methode uitgebreid nu echt

content/method.tex

@@ -22,4 +22,6 @@ When Verilook cannot calculate a matching score, a score of minus 1 is saved in
 Verilook is not a stable program, after a random amount of comparisons the Ncore.dll crashed. To work around this problem a watch dog program was written. This program gets the status of the Verilook process and when the process is not responding it will restart the process. After every comparison the calculated score together with the status variables is saved. When the process restart, it continues where it left off. 
 
 \subsection{Get the ROC from every subject}
-Calculation all the ROC\rq{}s will be done with the use of MATLAB. All the comparison scores are stored in a upper triangular matrix. First step is to take sort all the comparison scores per individual. 3
+Calculation all the ROC\rq{}s will be done with the use of MATLAB. All the comparison scores are stored in a upper triangular matrix. First step is to sort all the comparison scores per subject and per picture. To store this information two structs where generated. The picture struct contains all genuine and imposter scores, the amount of failed matches for the picture is stored as \lq\lq{}noface\rq\rq{} The subject struct contains all genuine and imposter scores as well as all the picture scores of this particular subject, these picture scores contain the same information as the picture struct.
+
+With the use of a loop the true and false match ratings are calculated for each subject. The loop tests for each threshold value between zero and the maximum matching score how many impostor and genuine scores there are. Both the impostor score \[s>t\] and genuine score \[s>t\] is divided by the total amount of impostor and genuine comparisons. The outcome of each threshold is stored in an array which is itself stored in the subject struct.