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| 2012-11-10 04:33:21 -0600 | asked a question | LBP based Face Detection Hello, I have been trying to use trainCascade to train a LBP feature based face classifier. However, the accuracy is not good. The number of pos and neg for my training is more than the data\lbpcascades\lbpcascade_frontalface.xml. The description of lbpcascade_frontalface.xml is: number of positive samples 3000 number of negative samples 1500 Now I used 5000 pos and 5000 neg for training but the trained classifier is worse than the default lbpcascade_frontalface.xml. What is the reason? Thx in advance. |