The cost function is crucial to the security of adaptive image steganography, However, some existing cost functions are heuristically designed and hard to be optimal in the undetectability against the ...

This paper aims at building a new instantaneous frequency (IF) estimator of the modes making up non-stationary multi-component signals, using reassignment operators used in Fourier-based ...

Iran's Khamenei Gives US Fresh Warning in First Statement Since Ceasefire Published Jun 26, 2025 at 6:12 AM EDT Updated Jun 26, 2025 at 8:27 AM EDT By Shane Croucher ...