Changes between Initial Version and Version 1 of recipes/AnalysingMasculinityFromShape

Timestamp:

Mar 23, 2012, 8:46:33 PM (12 years ago)

Author:

Dave Hunter

Comment:

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recipes/AnalysingMasculinityFromShape

@@ +1 @@
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+== Recipe for analysing masculinity from shape ==
+
+By: Dan Re
+
+
+Put all men and women’s face tems /jpegs in one directory.
+
+Make sure all aligned to same grand average of men and women.
+
+
+
+== Reducing templates (Updated 20 December 2011) ==
+
+Used for morphological masculinity analysis, etc.
+
+
+This recipe is for deleting lines from templates, which is useful for conducting PCA on face shape. We used this to create morphological masculinity scores.
+
+THIS RECIPE WORKS WITH THE NEWEST VERSION OF PSYCHOMORPH, WHICH HAS A PLUGIN CALLED “BATCH BATCH DELETE LINES.”
+
+'''Step 1''': Create a list of jpegs and templates for the images you want to delete lines from (the list would look the same as a list for averaging faces).
+
+'''Step 2''': Create a list of points that you want to delete. You can find the point labels by clicking “View>Draw Labels” in the Transform (single) window. Create the list by naming the points with a space in between. For example, to delete the left and right cheekbone lines in a 3dsk face, you would create the following list:[[BR]]
+“164 165 166 167 168 169”.[[BR]]
+Make sure to save the list of images and templates and the list of points in the same directory.[[BR]]
+'''Step 3''': To batch delete points, go to the Transform window and click “Plugins>Perception Lab.jar>Batch Batch Delete Points.” This will prompt you four times.[[BR]]
+'''Step 4''': Open the LIST OF POINTS you want to delete first.[[BR]]
+'''Step 5''': Open the LIST OF IMAGES AND TEMPLATES second.[[BR]]
+'''Step 6''': Name your output directory[[BR]]
+'''Step 7''': Enter a string to append[[BR]]
+This should create a new set of templates without the lines for the points you deleted.
+
+ 
+
+== PCA ==
+
+Build asm file
+
+Select menu option (Dual window>PCA>Build Shape PCA (ASM)>Create file name for saving> Open list of trimmed_templates).[[BR]]
+Create PCA of shape >n components[[BR]]
+Select menu option  (PCA>Batch PCA Analyse Shape> ASM file> Save output directory> List of images and tems).[[BR]]
+This creates a list of PCA components  of decreasing importance (variance explained (see bottom line) and the list has the same order of faces as the list of images and tems
+
+Note: PCA components do not come out in terms of decreasing importance in Psychomorp
+
+Using excel, determine which components in the model explain greater than average variance and truncate the model to include only these.
+
+
+== Stage 3 building shape model predicting sex ==
+
+Take into spss for regression/discriminate analysis
+ 
+(incomplete)
+
+