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ICPR
2010
IEEE
13 years 9 months ago
Using Snakes with Asymmetric Energy Terms for the Detection of Varying-Contrast Edges in SAR Images
Active contour methods like snakes, have become a basic tool in computer vision and image analysis over the last years. They have proven to be adequate for the task of finding bou...
Benjamin Seppke, Leonie Dreschler-Fischer, Nathana...
ISBI
2008
IEEE
14 years 8 months ago
Phase contrast image segmentation by weak watershed transform assembly
We present here a method giving a robust segmentation for in vitro cells observed under standard phase-contrast microscopy. We tackle the problem using the watershed transform. Wa...
Olivier Debeir, Ivan Adanja, Nadine Warzée,...
TMI
2011
108views more  TMI 2011»
13 years 2 months ago
Motion Correction and Attenuation Correction for Respiratory Gated PET Images
Positron emission tomography (PET) is a molecular imaging technique which is now widely established as a powerful tool for diagnosing a variety of cancers. However, PET images are...
Wenjia Bai, Michael Brady
CIMAGING
2009
130views Hardware» more  CIMAGING 2009»
13 years 5 months ago
Quantitative phase and amplitude imaging using Differential-Interference Contrast (DIC) microscopy
We present an extension of the development of an alternating minimization (AM) method1 for the computation of a specimen's complex transmittance function (magnitude and phase...
Chrysanthe Preza, Joseph A. O'Sullivan
JMLR
2012
11 years 10 months ago
Noise-Contrastive Estimation of Unnormalized Statistical Models, with Applications to Natural Image Statistics
We consider the task of estimating, from observed data, a probabilistic model that is parameterized by a finite number of parameters. In particular, we are considering the situat...
Michael Gutmann, Aapo Hyvärinen