Publication: Identificación de la fuente en vídeos de dispositivos móviles
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2016
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Abstract
El incesante aumento del número de dispositivos móviles con cámaras integradas ha originado que la mayoría de los vídeos digitales procedan de este tipo de dispositivos. Estos vídeos digitales pueden ser realizados en cualquier momento, en cualquier lugar y con diferentes fines, distribuyéndose en Internet en un corto período de tiempo y mostrando en ocasiones actos ilegales. La necesidad de establecer de forma fiable el origen se hace evidente cuando se utilizan estos vídeos en un contexto forense. En este trabajo se propone un algoritmo para identificar la marca y el modelo del dispositivo móvil que generó el vídeo. Su funcionamiento es como sigue: tras extraer la información relevante del vídeo, un algoritmo de clasificación, basado en el ruido del sensor y la Transformada Wavelet, realiza el proceso de identificación del dispositivo móvil.
An increasing number of mobile devices with integrated cameras has meant that most digital video comes from these devices. These digital videos can be made anytime, anywhere and for different purposes. They can also be shared on the Internet in a short period of time and may sometimes contain recordings of illegal acts. The need to reliably trace the origin becomes evident when these videos are used for forensic purposes. This work proposes an algorithm to identify the brand and model of mobile device which generated the video. Its procedure is as follows: after obtaining the relevant video information, a classification algorithm based on sensor noise and Wavelet Transform performs the aforementioned identification process.
An increasing number of mobile devices with integrated cameras has meant that most digital video comes from these devices. These digital videos can be made anytime, anywhere and for different purposes. They can also be shared on the Internet in a short period of time and may sometimes contain recordings of illegal acts. The need to reliably trace the origin becomes evident when these videos are used for forensic purposes. This work proposes an algorithm to identify the brand and model of mobile device which generated the video. Its procedure is as follows: after obtaining the relevant video information, a classification algorithm based on sensor noise and Wavelet Transform performs the aforementioned identification process.
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Máster en Investigación en Informática, Facultad de Informática, Departamento de Ingeniería del Software e Inteligencia Artificial, curso 2015-2016