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Contour evolution scheme f or variational image se gmentation and smoothing S. Mahmoodi and B.S. Sharif
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Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.

Dec 18, 2015

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Page 1: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.

Contour evolution scheme for variational image segmentation and s

moothing

S. Mahmoodi and B.S. Sharif

Page 2: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.

Outline

Introduction Modifications And Implementation Result

Page 3: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.

Introduction

Use M-S function without the contour length minimization term

Based on the C-V model Three modification to the M-S and C-V

models are proposed

Page 4: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.

Contour length minimization term is dropped Gaussian filter is applied to φ(x,y) in every itera

tion to improve the performance of the algorithm in very noisy images

C-V models proposed are extended to piecewise polynamials and Fourier series

Page 5: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.

f(x,y) is the smoothed continuous function

g(x,y) is the piecewise continuous function

With the Neumann boundary condition

Page 6: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.
Page 7: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.
Page 8: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.
Page 9: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.

Modifications and implementation

Page 10: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.
Page 11: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.
Page 12: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.
Page 13: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.
Page 14: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.

Result

Page 15: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.
Page 16: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.
Page 17: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.
Page 18: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.
Page 19: Contour evolution scheme for variational image segmentation and smoothing S. Mahmoodi and B.S. Sharif.