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Explainable Face Liveness Classification Mičulek, Petr ; Beran, Vítězslav (referee) ; Špaňhel, Jakub (advisor) Cílem této práce je analýza, vývoj a vyhodnocení vysvětlitelných systémů klasifikace živosti obličeje. Klasifikace živosti obličeje slouží jako bezpečnostní filtr vyřazující podvrhy před provedením rozpoznávání obličeje. Klasifikátory živosti obličeje proto nezbytně stojí v pozadí vzestupu biometrických systémů v chytrých telefonech a bezpečnostních kamerách. Standardní neuronové sítě pro tuto úlohu však neposkytují vysvětlení pro svá rozhodnutí. V této práci jsou tedy prozkoumány a použity metody vysvětlitelnosti, konkrétně atribuce vstupních dat. V rámci těchto metod jsou provedeny experimenty na zhodnocení jejich vhodnosti a jako nejvhodnější je vybrán GradCAM používající dodatečné augmentace. Dosahuje hodnoty AUC metriky při umazávání snímku o hodnotě 0,658 a AUC při vkládání do snímku 0,908. Ačkoli další experimenty ukazují limity věrnosti těchto vysvětlení a jejich ne vždy jasnou srozumitelnost, je ukázáno, že poskytují vodítka pro vylepšení prediktivních schopností systémů pro vyhodnocení živosti obličejů. Detailed record

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