Slicer3:Module:Target Preprocessing-Documentation - Revision history

Csmendo: /* Module Name */

2008-08-11T21:05:46Z

Module Name

2008-08-11T21:05:23Z

Module Name

2008-08-11T21:04:57Z

Quick Tour of Features and Use

2008-08-11T21:03:09Z

Quick Tour of Features and Use

2008-08-11T20:54:54Z

2008-08-11T20:26:08Z

Quick Tour of Features and Use

2008-08-11T20:25:45Z

Quick Tour of Features and Use

2008-08-11T20:25:31Z

General Information

2008-08-11T20:24:50Z

General Information

2008-08-11T20:23:58Z

Module Name

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 |+
 | __TOC__
+|-
 |[[Image:Target1.png|thumb|380px|]]
 |-
 |[[Image:Target2.jpg|thumb|380px|]]
 |}

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 | __TOC__
+|
 |[[Image:Target1.png|thumb|380px|]]
 |-
 |[[Image:Target2.jpg|thumb|380px|]]
+|
 |}

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 *Degree of Edge Loss: Controls the conductance term of the GAD filter. Greater conductance reduces the edge preserving property of the GAD filter.
-*Transition interval of the mapping slope: After the GAD is applied the gradient magnitude is taken. Then a non linear sigmoid function mapping is performed so that values end up being close to 1 for edges and close to 0 for homogeneous areas. The sigmoid will be centered on the mean value of the gradient magnitude. This parameter controls the steepness of the sigmoid. A bigger value in this parameter means that the the sigmoid will increase more smoothly and more different values of the gradient will be distinguishable in the resulting feature image.
+*Smoothness of the mapping slope: After the GAD is applied the gradient magnitude is taken. Then a non linear sigmoid function mapping is performed so that values end up being close to 1 for edges and close to 0 for homogeneous areas. The sigmoid will be centered on the mean value of the gradient magnitude. This parameter controls the steepness of the sigmoid. A bigger value in this parameter means that the the sigmoid will increase more smoothly and more different values of the gradient will be distinguishable in the resulting feature image.
 |}

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 | The parameters have the following meaning:
-*Initial Label Image: The output of the [[Slicer3:Module:Bubble_Maker-Documentation|Bubble Maker]] module.
+*Input Volume: The output of the [[Slicer3:Module:Region_Selector-Documentation|Region Selector]] module.
 |}

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 {|
 |[[Image:Target3.jpg|thumb|280px|Panel]]
+| The parameters have the following meaning:
 |}

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 {|
-|[[Image:Region3.jpg|thumb|280px|Panel]]
+|[[Image:Target3.jpg|thumb|280px|Panel]]
+|
 |}

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 == General Information ==
 The purpose of this filter is to create a feature image that is suitable
-for a level-set algorithm from an intensity image.
+for a level-set algorithm, from an intensity image.
 It takes the original image and performs anisotropic gaussian diffusion
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 Then the magnitude of the gradient is computed. This magnitude is then
-non-linearly remapped so as to get really small values
+non-linearly remapped so as to get very small values
-in the image edges and really big values in homogeneous areas.
+in the image edges and very big values in homogeneous areas.
 ===Module Type & Category===
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 ===Authors, Collaborators & Contact===
 * Author: Carlos S. Mendoza, Universidad de Sevilla
 * Contact: carlos.sanchez.mendoza@gmail.com

← Older revision		Revision as of 20:24, 11 August 2008
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	== General Information ==		== General Information ==
		+	The purpose of this filter is to create a feature image that is suitable
		+	for a level-set algorithm from an intensity image.

		+	It takes the original image and performs anisotropic gaussian diffusion
		+	on it, reducing the noise while preserving the edges.
		+
		+	Then the magnitude of the gradient is computed. This magnitude is then
		+	non-linearly remapped so as to get really small values
		+	in the image edges and really big values in homogeneous areas.
	===Module Type & Category===		===Module Type & Category===