A Learnable Gradient operator for face presentation attack detection
Caixun Wang, Bingyao Yu, Jie Zhou
Topics & Concepts
Sobel operatorDiscriminative modelComputer scienceOperator (biology)Face (sociological concept)Artificial intelligenceImage gradientGeneralizationGradient descentPattern recognition (psychology)Convolution (computer science)AlgorithmImage (mathematics)Computer visionImage processingMathematicsEdge detectionArtificial neural networkGeneRepressorSociologySocial scienceTranscription factorMathematical analysisChemistryBiochemistryBiometric Identification and SecurityFace recognition and analysisFace and Expression Recognition