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Published 1 year, 8 months ago, on June 29, 2017, 2:51 p.m.
Experiment: sbhatta/ivana7c/simple-antispoofing-updated/1/replay2-antispoofing-lbp-histograms
Description: Face antispoofing using comparison of LBP histograms

Outputs for block analyzer

dev_eer 0.366667
dev_eer_threshold -0.190719
dev_far 0.366667
dev_frr 0.366667
test_far 0.34
test_frr 0.45
test_hter 0.395
dev_numNegatives 300
dev_numPositives 60
test_numNegatives 400
test_numPositives 80
dev_scoreDistribution
test_scoreDistribution
dev_roc
test_roc
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Histograms of LBP features are computed for the samples in the training-set. From these histograms, mean-histograms are computed for each of the two classes: real, and attack. Given a new probe, a histograms of LBP features is computed for the probe, and this is compared with the mean-histograms of the two classes. The probe is assigned to the class closest to it, based on the chi-square distance for histogram-similarity.

This method is described in the paper by Chingovska et al:

@INPROCEEDINGS{Chingovska_IEEEBIOSIG2012_2012,
  author = {Chingovska, Ivana and Anjos, Andr{\'{e}} and Marcel, S{\'{e}}bastien},
  projects = {Idiap, TABULA RASA},
  month = sep,
  title = {On the Effectiveness of Local Binary Patterns in Face Anti-spoofing},
  booktitle = {Proceedings of the 11th International Conference of the Biometrics Special Interest Group},
  year = {2012},
  }
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