نتایج جستجو برای: array thinning

تعداد نتایج: 144028  

2014
Lili Chen Zhiyou Yuan Hongbo Shao Dexiang Wang Xingmin Mu

Thinning is a crucial practice in the forest ecosystem management. The soil infiltration rate and water storage capacity of pine-oak mixed forest under three different thinning intensity treatments (15%, 30%, and 60%) were studied in Qinling Mountains of China. The thinning operations had a significant influence on soil infiltration rate and water storage capacity. The soil infiltration rate an...

2013
Jun-Sik Kwon

To extract the creditable features in a fingerprint image, many people use a thinning algorithm that plays a very important role in preprocessing. In this paper, we propose a robust parallel thinning algorithm that can preserve the connectivity of the binarized fingerprint image, while making the thinnest skeleton of only 1-pixel wide, which gets extremely close to the medial axis. The proposed...

Journal: :Science 2014
J S Johnson M J Bentley J A Smith R C Finkel D H Rood K Gohl G Balco R D Larter J M Schaefer

Pine Island Glacier, a major outlet of the West Antarctic Ice Sheet, has been undergoing rapid thinning and retreat for the past two decades. We demonstrate, using glacial-geological and geochronological data, that Pine Island Glacier (PIG) also experienced rapid thinning during the early Holocene, around 8000 years ago. Cosmogenic (10)Be concentrations in glacially transported rocks show that ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Xinliang Xu Stuart A Rice Aaron R Dinner

Colloidal suspensions exhibit shear thinning and shear thickening. The most common interpretation of these phenomena identifies layering of the fluid perpendicular to the shear gradient as the driver for the observed behavior. However, studies of the particle configurations associated with shear thinning and thickening cast doubt on that conclusion and leave unsettled whether these nonequilibri...

Journal: :CoRR 2011
Soumen Bag Gaurav Harit

Thinning of character images is a big challenge. Removal of strokes or deformities in thinning is a difficult problem. In this paper, we have proposed a medial axis based thinning strategy used for performing skeletonization of printed and handwritten character images. In this method, we have used shape characteristics of text to get skeleton of nearly same as the true character shape. This app...

2005
Diego Pérez Markku Kanninen

The aim of the study was to evaluate the effects of thinning intensity on wood properties, such as heartwood proportion, wood basic density, and stem form of teak (Tectona grandis L.f.). The thinning trial was established on a teak plantation in a humid tropical site in northern Costa Rica. The moderate and heavy thinnings yielded the highest percentage of heartwood volume (25 to 30% of total s...

2003
Robert E. Banfield Lawrence O. Hall Kevin W. Bowyer W. Philip Kegelmeyer

We introduce a new way of describing the diversity of an ensemble of classifiers, the Percentage Correct Diversity Measure, and compare it against existing methods. We then introduce two new methods for removing classifiers from an ensemble based on diversity calculations. Empirical results for twelve datasets from the UC Irvine repository show that diversity is generally modeled by our measure...

Journal: :J. Electronic Imaging 1995
Hsin-Chia Fu Ting-Shan Cheng Cheng-Chin Chiang Shing-Ming Roan

Wepropose an improvedthinning algorithm. Basically, the algorithm uses a 3x 3 window to accommodate an eight-neighbor skeleton in each thinning iteration. This algorithm overcomes many thinning problems, such as Y-shaped distortions, spiky skeletons, and skeleton shortening, and thus preseives precise features of digital character patterns. By using this thinning algorithm, better structural fe...

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