Lung Nodule Segmentation through Unsupervised Clustering Models

Available online at www.sciencedirect.com

Procedia Engineering 38 (2012) 3064 – 3073

1877-7058 © 2012 Published by Elsevier Ltd. doi:10.1016/j.proeng.2012.06.357

S. Sivakumar and C. Chandrasekar / Procedia Engineering 38 (2012) 3064 – 3073

3065

3066

S. Sivakumar and C. Chandrasekar / Procedia Engineering 38 (2012) 3064 – 3073

( , )=

−

,

>1

S. Sivakumar and C. Chandrasekar / Procedia Engineering 38 (2012) 3064 – 3073

=

,

=

,

= 1, … , ,

= 1, … ,

= 1, … . , .

(

)

(

) (

)

−

()

<

( )=1 ,….,

,……,

={

,……,

|

( ) > 0,

}

,….,

( , )=

−

+

=

=

, 1

;

1−

3067

3068

S. Sivakumar and C. Chandrasekar / Procedia Engineering 38 (2012) 3064 – 3073

,

( , , ; ) =

=

,1

=

,1

=

−

;1

;1

,1

=

=

+

−

+

−

S. Sivakumar and C. Chandrasekar / Procedia Engineering 38 (2012) 3064 – 3073

= .

=

=

exp(− ×

−

( )=

log

( )=−

( )=

(

)

/ )

3069

3070

S. Sivakumar and C. Chandrasekar / Procedia Engineering 38 (2012) 3064 – 3073

( )=

( )=

(

) ,

(

) ,

S. Sivakumar and C. Chandrasekar / Procedia Engineering 38 (2012) 3064 – 3073

3071

3072

S. Sivakumar and C. Chandrasekar / Procedia Engineering 38 (2012) 3064 – 3073

S. Sivakumar and C. Chandrasekar / Procedia Engineering 38 (2012) 3064 – 3073

3073