نتایج جستجو برای: correlated signal enhancement

تعداد نتایج: 771646  

2003
Qiang Fu

This paper introduces a novel speech enhancement system based on a wavelet denoising framework. In this system, the noisy speech is first preprocessed using a generalized spectral subtraction method to initially lower the noise level with negligible speech distortion. A perceptual wavelet transform is then used to decompose the resulting speech signal into critical bands. Threshold estimation i...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2008
Wei Xu Yanchun Wei Da Xing Qun Chen

An efficient and highly sensitive chemiluminescence (CL) technique is proposed in the current study for detection of low levels of human serum albumin (HSA). Chemiluminescence (CL) produced during interaction between fluoresceinyl cypridina luciferin analog (FCLA)-1O2 can be modified with the presence of HSA. The conventional CL technique uses a quenching effect of HSA for its quantitative meas...

2013
Sébastien Roujol Tamer A Basha Alex Y Tan Elad Anter Alfred E Buxton Mark E Josephson Reza Nezafat

Background Ventricular tachycardia (VT) ablation is generally guided by invasive mapping of the left ventricle (LV) using electro-anatomical voltage mapping (EAM) to identify the VT substrate [1]. Late gadolinium enhancement (LGE) MRI allows excellent visualization of the scar. Heterogeneous area in LGE images has been shown to correlate with the VT substrate in animal models of VT. Retrospecti...

Journal: :IEEE Transactions on Audio, Speech and Language Processing 2006

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