Results 251 to 260 of about 236,702 (302)
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Snakes on the watershed

IEEE Transactions on Pattern Analysis and Machine Intelligence, 2001
We present a new approach for object boundary extraction, called the watersnake. It is a two-step snake algorithm whose energy functional is minimized by the dynamic programming method. It is more robust to local minima because it finds the solution by searching the entire energy space.
Jaesang Park, James M. Keller
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Mosaics and Watersheds

2005
We investigate the effectiveness of the divide set produced by watershed algorithms. We introduce the mosaic to retrieve the altitude of points along the divide set. A desirable property is that, when two minima are separated by a crest in the original image, they are still separated by a crest of the same altitude in the mosaic. Our main result states
Najman, Laurent   +2 more
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Watershed superpixel

2015 IEEE International Conference on Image Processing (ICIP), 2015
As a pre-processing tool, superpixel algorithms have been popular used in many computer-vision applications. High efficiency is a desired property of superpixel algorithms, especially in real-time vision systems. In this paper, a novel high-efficient superpixel algorithm is developed based on the watershed algorithm, namely the spatial-constrained ...
Zhongwen Hu   +2 more
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On Watershed Management

Journal of Crop Improvement, 2009
Significant developments have occurred in India in the past three to four decades with respect to the state of natural resources and human population, as part of various watershed programs. Much experience has been gained by governmental and non-governmental institutions and by the stakeholders engaged in these endeavors.
Hemant Chowdhary, Vijay Singh
openaire   +1 more source

The Watershed Empires

Medicine, Conflict and Survival, 2005
Watershed empires, founded by states in the highlands on the upper reaches of river systems, conquered the flood plains and other regions around them. Three of these, Ch'in in ancient China, Assyria in the middle east, and the Inca of Peru, are described, with emphasis on the horrific socio-political systems which they developed.
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Watershed Management☆

2014
This article presents a scientific overview of the basic implementation of the principles of ecological engineering in watershed management. The first two sections discuss the landscape factors of nutrient fluxes and the critical source areas in rural watersheds.
Mander, Ülo, Tournebize, Julien
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A Watershed, Not a Waterloo

Frontiers of Health Services Management, 2005
WHEN I WAS first asked to write this commentary for Frontiers of Health Services Management, knowing that I would be contributing with the likes of Emily Friedman, I must admit I was a bit intimidated. But after reflection, I realized that I was able to offer comments on a subject I know all too well-the uninsured and the lack of a comprehensive ...
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Algorithms for the Topological Watershed

2005
The watershed transformation is an efficient tool for segmenting grayscale images. An original approach to the watershed [1,4] consists in modifying the original image by lowering some points until stability while preserving some topological properties, namely, the connectivity of each lower cross-section.
Couprie, Michel   +2 more
openaire   +2 more sources

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