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Ultrasonogram plays an important role for medical diagnosis because its convenience, easy to use, low cost in compared with other medical modalities. Ultrasound image analysis is mainly used in real-time but sometimes offline data is used for future diagnosis. In this paper, we analyze the artery pulsation caused by blood flow in neonatal brain using discrete wavelet transform. We quantitatively analyze...
This paper presents a new Discrete Wavelet Transform (DWT) based technique for resolving multipath components in Channel Impulse Response (CIR). CIR is calculated from channel transfer function (CTF) using Inverse Fast Fourier Transform (IFFT). CTF for scattering from building faces modeled semi-deterministically is found using Method of Moments (MoM). As the CTF is calculated in limited frequency...
It is very important to perceptually shape the watermark signal before embedding it into a host image according to the characteristics of the HVS (human vision system) since watermark invisibility is a necessary requirement for a successful watermarking application. Two popular HVS models have been proposed to deal with this problem: DCT-based Watson model and DWT-based PWM (pixel-wise masking) model,...
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