... Introduction, image recognition problem 2. ... The first security application 6. ... We use, at first, as the training sample, the following set (see fig. below): [pic] The RBF neural network with L2 -metrics after training on this small set was enabled to recognize without errors specially distorted faces from the same set (see the next picture) [pic] However, as soon as we decided to apply our RBF net to 400 images set from the famous Cambridge face database, our neural net began to mix up faces. ...

502. http://curl.sai.msu.ru/mass/download/doc/elt_description.pdf