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An analysis of optical contributions to a photo-sensor's ballistic fingerprints
TLDR
Standard image processing theory, an understanding of frequency properties relating to the physics of light and temperature response of sensor dark current to classify artefacts are applied, and a new additive signal model is proposed to account for artefacts previously thought to have been isolated from the ballistic fingerprint. Expand
Isolating lens effects from source camera identification using sensor pattern noise
TLDR
It is shown that majority of the unique signal power used to correlate an image to a specific camera is related to the photo response non-uniformity noise; however, additional signal power can also be attributed to the optical system of the camera as well as the sensor's dark current. Expand
Determining image sensor temperature using dark current
TLDR
It is hypothesised that DSN is not only a viable method for forensic identification but, through proper analysis of the thermal component, can lead to insights regarding the specific temperature at which an individual image under test was taken. Expand
Reverse engineering the Raspberry Pi Camera V2: A study of pixel non-uniformity using a scanning electron microscope
In this paper we reverse engineer the Sony IMX219PQ image sensor, otherwise known as the Raspberry Pi Camera v2.0. We provide a visual reference for pixel non-uniformity by analysing variations inExpand
Wild Indonesia [rekaman video]
This series tells the story of one of the world's most fascinating regions and its magical wildlife. Terbentang di garis khatulistiwa 5.000 kilometer yang terletak diantara Asia dan Australia.Expand
Ghost protocol - Snapchat as a method of surveillance
TLDR
The exploitation of Snapchat's Snap Map is described as a surveillance tool to monitor the social unrest in Minneapolis Saint Paul following the death of George Floyd, making specific use of the manner in which Snapchat presents Snaps on a publicly accessible map. Expand
Rethinking Image Sensor Noise for Forensic Advantage
TLDR
Analysis of the diversity of sources of noise remaining within the noise residue shows that further insight is possible within a unified sensor pattern noise concept which opens the field to approaches for obtaining fingerprints utilising fewer resources with comparable performance to existing methods. Expand