pseudorandom Byte Generator
Applied 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
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Comparative Analysis of Filters for Cancellation of Power-line-interference of ECG Signal [PDF]
International Journal Bioautomation, 2019 Filtering noises/artifacts from the electrocardiogram (ECG) can sustain the efficient clinical decision making. Comparative analysis of several filtering techniques is proposed: two adaptive noise cancellation techniques, Least Mean Square (LMS ...
Akash Kumar Bhoi +2 more
doaj +1 more source
Peak Detection as Multiple Testing [PDF]
, 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
Noisy weak-lensing convergence peak statistics near clusters of galaxies and beyond
, 2010 Taking into account noise from intrinsic ellipticities of source galaxies, in this paper, we study the peak statistics in weak-lensing convergence maps around clusters of galaxies and beyond.
Albrecht +22 more
core +1 more source
Molecular Oncology, EarlyView.Adaptaquin selectively kills glioma stem cells while sparing differentiated brain cells. Transcriptomic and proteomic analyses show Adaptaquin disrupts iron and cholesterol homeostasis, with iron chelation amplifying cytotoxicity via cholesterol depletion, mitochondrial dysfunction, and elevated reactive oxygen species.
Adrien M. Vaquié +16 more
wiley +1 more source
Infrared–Visible Image Fusion via Cross-Modal Guided Dual-Branch Networks
Applied SciencesIn 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
Fuzzy Logic and Singular Value Decomposition based Through Wall Image Enhancement [PDF]
, 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
Molecular Oncology, EarlyView.This study shows that copy number variations (CNVs) can be reliably detected in formalin‐fixed paraffin‐embedded (FFPE) solid cancer samples using ultra‐low‐pass whole‐genome sequencing, provided that key (pre)‐analytical parameters are optimized.
Hanne Goris +10 more
wiley +1 more source