KeyLemon Blog

KeyLemon participated at the first kick off meeting of the European Project Tabula Rasa

Posted on November 12, 2010 by Gilles | 1 Comment

The TABULA RASA project will address some of the issues of direct (spoofing) attacks to trusted biometric systems. This is an issue that needs to be addressed urgently because it has recently been shown that conventional biometric techniques, such as fingerprints and face, are vulnerable to direct (spoof) attacks.

Brazil, the KeyLemon 2010 World Cup Champion

Posted on July 19, 2010 by Gilles | 1 Comment

While it’s the end of the World Cup in South Africa, it is the beginning to celebrate the new KeyLemon World Cup champion. Brazil raised for the first time the KeyLemon World Cup Trophy. Congratulation…

Features and Classifiers

Posted on April 23, 2010 by sebastien | No Comments

In this new post, I will introduce 2 concepts that are key elements in all face processing algorithms: features and classifiers. Let's start with some definitions: Features "In pattern recognition, features are the individual measurable heuristic properties of the phenomena being observed. Choosing discriminating and independent features is key to any pattern recognition algorithm being successful in classification. Features are usually numeric, but structural features such as strings and graphs are used in syntactic pattern recognition." (Wikipedia) Classifiers "A classifier is a sort of a function that provides a tagged class as an ...