Generalized gradient vector flow for snakes: new observations, analysis, and improvement

L Qin, C Zhu, Y Zhao, H Bai… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
Snakes, or active contours, have been widely used in image processing applications. An
external force for snakes called gradient vector flow (GVF) attempts to address traditional …

[HTML][HTML] Image segmentation using active contours with hessian-based gradient vector flow external force

Q Qian, K Cheng, W Qian, Q Deng, Y Wang - Sensors, 2022 - mdpi.com
The gradient vector flow (GVF) model has been widely used in the field of computer image
segmentation. In order to achieve better results in image processing, there are many …

Fast gradient vector flow computation based on augmented Lagrangian method

D Ren, W Zuo, X Zhao, Z Lin, D Zhang - Pattern Recognition Letters, 2013 - Elsevier
Gradient vector flow (GVF) and generalized GVF (GGVF) have been widely applied in many
image processing applications. The high cost of GVF/GGVF computation, however, has …

Image segmentation using active contours with modified convolutional virtual electric field external force with an edge-stop** function

K Cheng, T **ao, Q Chen, Y Wang - Plos one, 2020 - journals.plos.org
The gradient vector flow (GVF) is an effective external force to deform the active contours.
However, it suffers from high computational cost. For efficiency, the virtual electric field (VEF) …

Watershed based intelligent scissors

W Wieclawek, E Pietka - Computerized Medical Imaging and Graphics, 2015 - Elsevier
Watershed based modification of intelligent scissors has been developed. This approach
requires a preprocessing phase with anisotropic diffusion to reduce subtle edges. Then, the …

Fast solver for some computational imaging problems: A regularized weighted least-squares approach

B Zhang, S Makram-Ebeid, R Prevost, G Pizaine - Digital signal processing, 2014 - Elsevier
In this paper we propose to solve a range of computational imaging problems under a
unified perspective of a regularized weighted least-squares (RWLS) framework. These …

Medical image segmentation with deformable models on graphics processing units

R Alvarado, JJ Tapia, JC Rolón - The Journal of Supercomputing, 2014 - Springer
In this work, the parallel implementation of a segmentation algorithm based on the gradient
vector flow (GVF) deformable model in a graphics processing unit (GPU) is presented. The …

Shape constraints for the left ventricle segmentation from cardiac cine mri based on snake models

Y Wang, Y Wu, Y Jia - Shape Analysis in Medical Image Analysis, 2014 - Springer
Segmentation of the left ventricle (LV) is a hot topic in cardiac magnetic resonance (MR)
images analysis. To make thorough use of the anatomical and functional information, it is …

An augmented Lagrangian method for fast gradient vector flow computation

J Li, W Zuo, X Zhao, D Zhang - 2011 18th IEEE International …, 2011 - ieeexplore.ieee.org
Gradient vector flow (GVF) and its generalization have been widely applied in many image
processing applications. The high cost of GVF computation, however, has restricted their …

Efficient numerical schemes for Chan-Vese active contour models in image segmentation

J Liang, M Li, C Liao - Multimedia Tools and Applications, 2018 - Springer
In this paper, we introduce multi-symplectic Lagrangian variational integrators for solving
Chan-Vese active contour models in image segmentation. Energy functionals are …