نتایج جستجو برای: masks

تعداد نتایج: 9474  

2017
Emad M. Grais Gerard Roma Andrew J.R. Simpson Mark D. Plumbley

Deep neural networks (DNNs) are often used to tackle the single channel source separation (SCSS) problem by predicting time-frequency masks. The predicted masks are then used to separate the sources from the mixed signal. Different types of masks produce separated sources with different levels of distortion and interference. Some types of masks produce separated sources with low distortion, whi...

2010
Usman Ahmed Guy Lemieux

As process technology scales, the design effort and Non-Recurring Engineering (NRE) costs associated with the development of Integrated Circuits (ICs) is becoming extremely high. One of the main reasons is the high cost of preparing and processing IC fabrication masks. The design effort and cost can be reduced by employing Structured Application-Specific ICs (Structured ASICs). Structured ASICs...

2002
Marc J. Kuchner David N. Spergel

An ideal coronagraph with a band-limited image mask can efficiently image off-axis sources while removing identically all of the light from an on-axis source. However, strict mask construction tolerances limit the utility of this technique for directly imaging extrasolar terrestrial planets. We present a variation on the basic band-limited mask design—a family of “notch filter” masks—that mitig...

2005
XINLONG ZHOU David R. Larson

We study the convergence of multivariate subdivision schemes with nonnegative finite masks. Consequently, the convergence problem for the multivariate subdivision schemes with nonnegative finite masks supported on centered zonotopes is solved. Roughly speaking, the subdivision schemes defined by these masks are always convergent, which gives an answer to a question raised by Cavaretta, Dahmen a...

2014
V. Popescu N.C.G. Ran F. Barkhof D.T. Chard C.A. Wheeler-Kingshott H. Vrenken

BACKGROUND In multiple sclerosis (MS), brain atrophy quantification is affected by white matter lesions. LEAP and FSL-lesion_filling, replace lesion voxels with white matter intensities; however, they require precise lesion identification on 3DT1-images. AIM To determine whether 2DT2 lesion masks co-registered to 3DT1 images, yield grey and white matter volumes comparable to precise lesion ma...

Journal: :American journal of public health 2007
Martin Meyer Weiss Peter D Weiss Danielle E Weiss Joseph B Weiss

In the event of an influenza pandemic, where effective vaccine and antiviral drugs may be lacking, disrupting environmental transmission of the influenza virus will be the only viable strategy to protect the public. We discuss 2 such modalities, respirators (face masks) and ultraviolet (UV) light. Largely overlooked, the potential utility of each is underappreciated. The effectiveness of dispos...

2004
Christophe Cerisara Dominique Fohr Odile Mella Irina Illina

We propose in this paper an original approach to build masks in the framework of missing data recognition. The proposed soft masks are estimated from the models themselves, and not from the test signal as it is usually the case. They represent the intrinsic robustness of model’s log-spectral coefficients. The method is validated with cepstral models, on two synthetic and two real-life noises, a...

Journal: :IEEE Trans. Automat. Contr. 2014
Ratnesh Kumar Shigemasa Takai

An article on codiagnosability verification of discrete event systems was reported in [1], claiming an improvement in complexity over [2]. This note clarifies an oversight in the complexity analysis of [1]. Further the results of [1] were obtained in a more restricted setting of “projection masks”, in contrast to the more general “nonprojection masks” allowed in [2], which was overlooked. Final...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2008
Dirk L J Vossen Joan J Penninkhof Alfons van Blaaderen

A method is presented to tune the holes in colloidal masks used for nanolithography. Using a simple wet-chemical method, a thin layer of silica is grown on masks of silica particles. The size of the holes is controlled by the amount of tetraethoxysilane (TEOS) added. More accurate tuning of the hole size is possible in the presence of a calibrated seed dispersion of silica colloids. We demonstr...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید