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Towards Automatic Detection of Child Pornography
This paper presents a child pornographic image detection system that identifies human skin tones in digital images, extracts features to detect explicit images and performs facial image based age classification. The novelty ...
Fast camera fingerprint matching in very large databases
Given a query image or video, or a known camera fingerprint, there is a lack of capabilities for fast identification of media, from a large repository of images and videos, that match the query fingerprint. This work ...
Recent Advances in Counter PRNU Based Source Attribution and Beyond
(SPIE-INT SOC Optical Engineering, 2015)
Photo response noise uniformity (PRNU) based source attribution has proven to be a powerful technique in multimedia forensics. The increasing prominence of this technique, combined with its introduction as evidence in the ...
Extracting PRNu noise from H.264 coded videos
(IEEE Computer SOC, 2018)
Every device equipped with a digital camera has a unique identity. This phenomenon is essentially due to a systematic noise component of an imaging sensor, known as photo-response non-uniformity (PRNU) noise. An imaging ...
Towards Measuring Uniqueness of Human Voice
The use of voice as a biometric modality for user authentication and identification has grown very rapidly. It is therefore very important that we understand limitations of such systems which will ultimately depend on the ...