نتایج جستجو برای: features number

تعداد نتایج: 1621913  

Journal: :CoRR 2012
Peter Abeles

Speeded Up Robust Features (SURF) has emerged as one of the more popular feature descriptors and detectors in recent years. Performance and algorithmic details vary widely between implementations due to SURF’s complexity and ambiguities found in its description. To resolve these ambiguities, a set of general techniques for feature stability is defined based on the smoothness rule. Additional im...

2003
M. Garcés C. Hetzer M. Merrifield M. Willis J. Aucan

[1] Comparison of ocean buoy measurements with infrasonic array data collected during the epic winter of 2002–2003 shows a clear relationship between breaking ocean wave height and infrasonic signal levels. In addition, infrasonic arrays allow the identification of distinct breaking zones along the shoreline. Our observations suggest that infrasonic measurements can be used in conjunction with ...

2009
Jill Freyne Barry Smyth

Visualization is among the most powerful of data analysis techniques and is readily available in standalone systems or components of everyday software packages. In recent years much work has been done to design and develop visualization systems with reduced entry and usage barriers in order to make visualization available to the masses. Here we describe a novel application of case-based reasoni...

1999
Andrew B. Kennedy Qin Chen James T. Kirby Robert A. Dalrymple

Parts I and II of this paper describe the extension and testing of two sets of Boussinesq-type equations to include surf zone phenomena. Part I is restricted to 1D tests of shoaling, breaking, and runup, while Part II deals with two horizontal dimensions. The model uses two main extensions to the Boussinesq equations: a momentum-conserving eddy viscosity technique to model breaking, and a ‘‘slo...

2014
Ulrika Nörby Birger Winbladh Tero Shemeikka Seher Korkmaz

Q3 What other information sources concerning medications during pregnancy do you use? Q3_1 physician/midwife Q3_2 Sjukvårdsrådgivningen 1177=Medical helpline Q3_3 pharmacies Q3_4 Fass.se Q3_5 internet sites/discussion forums/facebook groups for pregnant women Q3_6 friends and relatives Q3_7 tv/newspapers/news sites on the internet Q3_8 via google or other search engine Q3_9 others, please state...

2013
Tiffany M. Roberts Ping Wang Nicholas C. Kraus

ROBERTS, T.M.; WANG, P., and KRAUS, N.C., 2010. Limits of wave runup and corresponding beach-profile change from large-scale laboratory data. Journal of Coastal Research, 26(1), 184–198. West Palm Beach (Florida), ISSN 07490208. The dataset from the SUPERTANK laboratory experiment was analyzed to examine wave runup and the corresponding upper limit of beach-profile change. Thirty SUPERTANK runs...

Hadi Seyedarabi Parvaneh Shayghan Gharamaleki

This paper is based on a combination of the principal component analysis (PCA), eigenface and support vector machines. Using N-fold method and with respect to the value of N, any person’s face images are divided into two sections. As a result, vectors of training features and test features are obtain ed. Classification precision and accuracy was examined with three different types of kernel and...

Hossein Shirazi, Nikbakhsh Javadian Reza Kia Reza Tavakkoli-Moghaddam

This paper presents a multi-objective mixed-integer nonlinear programming model to design a group layout of a cellular manufacturing system in a dynamic environment, in which the number of cells to be formed is variable. Cell formation (CF) and group layout (GL) are concurrently made in a dynamic environment by the integrated model, which incorporates with an extensive coverage of important ...

2008
Kamal Nasrollahi Thomas B. Moeslund

When a person passes by a surveillance camera a sequence of image is obtained. Before performing any analysis on the face of a person, the face first needs to be detected and secondary the quality of the different face images needs to be evaluated. In this paper we present a system based on four simple features including out-of-plan rotation, sharpness, brightness and resolution, to assess the ...

Journal: :Int. J. Comp. Sci. Sport 2004
Neville de Mestre

Waves on the ocean are generated well away from any shoreline and travel under a prevailing wind towards a distant shore. These deep-water waves eventually become shallow-water waves and break near the shore creating a turbulent surf front of bubbles, foam and spray, encompassing secondary breaking and smaller splashing waves. Human surfers can propel themselves shorewards on these breakers or ...

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