How to obtain FMR and FNMR data?

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Baiduryakanti Majumder
回答： Walter Roberson 2015-5-10
I am working on 3d face recognition using histogram based features. I have two sets of feature vectors from two different face images. Now I want to plot the ROC curve. I am using the city block metric to compare the features.
1) How to find the city block metric? 2) How to obtain the FMR and FNMR? 3) How to plot the ROC curve?

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Walter Roberson
Walter Roberson 2015-5-10
pdist(), pdist2(), bwdist(), bwdistgeodesic(), graydist() -- a lot is going to depend on your representation.
Generally speaking, the city-block distance between two vectors U and V is sum(abs(U-V))

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