نتایج جستجو برای: patch average size

تعداد نتایج: 926919  

2015
Xinhua Zhang Garrett T. Kenyon

Sparse coding is a widely-used technique for learning an overcomplete basis set from unlabeled image data. We hypothesize that as the size of the image patch spanned by each basis vector increases, the resulting dictionary should encompass a broader range of spatial scales, including more features that better discriminate between object classes. Previous efforts to measure the effects of patch ...

Journal: :Proceedings of the Royal Society of London. Series B: Biological Sciences 2002

2011
Xingyan Liu Hong Liu Jianqiang Liu Zhiwei He Congcong Ding Guoliang Huang Weihua Zhou Leshan Zhou

BACKGROUND The purpose of this study was to develop a transdermal ligustrazine patch containing a stable formulation and with good entrapment efficiency, release rate, and transdermal absorption. METHODS Ligustrazine ethosomes were prepared by ethanol injection-sonication, with entrapment efficiency as an indicator. Using acrylic resin as the primary constituent, the ligustrazine ethosome pat...

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