Results 1 to 10 of about 58,196 (258)

MAC: Magnetostatic Active Contour Model

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2008
We propose an active contour model using an external force field that is based on magnetostatics and hypothesized magnetic interactions between the active contour and object boundaries.
Xianghua Xie   +2 more
core   +7 more sources

A vessel active contour model for vascular segmentation. [PDF]

open access: yesBiomed Res Int, 2014
This paper proposes a vessel active contour model based on local intensity weighting and a vessel vector field. Firstly, the energy function we define is evaluated along the evolving curve instead of all image points, and the function value at each point on the curve is based on the interior and exterior weighted means in a local neighborhood of the ...
Tian Y   +7 more
europepmc   +4 more sources

ORACM: Online region-based active contour model

open access: yesExpert Systems With Applications, 2013
A new online region-based active contour model (ORACM) is proposed in this paper. The classical geodesic active contour (GAC) model has only local segmentation property, although the Chan-Vese (C-V) model possesses global.
Talu, M. Fatih
core   +2 more sources

A Model Based Dual Active Contour [PDF]

open access: yesProcedings of the British Machine Vision Conference 1994, 1994
Active contours are now established as a technique for extracting salient contours from an image. Unfortunately the original technique suffers from many problems.
Nixon, M.S.   +3 more
core   +2 more sources

A shape constrained parametric active contour model for breast contour detection. [PDF]

open access: yesAnnu Int Conf IEEE Eng Med Biol Soc, 2012
Quantitative measures of breast morphology can help a breast cancer survivor to understand outcomes of reconstructive surgeries. One bottleneck of quantifying breast morphology is that there are only a few reliable automation algorithms for detecting the breast contour.
Lee J   +3 more
europepmc   +4 more sources

Region scalable active contour model with global constraint

open access: yesKnowledge-Based Systems, 2017
© 2016 Existing Active Contour methods suffer from the deficiencies of initialization sensitivity, slow convergence, and being insufficient in the presence of image noise and inhomogeneity. To address these problems, this paper proposes a region scalable
Yue, X, Fujita, H, Xu, RYD, Chen, Y
core   +2 more sources

Fuzzy active contour model

open access: yesIEE Proceedings - Vision, Image, and Signal Processing, 2000
A new method for representing and tracking of object boundaries is presented, which allows for the integration of uncertain a priori knowledge into an active contour model.
Dooley, Laurence S.   +2 more
core   +2 more sources

A DSP-BASED active contour model [PDF]

open access: yes, 2004
In this paper a DSP-based active contour model for tracking of the endocardium in a sequence of echocardiographic images is presented. If a contour is available in the first frame of a sequence, the contours in the subsequent frames are segmented ...
Zapata Pérez, Juan Francisco   +1 more
core   +2 more sources

Multigrid Geometric Active Contour Models [PDF]

open access: yesIEEE Transactions on Image Processing, 2007
Geometric active contour models are very popular partial differential equation-based tools in image analysis and computer vision. We present a new multigrid algorithm for the fast evolution of level-set-based geometric active contours and compare it with other established numerical schemes. We overcome the main bottleneck associated with most numerical
George Papandreou, Petros Maragos
openaire   +2 more sources

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