TY - GEN
T1 - Source camera identification based on sensor dust characteristics
AU - Dirik, A. Emir
AU - Senear, Husrev T.
AU - Memon, Nasir
N1 - Publisher Copyright:
© 2007 IEEE.
PY - 2007
Y1 - 2007
N2 - A problem associated with digital single lens (DSLR) cameras is sensor dust. This problem arises due to dust particles attracted to the sensor, when the interchangeable lens is removed, creating a dust pattern in front of the imaging sensor. Sensor dust patterns reveals themselves as artifacts on the captured images and they become more visible at smaller aperture values. Since this pattern is not changed unless the sensor surface is cleaned, it can be used to match a given image to source DSLR camera. In this paper, we propose a new source camera identification method based on sensor dust characteristics. Dust specks on the image are detected using intensity variations and shape features to form the dust pattern of the DSLR camera. Experimental results show that the method can be used to identify the source camera of an image at very low false positive rates.
AB - A problem associated with digital single lens (DSLR) cameras is sensor dust. This problem arises due to dust particles attracted to the sensor, when the interchangeable lens is removed, creating a dust pattern in front of the imaging sensor. Sensor dust patterns reveals themselves as artifacts on the captured images and they become more visible at smaller aperture values. Since this pattern is not changed unless the sensor surface is cleaned, it can be used to match a given image to source DSLR camera. In this paper, we propose a new source camera identification method based on sensor dust characteristics. Dust specks on the image are detected using intensity variations and shape features to form the dust pattern of the DSLR camera. Experimental results show that the method can be used to identify the source camera of an image at very low false positive rates.
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M3 - Conference contribution
AN - SCOPUS:84969285347
T3 - Proceedings - SAFE 2007: Workshop on Signal Processing Applications for Public Security and Forensics
BT - Proceedings - SAFE 2007
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - Workshop on Signal Processing Applications for Public Security and Forensics, SAFE 2007
Y2 - 11 April 2007 through 13 April 2007
ER -