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Supresión activa de ruido adversarial para la localización de falsificaciones de imágenes

Rongxuan Peng, Shunquan Tan, Xianbo Mo

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    Resumen
    Este resumen es generado por máquina.

    Este estudio presenta un Módulo de Supresión de Ruido Adversarial (ANSM) para defender los modelos de localización de falsificaciones de imágenes contra ataques adversariales. El método restaura eficazmente el rendimiento del modelo en imágenes atacadas sin afectar las imágenes falsificadas originales.

    Palabras clave:
    localización de falsificaciones de imágenesataques adversarialessupresión de ruido adversarialrobustez del modelointeligencia artificial

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    Área de la Ciencia:

    • Informática
    • Inteligencia Artificial
    • Procesamiento de Imágenes

    Sus antecedentes:

    • Los avances en el aprendizaje profundo mejoran la localización de falsificaciones de imágenes, pero los modelos son vulnerables a ataques adversariales.
    • El ruido imperceptible en los ataques adversariales engaña significativamente a los modelos actuales de localización de falsificaciones.

    Objetivo del estudio:

    • Desarrollar un mecanismo de defensa contra ataques adversariales para la localización de falsificaciones de imágenes.
    • Mejorar la robustez de los modelos de aprendizaje profundo en la detección de imágenes manipuladas.

    Principales métodos:

    • Se introdujo un Módulo de Supresión de Ruido Adversarial (ANSM) que genera perturbaciones defensivas.
    • Se implementó una estrategia de entrenamiento en dos etapas: Alineación de Características Relevantes para Falsificaciones (FFA) y Refinamiento Guiado por Máscara (MgR).
    • FFA minimiza las discrepancias de distribución utilizando la divergencia de Kullback-Leibler.
    • MgR utiliza restricciones de máscara dual para el refinamiento.

    Principales resultados:

    • El método propuesto restaura significativamente el rendimiento de la localización de falsificaciones en imágenes adversariales.
    • El rendimiento en imágenes falsificadas originales permanece en gran medida sin afectar al usar el ANSM.
    • Experimentos exhaustivos confirman la efectividad en varios algoritmos de ataque.

    Conclusiones:

    • El Módulo de Supresión de Ruido Adversarial (ANSM) desarrollado proporciona una defensa eficaz contra ataques adversariales en la localización de falsificaciones de imágenes.
    • Este trabajo representa la primera defensa adversarial reportada específicamente para tareas de localización de falsificaciones de imágenes.
    • Se publican el código fuente y el conjunto de datos de antifalsificación para futuras investigaciones.